Edmonton Commercial Flat Roof Repair, June 15, 2015

Article: Commercial Tar and Gravel Flat Roof Repair Edmonton.

Below is a brief roof site report from our Edmonton roofing repair crew. It is a commercial roof with a tar and gravel roof that has aged and dried. The layers of bitumen have dried and contraction is causing the layers to pull away from the wall. Tar and gravel roofing is one of a number of flat roofing systems available. Tar and gravel is one of the original systems. Torch on modified bituminous membranes then came out (manufactured in rolls), then single ply systems such as EPDM, TPO and PVC and fluid applied membranes. The advantage tar and gravel or built-up roofing (BUR) has is that if it is maintained regularly by a professional it can last almost forever. The disadvantage tar and gravel roofs have is the cost to replace. Tar and gravel roofing requires significant labour and as such is more expensive to replace than most roof systems. Below you will find a tar and gravel roof experiencing age related repair issues. Over time, as UV breaks down the bitumen and dries out the roof it will begin to contract and pull away from the edges. A common repair with tar and gravel roofing is at the roof edge. August 19, 2014: Crew Arrives On-Site To Complete Hourly Repairs.  We met with the client to inspect the leaks and the roof. When I got up on the roof I noticed that the client had tried to fix the leaks himself using tar, and lots of it. But where he put the tar was not the source of the leak, the leak was along the wall under the metal and the 4 ply of paper was split from the old BUR roof. It was split about 20 feet along the cant metal on both ends of the building. We performed a temporary repair to the roof using sopramastic and mesh. This should fix the problem of the leaks.
Tar And Gravel Repair Completed - Edmonton Flat Roof Repair.
Using mastic and mesh, we sealed in the actual source of the leaks. Water had been coming in along the wall under the metal. As well, the 4 ply paper had been split away from the old BUR roof.
Tar And Gravel Repair along roof parapet.
Roof parapet repaired using mastic and mesh.
Mastic Under Metal
Some of the flashing had buckled away from the parapet wall. We applied some mesh and mastic underneath this area and then secured the metal back into place.
Leak area of flat roof along cant flashing at wall.
Leak area of flat roof along the cant flashing at the parapet wall.
Flat Roof Tar And Gravel Repairs
We followed the same process as before, applying mastic and mesh along the perimeter of the cant flashing.
Visit our main website for Edmonton Flat Roofing Repair services. < End of Report > CONTACT US Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

EPDM Flat Roof Replacement Edmonton, June 12, 2015

Article: EPDM Flat Roof Replacement. Residential Low Slope Project.

Below is a site report detailing the installation of an EPDM flat roof replacement in Edmonton, Alberta. The roof was originally a built-up tar and gravel low slope roof that connected to a shingle pitched roof system. Considerations with respect to flat roof systems. When considering flat roof replacement options, it is best to consult experts prior to choosing which membrane you will use, what will make up the roof system, and how the roof assembly will be put together. There are many considerations such as slope of roof, drainage scuppers and internal drains, insulation value, which membranes work best in your climate, what will the effect be on the building efficiency, and much more. All decisions are vital to immediate and long-term success. A flat roof is a considerable expense so you want to be very cautious to make the right decisions.
Visit our main website for a complete guide to selecting flat roofing replacement systems.
May 9, 2013: Crew Arrives For Assessment. Flat Roof Inspection.  This is a tar and gravel flat roof that connects to a steep pitch shingle roof. The roof is leaking and has been for some time in different areas. The roof is soft and spongy and there will be some replacement of sheathing and possibly the insulation. The roof is 960 square feet and needs to be re-sloped. The old roof would have to be removed to add enough room for re-sloping.
Tar And Gravel Roof. Flat Roof Replacement Edmonton - EPDM.
Tearing in the roof membrane visible under the ballast rocks. The roof had become soft and spongy, with leaking in different areas all throughout.
Drain Needing Replacement on this roof.
Drain needing replacement on this roof.
Flat Roof image with chimney detail in photo.
Inspecting the chimney detail and previous spot repairs, surmising whether new metal components would need to be ordered for the replacement.
Existing Tar And Gravel Roof Before EPDM Install.
Pre-replacement photo of various appliances, such as the skylights and plumbing boots.
May 10, 2013: Flat Roof Replacement Quotation is Provided.  Our standard flat roof pricing, quotation formats and inspection reports are extensive to ensure you're equipped to ask the right questions when obtaining prices from other roofing contractors. Our quotes include all flat roof system membranes and methods of installations. Our inter-provincial journeymen red seal roofers are experts in each area of install.
Quotation
Quotation for flat roof replacement (page one only).
June 30, 2013: Crew Attends Site for Replacement of Flat Roof.
Re-Sloping Flat Roof to drain water properly.
The roof boards were mechanically fastened to the roof in such a way to achieve the correct pitch. Re-sloping ensures that a flat roof drains water properly.
Flat Roof Replacement - Roof board mechanically fastened with screws and plates.
Roof boards mechanically fastened with screws and plates around the skylights.
EPDM installation starting.
Beginning the EPDM installation around the roof edges.
July 2, 2013: Crew Finishes EPDM Roof Replacement.  EPDM Roof Is Complete.
Roof Completed With EPDM
Completed EPDM installation, with liquid rubber coatings applied around the base of the plumbing boot.
Flat Roof Replacement
Wide view of the flat section of the roof post-EPDM installation. All that remained was completing the detail work.
Flat Roof Replacement With EPDM
New drain installed on a narrow section of the flat roof, with liquid rubber coatings applied over the seams.
EPDM with new drain.
EPDM with new drain installed; seam patches visible in the background.
EPDM Flat Roof
To complete the site, we finished the detail work using seam patches and liquid rubber coatings.
< End Report > Contact Us Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. For All Other Areas of Canada Call us Toll-Free +1.877.497.3528. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

