EPDM Roofing Installation, August 2015, Edmonton

GRS undertook a project re-roofing a large commercial unit with an EPDM roofing system. Everything was brought in and installed with exacting detail from the FR boards to the metal flashings and detail work. Continue reading EPDM Roofing Installation, August 2015, Edmonton

Commercial SBS Flat Roofing Recovery Edmonton, June 2015

Article: Flat Roof Recovery Edmonton, 2 Ply SBS Recovery Flat Roofing, Commercial.

Below you will find a report from the flat roofing crew regarding the recovery of a tar and gravel flat roof to 2 Ply SBS membrane. November 6, 2014: Tear-off Crew Arrives for Gravel Roofing Removal and to Load Material. 
Roof Tear Down
Roof Tear Down
January 23, 2015: Crew Continues Laying Down Base.
Recovery SBS
Recovery SBS
SBS Roof Recovery
SBS Roofing Recovery
2 Ply SBS Base
2 Ply SBS Base
SBS Base
SBS Base
February 12, 2015: Crew Continues Roofing.  This morning after we were done with the safety reports, we went to the upper roof and continued with the base seal tie in. I had the labourers remove snow from the entire upper roof while I started to install peal and stick to the roofing curbs. After I was done with the curbs on the north side of the roof, I installed patches over the plates and installed gussets were there was none. I also found several spots that needed patches in the field and repaired as required.
Recovery With SBS
Roofing Recovery With SBS
2 Ply SBS Recovery In Progress
2 Ply SBS Roofing Recovery In Progress
Base Laid Down
Base Laid Down
SBS Recovery
SBS Roofing Recovery
  March 12, 2015: Crew comes back to complete final touches on roof. Roofing recovery completed. We spent extra time on resetting all the wire tracks on the upper roof and finished off the storm collars with caulking as well.  Two of the 18 inch stacks still have no storm collars but we filled with caulking any way.   With no metal flashing on the wall detail on the upper roof, we made sure that water would not pond there and completely filled the ringlet with caulking and should hold. At the end of the day we downloaded the rest of the tools and but rolls of base and propane into the small trailer and parked it in the very NE corner of the parking lot.  The bin is still on site and needs to be removed.
2 Ply SBS Completed
2 Ply SBS Completed
2 Ply SBS Recovery Edmonton
2 Ply SBS Roofing Recovery Edmonton
2 Ply SBS Roof Recovery
2 Ply SBS Roofing Recovery
2 Ply SBS
2 Ply SBS Roofing
< End Report > Article Topics: Flat Roof Edmonton, Recovery, Commercial, Torch-On SBS Modified Bitumen. 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 Roofing Photo Gallery

Photo Gallery of Edmonton Commercial Roofing Project Roof Load. EPDM Ballasted Roof Replacement.
Edmonton Commercial Roofing
Edmonton Commercial Roofing - Loading EPDM to rooftop.
20150603_134951 20150603_135002 20150603_135013 20150603_135019 20150603_135143 20150603_135218 20150603_135228 20150603_135248

EPDM Membrane Flat Roof Commercial Re-Roof Edmonton June 10, 2015

ARTICLE: EPDM Membrane Re-Roof of Commercial Building Flat Roof Edmonton Alberta June 10, 2015.

The following roof report is of a GRS crew completing a full re-roof on a commercial building in Edmonton Alberta. This roof was 8600 sq. ft in size.  This consists of moving gravel from sections of roof.  Installing a new EPDM membrane to the surface of the roof.  Then covering the new EPDM membrane back up with the gravel. CREW ARRIVES FOR DAY ONE OF THE JOB. 10:00 am arrive on site. Filled out our hazard assessment form, then went up on the roof. We loaded our accessories on the roof with a rope, the main roofing materials were lifted with crane. Once it was all loaded, we started to move gravel on the right side of the roof. My original plan was to remove gravel in a 20' x 50' ft. areas on the roof. I changed my plan and just removed all the gravel from one side of the roof. That way we could just roof all weekend, rather then push gravel again tomorrow.  We managed to get all the gravel from one side of the roof to the other. Now have a nice chunk to roof in over the weekend. 5:00 pm leave site. DAY ONE PHOTOS.
Gravel we had shovel
Roof ballast rock we had to shovel to get at roof deck.
shoveld Section oF Roof.
Cleared section of roof.
Another shoveled off section of roof.
Another cleaned off section of roof.
  CREW ARRIVES FOR DAY TWO OF JOB. 7:00 am arrive on site. Had our daily tool box meeting. We then got up on the roof and started to cut the old EPDM membrane out. We Then laid down the new EPDM membrane. The way the lay-out worked was we had to put separate pieces up the parapet walls on the north side. If I didn't do it this way I would of ran into trouble with all the pitch pockets. We manged to put 2000 sq. ft. in today.  Most of the units we had in that area are all sealed in and form flashed on the corners. We did this with four guys. Tomorrow should go better with six. 6:30 pm leave site. DAY TWO PHOTOS.
Corner patches and EPDM seam complete .
Corner patches and EPDM seam all finished.
Large section of EPDM Membrane Finished. with finished Parapet walls in background.
Large section of EPDM membrane installed, with parapet walls in background.
Finished product of EPDM Membrane Flat Roof.
Finished section of EPDM membrane flat roof.
corner patches on a roof top unit.
Close up of corner patches on a roof top unit.
  WEDNESDAY JUNE 10, 2015 CREW ARRIVES FOR DAY THREE OF JOB.