Temporary Flat Roof Repair Edmonton, June 15, 2015

Article: Temporary Flat Roof Repair. 2 Ply SBS Modified Bitumen Torch-On Roof.

Below is a short roof report that shows temporary emergency roof repairs using mastic to a flat roof in Edmonton, Alberta on a 2-Ply Mod Bit Torch-On System. Normally when we attend to flat roof repairs, the goal is to either perform repairs that have a high probability of lasting for some time or replace the roof. In some instances, our customers do not have it in the budget to either do the repairs properly or replace the roof. Often they have a replacement budgeted for the future. In the instance below the customer wanted the least expensive option to simply stop the leaks until he/she could finance a roof replacement. A quote for much more extensive repairs was provided but declined. January 20, 2015: Crew Arrives On-Site To Complete Repairs.  Originally the client had one leak on a goose neck vent. After further investigation it seams that another has started in a dryer vent. The crew fixed both the leaks with sopramastic and mesh. The customer looked at our work and was very happy with what was done. Man hours: 3 total. Materials:
  • 1 gal can of mastic.
  • 8 ft. of 6 inch mesh.
2 Ply SBS Roof Repair Edmonton
The client was experiencing leaks due to melting snow entering the building through various rooftop appliances.
Flat Roof Vent Repair
Ideally, a flat roof with this much ponding should be replaced. 
2 Ply SBS Mastic Repair
2-Ply SBS mastic being applied around the base of a ventilation unit.
Flat Roof Repair
Mastic repair around a post.
Mastic Repair
Mastic application in-progress around another ventilation unit, sealing in any cracks or exposed seams surrounding it..
Visit the following for more information on mastic roof repairs. < End of Report > CONTACT US Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. For all other areas of Canada call +1.877.497.3528 Toll-Free. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

Flat Roof Repair Edmonton – Gum Box. June 10, 2015.

Article: 2 Ply SBS Torch-On Low Slope Roof "Gum Box" Repair on Commercial Roof in Edmonton Alberta.

"Plastic pan - also called pitch pan, pitch pocket, gum box, these comprise a flanged collar placed around items that project through the roof system; the flange is properly set into the roof membrane and the pan is well filled with plastic cement; these pans are a constant source of trouble and should only be used when no other solution can be found." Source: Red Seal Roofer Program Website. February 13, 2015: Journeyman Roofer Attends for Roof Inspection.  Address 11754 170 Street Edmonton, Alberta.
The client is experiencing a small leak 15 feet in front of the front doors around an electrical conduit penetration in the roof.
The electrical conduit is two feet from the roof edge which is the highest point on the roof as the drains are in the center. I believe the leak could be leaking around the gum box which is starting to crack or where the stack is fastened to the roof. I believe the water is getting in through those holes and running back into the system.
To fix this problem we would need to first put a gum patch on the gum box and tighten up the bolts on the bracket that holds the conduit and seal around it with some good caulking.
Man hours 3 - 6 total with drive time and inspection time. Material 1 - 3 gal pail of gum. 2 tubes of tremco chalking.
Roof measurements 130 ft x 160 ft with two drain and 13 penetrations. The roof is approximately 10 years old and in good shape.
2 Ply SBS Roof
2 Ply SBS Commercial Roof in Edmonton, Alberta.
SBS Leak Area. Flat Roof Repair Edmonton - Gum Box.
SBS Leak Area. Flat Roof Repair Edmonton - Gum Box.
2 Ply SBS Leak
2 Ply SBS Leak Area.
SBS Roof Repair
SBS Roof Repair
2 Ply SBS Leak Identified
2 Ply SBS Leak Identified
  February 21, 2015: Crew Arrives On Site To Complete Repairs. This morning we stopped by to confirm were the problem area was and that we had everything for the job.
Once we got back to site and went up to the roof I could tell that the water was coming in from the gum box.  A couple of things caused the failure, first that the steel pipe had moved slightly from being pulled by the weight of the wire hanging and that the crew that installed the roof only filled the gum box up 1/4 of the top with gum and had 3 inches of bat insulation filler.  Over time the gum began to dry and crack and settle allowing water to pond inside the gum box and leak through.
So we removed the gum out of the gum box and some of the insulation and filled 3/4 of the gum box with pour-able sealer, a permanent repair for the problem.  As a precaution, we also added a bead of lap sealant around the base of the gum box so that no water could pond there and installed a bead of high quality caulking around the metal support which had bolts going right through the parapet wall with no sealer.
Materials used: I tube of tremco caulking. 1 tube of lap sealant. 1 package of pour-able sealer.
Gum Box Repair
Gum Box Repair
2 Ply SBS Leak Repair
2 Ply SBS Leak Repair
2 Ply SBS Torch On Roof Repair
2 Ply SBS Torch On Roof Repair
Repair
Repair to gum box.
  < End of Report >   CONTACT US Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

Residential Flat Roof Repair Edmonton, June 9 2015

Article: Residential Flat Roof Repair Edmonton, Alberta. EPDM Low Slope Roof Membrane.

Repair of an EPDM low slope roof on a residential home in Edmonton, Alberta. The low slope (flat) roof transitions to a pitched shingle roof. Penetrations and challenges include chimney, skylights, vents, drainage, ice damming, and insulating value on low slope. Additionally the transition between the low and steep roof systems posed challenges. Also a section on choosing the correct low slope membrane and roof assembly.
This customer had originally called us when Edmonton had set records for snow-fall in January of 2012. She had significant snow loads on her roof and the concern was that her roof may collapse. So we removed the snow from her roof and discovered significant ice damming challenges on the low slope portion.
We returned in 2013 and 2014 to do regular roof snow removal because every-time the snow built up on the roof the heat from inside her home would get to the underside of the low slope roof sheathing and cause ice damming. The ice dams would then get in between the laps of the existing roof membrane and result in leaks.
Mid 2014 she contacted us to quote on the replacement of the low slope roofing with hopes of solving the problem.
We quoted the various options for low slope roofing membranes, which included; Spray Foam (SPF), Tar and Gravel, SBS Torch-On, EPDM, TPO, PVC and Liquid Rubber.
Our standard quotations include pricing for the different options available for flat roof system membranes, a roof inspection report, a write-up on the pro's and con's of each type of system and our recommendations for your most suitable roof membrane choices.
Below is a sample flat roof quotation. The first link is a PDF download and the second is a Word Doc file download.
Our customer chose to replace her failing tar and gravel built up roof with an EPDM single ply membrane roof recovery (or retro-fit). This means that we removed the gravel and skinned the bitumen membrane off and then mechanically fastened a roof board and then fully adhered the EPDM. We also did some drain work and scupper work. Our customer did not opt for a complete removal, re-sloping with an engineered slope insulation system, or any additional R value added which could also have been done with simple rigid type insulation boards.
In early 2015 our customer had called with leaks to the low slope membrane - the ice dams were back. This is an important lesson in choosing the correct roof membrane, insulation, drainage, re-sloping and more. Had we been able to re-slope the roof and been able to add insulation value, the heat from the inside of the home would not escape and get to the underside of the roof membrane and cause ice damming. But, the customer requested the least expensive options and even though our reports (see link above for sample quotation and inspection report) explain in detail most considerations, this is the way it was requested to be done by the customer.
So this spring we returned to find the same ice damming causing issues with a now new membrane. We also found drainage issues which were expected - the roof was ponding because a re-slope was not in our scope. And there were some technical (debatable) installation tweaks that may or may not have been required. Nonetheless, we now had a new roof leaking the year after it was installed.
So of course we once again suggested the upgrade options to alleviate the issue but the customer would have nothing with that and requested we simply do the repairs and move on.
Below is an account from the crew of the type of repairs they did to try and mitigate any issues in the future (full well knowing that the prime aggravating factors are insulation value and sloping).
May 5, 2015: Crew Attends to Residential Flat Roof Repair.  We arrived on site at 9:58. We started the day with the toolbox meeting and safety documents. We then went up on roof to determine an installation plan. The scope of work we decided on and did is as follows.
Scope of Work # 1 The first step was to pull all EPDM down to flat roof from under the shingles at the bottom of the sloped roof. This reinstall was to ensure no water could be coming from the flat roof to steep pitch roof transition. We then had to remove all metal flashing from around the two skylights and chimney on the roof. Once we had all the EPDM pulled we started lifting shingles along the first few rows of the sloped roof and applied the EPDM bonding adhesive. This was done under the first couple layers of shingles and to the underside of the EPDM. We then installed the EPDM back under the shingles. Then next step was to apply a bead of water block on the edge of the EPDM under the shingles. Once that was complete we secured EPDM by screwing a piece of turn-bar down on the edge of the EPDM where the water block bead was applied.
Scope of Work # 2 The crew arrived on site at 1 pm and started working on the cricket behind the chimney.  He started by cutting a piece of EPDM 7'x3'. He then had to take the Epdm bonding adhesive and apply in the same manner as the work in scope # 1 by applying the adhesive under the shingles as well as the under side of the Epdm. Once the 7'x3' piece was installed he started working on the corners. Using quick prime and seam tape he seamed in the corners of the Epdm around the chimney.
 