7:30 am arrive on site. Had our daily tool box meeting. Today we had a crew of six guys working on the roof. So all six of us then got up on the roof. I had two guys start doing detail work while I had two other guys start putting in pieces of EPDM membrane under the rooftop make-up air duct work. This wasn't easy because we could only do 15 feet at a time. The reason for this was we had to jack up the air duct and remove the rooftop pavers. We then had to put them back in once we got the piece lined up my work partner and I were laying the field - which is a lot of measuring and cutting to get the pieces to fit in around all the units. I had a half day on the north side of the roof which is the difficult side of the roof due to all the units and penetrations. We then will move to the south side, which will be easier side because there is very little detail work on that side of the roof. The EPDM membrane re-roof  is 50% complete as of day three.

6:30 pm leave site.

DAY THREE PHOTOS.

Detail work, more corner patches .
Detail work, corner patches on a rooftop unit curb.
EPDM Membrane laid out and finished under the air unit duct work.
EPDM membrane laid out under the air unit duct work.
 EPDM Membrane work around air duct unit.
Close up of EPDM work around air duct unit.
 Laid out EPDM Membrane on the field of roof.
EPDM membrane we laid out in the field of roof.
Laying out EPDM Membrane on the field of the roof.
Starting to lay out EPDM membrane on the field of the roof.
  THURSDAY JUNE 11, 2015 CREW ARRIVES FOR DAY FOUR OF JOB. Today we had to finish the north section of the roof. We had to install the two last pieces of EPDM and roof in around three units. While myself and two others were doing that I had two other guys start gluing up the walls. At 2 o'clock there was a serious threat of rain so it was all hands on deck to get the exposed long lap sealed in around all the posts. We also had gum cups to do, which we managed to get done in just  the nick of time. DAY FOUR PHOTOS.
Installing last two pieces of EPDM.
Installing last two pieces of EPDM.
Finished EPDM Flat Roof(without gravel)
Finished EPDM flat roof (without rock ballast).
Finished EPDM Flat Roof with walls all glued in.
Finished EPDM flat roof with walls all glued in.
  FRIDAY JUNE 12 CREW ARRIVES FOR DAY FIVE OF JOB.

When we arrived first thing in the morning we had to clean up some water from the rain the night before. After that I started on lap sealant where it was required and did a search of all the laps and corners to make sure they were all tight before we put all the rock back on that side of the roof. Once inspection was done we then put all the pavers back where they were before we took them out, we then filled in with gravel. Once the gravel was back in place we then turned our focus to the south side of the roof. We removed  80% of the gravel so we can start to lay EPDM down in the morning. This shouldn't take that long once the new membrane is down. I will get guys on gravel right away while others glue up the walls and start detail work.

DAY FIVE PHOTOS.

Gravel laid back in, with pavers re-insatlled.
Gravel laid back in, with pavers re-installed.
Installing pavers, before we started to lay gravel back down.
Installing pavers, before we started to lay gravel back down.
South side of roof, after we cleared off gravel.
South side of roof, after we cleared off gravel.
 

Monday June 15th: Crew Arrives For Day Six Of Job.

Today we we cleared off the gravel on the s.w corner of the roof. The area was 20 x 110 feet. Once that was done,  we swept the area off  and laid out our first run of EPDM 10 x 100 ft. Once that piece was all installed I had one worker start the next run of EPDM 10 x 100 ft so he could start on the seams.  I then had another worker start on the walls while I was doing the details around the drain and post. At the end we started to put the gravel back on that section of the roof so we could start the next section the next morning.

Day Six Photos.

Moving gravel from SW corner of building.
Moving gravel from SW corner of building.
Detail work around posts
Detail work around posts.
Detail work around rooftop drain.
Detail work around rooftop drain.
  Tuesday June 16, 2015: Crew Arrives For Day Seven On Job. Today we started by moving the rest of the gravel off the SE portion of the roof so we could then lay down the last two pieces of the EPDM membrane. Once all the gravel was moved we laid in the 2 pieces of EPDM 70 ft by 10 ft. Once they were in we installed our seam tape and started our laps on the EPDM. Once the final pieces of EPDM were installed and complete I had a worker finishing the walls and I was finishing all the detail work. At the end of the day we put all the perimeter metal back on and spread all the gravel out. We then packed up all of our stuff and down loaded it off the roof to the truck and trailer. This job is now complete. Day 7 Photos.
Seams all finished On EPDM Membrane
Seams all finished on EPDM membrane.
Finished section of roof.
Finished section of roof.
Finished section of flat roof, with gravel all back on.
Finished section of flat roof, with gravel all back on.
Parapet walls on complete EPDM Roof.
Parapet walls on complete EPDM Roof.
  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: 9110.