WORK LEFT TO DO: -patch corners -more turn bar and water block -install and or replace shingles Roughly 6 hours of work left to complete.
MATERIALS USED: -7'x3' piece of EPDM -EPDM bonding adhesive 1/3 of a pail -screws -30 ' of termination bar - 2 tubes of water block -tube of caulking for skylights -half a tube of lap sealer for temporary seals -6 feet of seam tape - quick prime 1/8th of a pail.
Residential Flat Roof Repair Edmonton. Pulling EPDM out from under shingles.
Residential Flat Roof Repair Edmonton. Pulling EPDM out from under shingles.
Peeling back Epdm membrane from skylight curbs.
Peeling back Epdm membrane from skylight curbs.
Taking flashing off chimney
Taking flashing off chimney.
Applied EPDM Adhesive
Applied EPDM Adhesive.
Rolling EPDM back under shingles after adhesive was applied.
Rolling EPDM back under shingles after adhesive was applied.
Installed Piece of Termination bar on tup edge of EPDM (under shingles)
Installed Piece of Termination bar on top edge of EPDM (under shingles).
joining two seams of EPDM, with quick prime and seam tape
Joining two seams of EPDM, with quick prime and seam tape.
May 8, 2015: Residential Flat Roof Repair Crew Attends.
We started at 7:30 AM with a daily tool box meeting. We then got up on the roof and started shoveling snow away from work area so we could complete today's scope of work.
Scope #1. Scope one consisted of applying corner patches to the rear corners of the chimney. The next step was to apply tape primer to the EPDM surface on the corner of the chimney. We then cut 6"×6" squares of 6" covers strip  to use at the corner patch.  We applied  this piece on top of the tape primer and let it sit to cure.
Scope #2. Install termination bar for the EPDM on the front of the skylights. For this we measured and cut a piece of turn bar to fit the front side of the sky light. We then screwed (mechanically fastened) the termination bar.
Scope #3. We had to take the bottom two layers of shingles off and replace with new ones. For this we had to carefully lift the bottom rows of shingles and pry out the nails so the shingles would slide out. We then took the new shingles and installed them. This consisted of laying down the first layer and nailing in place. The next step was to put on the second row of shingles which slid under the old existing one and nailed in place half way down the first shingle we layer down. Job is complete.
Completion photo #1 of where shingles at steep pitch meet low slope EPDM membrane.
Completion photo #1 of where shingles at steep pitch meet low slope EPDM membrane.
completion photo #2
Completion photo #2.
Materials Used:
-2 bundles of shingles
-roofing nails
-8'of turn bar
-2' of cover strip
-rags
- tape primer
-screws

< End of report >

Click here to visit our local roof repair website and order a quotation for flat roof repair in Edmonton or area or contact us per below.

CONTACT US
Call our 24 Hour Emergency Roof Repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5.
For all other areas of Canada call 1.877.497.3528 Toll Free.
We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.
  Code: 10007

EPDM Roof Replacement Edmonton, June 8 2015

ARTICLE: EPDM Roof Replacement Edmonton, Alberta. Flat Roof, Residential, Single-Ply Membrane. Firestone.

A roof site report documenting the installation of a small flat roof on a residential property. We replaced the roof with EPDM membrane in Edmonton, Alberta. The old roof was a roll on built up roof. About EPDM Roofing. Ethylene Propylene Diene Monomer (EPDM) roofing is now one of the more used roof systems in North America. EPDM roofing is a single-ply roof membrane like TPO and PVC. The single-ply membranes came along more than forty years ago after tar and gravel and SBS modified torch-on. The most popular single-ply roof membrane systems in Canada are EPDM (rubber roofing), TPO (thermal plastic) and PVC (poly-vinyl). Single-ply membranes are more affordable than tradition BUR and torch on roofing systems due primarily to labor savings. Single ply roof material is also less costly, but the main savings comes as a result of installation time being less. In warmer climates, white or reflective roofs produce a net benefit for building efficiency. In colder climates (like Alberta), a black membrane such as EPDM produces a net benefit because we have more cold days than warm days. EPDM can assist with snow melt being faster and this improves overall building performance and efficiency by lessening the roof dead weight load. A dark roof will also melt ice dams quicker resulting in less maintenance due to membrane damage caused by ice and snow. EPDM also has the benefit of thermal shock durability. The EPDM roofing association states that EPDM has expansion of 300 percent. When you add the UV stability EPDM possesses to its expansion qualities it makes sense to use it in any environment. Traditional BUR and torch on SBS do not have the same expansion quality or UV stability. Tar and gravel requires pea gravel and SBS requires granules to protect it from the sun’s rays. Even TPO and PVC do not have the expansion qualities of EPDM. A significant benefit of using EPDM is that science tells us in many recent studies that in a cold climate single ply reflective roofs are prone to condensation issues – EPDM is black and doesn’t pose that issue. EPDM can last more than 40 years because of its high resistance to ultraviolet (UV) radiation according to the EPDM Roofing Association (ERA). EPDM’s resistance to moisture absorption allows it to be installed on roof systems with less of a slope than other single-plies. EPDM is also used for waterproofing reservoirs, geo-membranes, ponds and has many other uses. Choosing the Right Membrane for You. When choosing a low slope roof membrane we suggest examining the various options available on the market. Many contractors only install one or two options and are therefore not your unbiased source. Obtaining quotes from contractors that represent all system choices will help you determine which system is right for your building considering budget, performance, warranty, climate, efficiency and many more considerations. We see it all the time (the wrong choice) because we are roof repair experts - we process thousands of incoming inquiries every  year. We have seen people purchase EPDM when their roof was a high traffic area, which is not the correct membrane. We have seen large sophisticated operations in northern or central Alberta and Saskatchewan opt for a reflective membrane citing their green initiatives, which is not usually going to produce a net benefit and if you study it out will likely not hit the end goal target relating to green objectives. We have even had building operators in areas as far north as Dawson Creek or Rainbow Lake ask for a spray foam (spf) roof with a reflective covering such as polyurea on a metal roof system because their goal was to achieve waterproofing. Spray foam (spf) roofing of course will insulate but it doesn't assist in waterproofing and a reflective roof in a cold climate works against building efficiency. If you want waterproofing on a metal roof use liquid rubber in a cold climate. If you want R value then spray foam is a great option. But why pay for the insulation if you don't need it? There are many more examples. It is very important when choosing a low slope roof membrane to consult the sources and be sure it is the right system for your location and goals. Below is a report from Edmonton, Alberta that has a homeowner choosing EPDM because they wanted a better net benefit than white or cool roofing could offer. They chose a complete replacement vs. a roof recovery (retro-fit) because the existing roof assembly was not sound and there was existing moisture in the old built up roof. They did not require more R value so there was no added spray foam (SPF) or roof insulation boards to the roof. For more information on EPDM roofing visit this article from Construction Canada. http://www.constructioncanada.net/the-single-ply-skinny-on-epdm/ May 23, 2015 - Day one. Crew attends for EPDM roof replacement. 
7:30 am we started our day by going to pick up all materials needed to complete this roof . 9:30 am arrive on site . We did our daily tool box meeting for safety and then went up on the roof and started to tear up the old roof. This was not easy as there were three different roof systems on top of each other. This took 4 hours to do. Once it was fully tore up I started to replace the rotten areas with new sheathing, which wasn't much. We also had to install sheathing on the back portion of the roof.  To install the sheathing we used nails and nailed down the sheathing to the roof framing where it needed to be changed out.
Condition of the substrate on the old roof.
Condition of the substrate on the old roof.
EPDM Roof Replacement Edmonton. Old Built Up Roof before replacement.
EPDM Roof Replacement Edmonton. Old Built Up Roof before replacement.
Ripping up old roof
Ripping up old built up flat roof.
 cleaning up debris after ripping up roof
Cleaning up debris after ripping up roof.
 

May 24, 2015 - Day two on site.

8 am we arrived on site and had our daily tool box meeting. We then went on the roof and started sheathing in the entire roof. Once I got the guys installing plywood on other side of roof we went to install the EPDM on the back portion of the roof. Once that was complete we helped finish the sheathing along the parapet walls.

Once the roof was fully sheathed we then started to lay rubber on our open field. We managed to get most of it done, but we will have to return for 5 hours tomorrow to finish the roof.

Installing Sheathing on roof
Installing sheathing on roof.
Parapet wall construction for EPDM roof.
Parapet wall construction for EPDM roof.

May 25, 2015: DAY 3 completion.

We started the day with our daily tool box meeting. We went up on the roof and we started finishing the EPDM on field of the roof. We then started on the parapet walls.

When one side of the parapet wall was complete we then started on the other side of the parapet walls. When the parapet walls were done we then started to seal in the drain with form flash and install all the seam patches and corner patches also with form flash.

Once that was finished I helped the guys finish the other parapet wall. The crew then cleaned up the roof and the ground while I sealed in the other drain and corners with form flash. When the roof was complete I then put lap seal in the corners with patches and all three laps. The home owner did a quick inspection when we where finished and was extremely happy with the work.

Finished EPDM ROOF
Finished EPDM Roof.
EPDM roof installation Edmonton, Alberta.
EPDM roof installation Edmonton, Alberta.
EPDM roof membrane installed.
EPDM roof membrane installed.

The rest of the following photos are all finish product photos of the new EPDM Flat Roof.

Materials Used: EPDM. 3 cans of bonding adhesive. 1 can of quick prime. 1 can of lap adhesive. 2 rolls of 3 inch seam tape. 1 roll of form flash. 30 sheets of plywood. 1 box of nails 100. 1 box of 2 inch wood screws 500. 2 tubes of lap sealant. 10 pieces of drip edge.

CONTACT US
Call our 24 Hour Emergency Roof Repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5.
For all other areas of Canada call 1.877.497.3528 Toll Free.
We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.
    Code: 9311

Flat Roof Curb Repair, May 29 2015

Article: Flat Roof Repair Edmonton. Delete Rooftop Curb, Roof-In Curb, Roof-In Sleepers, Gum Boxes. Tar and Gravel. Stramit. Edmonton Alberta.

March 13, 2015: Roof Inspection and Report Completed. Flat Roof Repair Edmonton. Site Location: 10625 51 Avenue NW Edmonton, Alberta.
We arrived on-site at 10:30 to take a look at the BUR roof that needs a 2 x 2 foot vent curb deleted, and another new curb installed a few feet NW of the old curb. Then he would like us to install 2 sleepers on the roof and tie back into the membrane with 2 gum boxes to be installed as well, one for a gas line and one for a electrical line to go through the roof. This a single story with easy access all around the building. We did a cut test and found that the roof is made up of a 3 inch structural stramit with 2 layers of 1/2 inch fiberboard and mopped on felt. Stramit is a structural and/or insulating panel manufactured from straw fibre typically in 50mm or 64mm thickness used as roof deck and/or insulation. The problem with this kind of roof is that the vapor barrier is skin of the stramit and comes in 4 x 8 sheets. This means that any patch would have to be at least to the nearest roof truss and be supported with 2 x 4 boards under the cuts of the stramit opening. Now for any warrantied work, you should tie in the stramit vapor across the patch and this needs to be done from underneath after the patch is applied. This would also require a 3 x 3 foot hole to be cut out of the ceiling and should be handled by the client ahead of time. The other option is to replace a full sheet of stramit which may include a new complete tie-in around the next curb beside it depending on the layout of the stramit and would open a whole other potential problem. We could just cover the hole with 1 inch plywood, no insulation, glue a peal and stick and torch cap the BUR, but I would not suggest warranting this kind of repair especially right on top of a large commercial stove. Another issue on the roof is the amount of grease that has been dumped on the roof will require a larger patch since the membrane close to the curb will not support a proper tie-in of 2 ply torch patch. This will require a 4 ft area of membrane and spud roof beyond the patch all the way around. With a repair with the least amount of stramit replacement and a vapor barrier, we would need the following material to complete the work: 1 - 4 x 8 sheet of 1 in plywood. 2 rolls of cap. 2 rolls of torch grade peal and stick. 1 - 5 gal can of SAM adhesive. 1 sheet of 3 inch ISO. 8 - 2 x 6, 10 ft boards to stacked and secured to the roof. 2 - 2 x 4, 8 ft boards to support the stramit. 2 - 4 inch gum boxes. 1 pail of gum. Assorted screws. 1 can of spray primer. 4 pain brushes. 2 roller sleeves. 2 tubes of acoustical sealant. 1-  6 x 6 ft pieces of 6 mil ploy. 32 man hrs and a trip to the dump for the garbage for a total of 36 man hours or so. If the new curb is not prepped ahead of us then we will need another sheet of ISO  insulation (size to be determined by flange of curb) and plywood to wrap the curb. We would need this information before going to site to make sure we have enough to complete. This will add another 2 man hrs if we have to do this on site. If there is no ceiling access when we are there then add another 3 man hours to cut out and clean up. The new R.T.U. to be installed on the sleepers needs to be installed to maximize the weight distribution over the trusses under the roof and needs to be spotted from underneath along with the new location of the new vent curb and location of the gum boxes before we go to site.
Tar And Gravel Repair
Tar and Gravel Roof Repair - photo showing stramit.
Tar And Gravel Repair Unit
Tar And Gravel Repair - Rooftop Units.
Tar And Gravel Repair Leak Identified
Tar And Gravel Repair Leak Area Identified - Grease on roof from commercial kitchen.
Tar And Gravel Repair Strammit
Tar and Gravel Stramit in roof assembly.
Unit From Inside
Unit From Inside in commercial kitchen.
  March 13, 2015: Update. Scope of work discussion with client.
The client just texted me back and requested another 2 curbs, 1 for an exhaust vent and 1 for an intake vent for the RTU to sit close to the sleeper which would add another 8 man hrs to the job and that he has requested that we wrap all 3 curbs with ISO and plywood which brings us up to 40 man hrs for 1 deleted curb, 3 new curbs to be installed and wrapped, 2 sleepers, 2 gum boxes.
March 18, 2015: Update. Scope of work change.
Client has requested a change in scope. Customer wants two curbs roofed in holes cut and framed in and 2 sleepers installed after looking at his drawing and where the placement of holes are I do not think we will have to cut any trusses. The holes will be in between. The one thing that concerns me is the amount grease on the roof. Material list looks good but as for man hours I'm thinking more like 45 man hours or more.
March 31, 2015: Flat Roof Repair Crew Attends to Site. 
Today we deleted an old unit and added two curbs for new units. This was a difficult task as the roof is really old and quiet frankly falling apart. There was also a section 6 feet x 7 feet that we had to remove because the grease from the grease trap had saturated the roof. Once we got that all cut out and insulation and ply wood replaced we then roofed in the curbs and replaced the grease section.
All that is left to do is torch cap on the curbs and then add two sleepers and roof them in.
On a side note there are multiple areas around where we added the curbs that we are positive leak. There are splits in the roof and major blisters. I pointed this out to the customer. I documented the deficiencies.
Tar And Gravel Leak Repair
Tar And Gravel Leak Repair - deletion area.
Tar And Gravel Repair
Tar And Gravel Repair - deletion.
Tar And Gravel Repair During Work
Tar And Gravel Repair During Work - rooftop curb installed and roofed in.
Tar And Gravel Repair Around Unit
Tar And Gravel Repair Around Unit - 2 ply SBS modified torch-on applied to roof curb.
Tar And Gravel Repair With SBS
Tar And Gravel Repair With SBS modified torch-on.
Tar And Gravel SBS Repair
Tar And Gravel SBS Repair. Rooftop curb.
  Other On-Site Photos:
April 4, 2015: Flat Roof Repair Crew Attends to Site.
Installed cap on two curbs and installed two sleepers 48 inch wide and roofed them with base and cap. Installed gum around our spud line to insure no back flow of water. Cleaned up site and loaded all garbage and materials in the truck. Completed fire watch protocol.
< End of Report >
You can find more information on our main website for flat roof repair and how to extend the life of flat roof systems.
CONTACT US:
Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5.
  We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

Tar and Gravel Roof Repair, May 29 2015

Article: Tar and Gravel Roof Repair Edmonton, Alberta. Flat Roof - Commercial. Emergency Dispatch. Repair to Splits, Blisters, Pitch Pockets.

March 29, 2015: Emergency Roof Repair Dispatch Call-In. Tar and Gravel Roof Repair Edmonton. This call was patched to our project manager as an emergency call-out. Our client, a management company that handles maintenance for commercial properties asked that we attend asap. One of our advantages in the roofing industry is our ability to respond 24 hours a day 7 days a week to any type of roof repair emergency. This particular emergency call-out was for a tar and gravel roof. Tar and gravel built up roofs have one advantage in that usually we can repair them almost indefinitely. As long as the maintenance inspections are done regularly and repairs done each year then chances are you will avoid having the roof become saturated with moisture. If too much of the roof assembly becomes saturated with moisture then it becomes impossible to repair tar and gravel roofs. Visit this link for a flat roof maintenance check-list and be sure you inspect your roof at least once a year or even twice a year with an expert. Below you will find the rooftop inspection and on-site roof repair work summary and photos. March 29, 2015: Roof Inspection and Report Completed. 
Site Address: 13040 137 Ave Edmonton Alberta T5L 5E3.
Property Type: Commercial Property.
This location is experiencing two primary roof leaks. One leak is on the east side of the building. The other roof leak is on the west side of the building.
When we attended to the roof we found a number of splits in the tar and gravel roof membrane. We also located a number of blisters. There are also two pitch pockets that need to be topped up as a matter of regular maintenance.
Scope of Work:
Scope of work to repair the roof would include gum patches to the splits. Also to cut open the blisters and patch them. And finally topping up the pitch pockets.
Man hours to complete = 16 total.
Material needed:
3 pails of gum.
1 spool of mesh 6 inch.
Miscellaneous other repair materials.
Tar And Gravel Gum Box
Tar And Gravel Gum Box (pitch pocket).
Tar And Gravel Roof Split
Tar And Gravel Roof Split.
Tar And Gravel Split Needing Repair
Tar And Gravel Split Needing Repair.
Tar And Gravel Repair Needed
Tar And Gravel Repair Needed - split in the membrane typically due to aged membrane and drying from UV exposure.
Tar And Gravel Split
Tar And Gravel Split in roof.
Tar And Gravel Repair
Tar And Gravel Repair.
 
April 4, 2015: Flat Roof Crew Attends To Repair Leaks. 
Even though only two leaks were reported inside the building there were a number of repairs required at roof level.
Today we fixed 12 problem areas on the roof that were a significant concern. We also filled up 2 pitch pockets. All repairs were gum patches on the tar and gravel roof.
Tar And Gravel Repair Leak
Tar And Gravel Repair being done with mesh and mastic.
Tar And Gravel Repair Being Done
Tar And Gravel Repair in process. Areas was spudded, cut open, dried out, mesh and mastic applied and roof pea gravel returned to roof.
Tar And Gravel Repair 1
Tar And Gravel Repair.
Tar And Gravel Repair Completed
Tar And Gravel Repair Completed.
Tar And Gravel Repair With Mastic
Tar And Gravel Repair With Mastic and Mesh Completed.
Tar And Gravel Repair
Tar And Gravel Repair in process.
Tar And Gravel Gum Box
Tar And Gravel Gum Box
  Article Topics: Tar and Gravel Roof Repair Edmonton, Roof Maintenance.   CONTACT US Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

High River SBS Roof Replacement, October 2014

This commercial client required a roof replacement and elected to have GRS install a 2-ply SBS Modified Bitumen system. This was done in High River, AB, far to the north of the province.   Roof Report: October 24, 2014 The team arrived on site for 9am and began to get it prepared to commence work the following day. Material lists were organized and ready for purchase, and the tools were loaded onto the roof. The crew waited for the dump bin to arrive, and once it had they went off to the store to pick up the last of the materials needed for the job's beginning. They ended the day for 3:00pm, leaving the job site for the evening.   Roof Report: October 26, 2011 The four team members arrived for 8:00am and worked for a few short hours until 11:30. In their time on site, they stripped off the torch-on system and moved materials to the side of the roof where they would begin work the following day. The weather forecast called for heavy snow, and ice crystals were building on the roof even after torching. They called it for the day at 11:30am, and would return the following morning.   Roof Report: October 29, 2015 Starting the morning at 7:30, the team got to work with chipping away ice, blow-drying the roof, and cleaning it off for work. Once done, they got to stripping outer walls, putting up around 25' of fascia, and stripping the parapet walls too. They installed two high domes and starting putting more capping on. Heavy snowfall came in just before 5:00pm, so the team wrapped up the site for the day.   Updated Quotation Delivered: October 30, 2014 We sent over an updated quote to the client to show payments that had been applied to date. There was some uncertainty remaining about the amount of sheathing requiring replacement, so the final quote was yet to be confirmed.   Roof Report: October 30, 2014 This day saw a lot of ice chipped away and snow swept off of the roof. They team torched the capping and installed scupper drains and the necessary downpipes. They left the job site for 4:00pm once word arrived that some more of the materials for the job site on order had arrived. They got the materials and returned to the town; an 8-hour round trip. Roof Report: October 31, 2014 There was some light rain in the morning, but not enough to cancel the day's progress. The rest of the roof system was ripped off and the rotten plywood underneath replaced. The last scupper drain was installed, and some more of the parapet wall was stripped. Once done, the last of the capping was torched on and materials were moved and prepared for the next day. After clean-up, the team departed the site for around 5:30pm. The day's efforts saw 25 sheets of OSB plywood 7/16 installed, which allowed for a final quote to be delivered to the client as everything that would be exposed and inspected had been so. High Level-20141031-03223 High Level-20141025-03127       Roof Report: November 2, 2014 This day, the team met on the roof for 8:00am and got to work. Their task for the day was working on getting the enco new paper was completed, and the job site was cleaned up afterwards. They left the site at 1:00pm, another job completed.     CODE: 10006 Contact Us Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

Edmonton Commercial Flat Roof Repairs, February 2012

This client required repairs to their flat roof, and contracted GRS to carry out the service. We arrived for an investigation and were met with a roof report assessment from a year ago - many of the third-party's investigative findings stand true, and gave us an idea of the scope of work to complete. Inquiry Received: November 15, 2011 The client first called in looking for a quote or estimate on repairs that needed to be carried out on their flat roof system. We scheduled them in for a visit a few days later so that we could perform an investigation on areas needing repair. Investigation: November 17, 2011 We sent a technician out to the job site to investigate the client's identified areas for improvement. They presented a report conducted a year ago (via third party), giving the technician an idea of where to examine. Going up to the roof to double-check all of the locations, it seems like the problem areas still need to be addressed. That concluded the investigative stage, and we prepared to deliver a quotation. Quotation Delivered: November 26, 2011 After reviewing the third-party roofing report and undertaking our own investigation to corroborate their findings, we delivered a quote to the client for their consideration. The scope of the work covered the following (referencing scans from the report):
Add granular to cap sheet affected areas.
Add granular to cap sheet affected areas.
Adhere cap sheet to base sheet at North end of unit.
Adhere cap sheet to base sheet at North end of unit.
Check all seams and bond all failing seams of SBS Modified cap sheet.
Check all seams and bond all failing seams of SBS Modified cap sheet.
Granulated SBS cap adhere to drain lead.
Granulated SBS cap adhere to drain lead.
Fasten metal flashing (if not already repaired).
Fasten metal flashing (if not already repaired).
Fasten metal flashing (if not already repaired).
Fasten metal flashing (if not already repaired).
Apply gum filler to crown box.
Apply gum filler to crown box.
Type IV insulation adhered to sleeper, and sleeper to the gas line.
Type IV insulation adhered to sleeper, and sleeper to the gas line.
Outfit the chimney vent pipe with a storm collar and caulking.
Outfit the chimney vent pipe with a storm collar and caulking.
Photo 10
Clear the vegetation from the drain.
Install insulation and flashing to the curb as required.
Install insulation and flashing to the curb as required.
Install a new drain to alleviate ponding.
Install a new drain to alleviate ponding.
  Roof Report: February 23, 2012 The team arrived on site to work on the problem areas of the roof. One of the client's employees showed them the roof access hatch and left to continue with their work. The equipment was loaded onto the roof; safety equipment was checked and fully functional. One of the team members got to working on topping up the gum cups (five in total). The other member used their torching trowel to check all of the seams on the upper level. They are in good condition, as is the metal flashing. With that inspection carried out, the team departed the site briefly to procure some materials (storm collar, caulking, etc.). They returned to install the storm collar and seal it with caulking, then moved on to the lower section of the roof. One of the crew cleared the drain of debris, but snow, ice, and water build-up on the lower roof prevented further progress. This site will have to be revisited once the lower roof is dry and the weather is cooperating. Edmonton 023 Edmonton 022 Edmonton 021 Edmonton 020 Edmonton 019 Edmonton 018 Edmonton 017 Edmonton 016 Edmonton 015 Edmonton 014 Edmonton 013 Edmonton 012 Edmonton 011 Edmonton 010 Edmonton 009 Edmonton 008 Edmonton 007 Edmonton 006 Edmonton 005 Edmonton 004 Edmonton 003 Edmonton 002 Edmonton 001     CODE: 10425 Contact Us Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.