Commercial Roof Recovery for Existing Client in Edmonton AB, April to June 2015

Below you will find a series of quotations for an existing commercial client. We had previously dealt with some leaks for them as outlined here. This time, the client required a roof recovery for a 28 ft. x 44 ft. garage. Client files request, April 20 2015:
I know that you quoted on the small garage, we would like another quote that requires the following: layout, retrofit, TPO roof, no asphalt.
Quotation, April 20 2015:
  • Layover, remove stone.
  • Install new 2 in. polyisocyanurate and 0.45 mm TPO membrane.
  • New flashing is required all around to match the front of the building.
Assessment, June 22 2015: We arrived at 8:00 am and searched for roof leaks around the unit for two hours. With no luck, there was still the remaining task of installing the last drain unit over another one of the units which needed work. The roof on the second building is a 28 ft. x 44 ft. BUR roof on a wood deck that leaks in too many places to fix. One drain on the northwest corner and three other penetrations, as well as two vents and a motor exhaust are going through the roof. There is a 4 in. wood detail around the edge and one scupper. We suggest an EPDM roof recovery. The maintenance manager for the site also gave us a call to tell us that a leak was found on the west wall of the building. The crew found numerous rips in the roof along the membrane; it had been completely separated from the drain.

Materials:

  • 5 ft. of cap
  • 5 ft. of base
  • 1x can of spray primer
  • 1x 3 in. drain
  • 1 can of mastic
  • 1x roll of 6 in. reinforcement mesh
New quotation based on assessment, June 22 2015:
  • Gum patches to three or more areas
  • Replace the drain with a new 3 in. unit
  • Roof replacement using an SBS 2 ply system
  • Estimated time: 20 hours
< End Report > Code: 128 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 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.

Commercial Roofing Sherwood Park. June 15, 2015.

Article: Flat Roof Replacement (Recovery). Commercial Roofing Sherwood Park, Alberta.

The roof report below is a commercial roofing project in Sherwood Park, Alberta. It was a liquid rubber flat roof replacement (recovery). We also installed pitch pocket extensions, caps for pitch pockets, and grease trays on the roof. Commercial Roofing Sherwood Park. There were two primary challenges with this flat roof system. The first was that the rooftop units could not be shut down as the restaurant below needed them. And the second challenge was doing roof maintenance with-out removing units in such a small confined space. The decision was made to coat the flat roof with a liquid rubber coating instead of attempting spot repairs. This would enable repairs to be done with-out disrupting the business operation. We also extended pitch pockets, capped pitch pockets no longer in use, and installed proper grease trays so that the grease didn't break down the roof membrane. July 7, 2014: Crew Arrives On Site For Commercial Roof Pre-Install Meeting.  Site Location: 194 Ordze Avenue Sherwood Park, Alberta. I met with the client and did a pre-install meeting with him. I took all my measurements for pitch pocket extensions, new grease trays and caps for obsolete pitch pockets. I then went to the shop to get the metal fabricated. They will be done tomorrow late afternoon. This roof might take me two days - there is a lot of prep work and a lot of metal that has to come off and then be put back on to get the job done right. July 8, 2014: Crew Arrives at Commercial Roof Site To Complete Prep Work.  When we arrived on site we loaded our tools to the roof and started taking off the loose gravel (which was really excessive and coated in grease). After getting gravel off the roof we spud-ed out about a quarter of the roof but the hotter it got the spud would just wreck the roof so I notified project management of this and our customer. I informed our customer I would be back when temperatures cooled down with in a week or so and customer was fine with this. July 11, 2014: Crew Arrives Back On Site.  Today we finally got the roof spud-ed and it wasn't easy but we got it done. After that we cleaned the roof by hand cause I didn't want to use pressure washer on roof with customers walking nearby and vehicles in parking lot. But by the end of the day we got about 50% of our mesh on our detail and all the holes patched the job is 75% complete all that is left is finish around the unit then roll our rubber out and get the garbage off the roof. Site will be complete tomorrow.
Commercial Roofing Sherwood Park - Earls Restaurant Sherwood Park, Alberta
Commercial Roofing Sherwood Park - Earls Restaurant Sherwood Park, Alberta
Mesh Along Metal with liquid rubber.
Mesh Along Metal with liquid rubber.
Roof Spuded and prepped.
Roof Spud-ed and prepped.
Penetrations Sealed
Penetrations Sealed
Prep Work
Prep Work
  July 12, 2014: Crew Arrives On Site To Complete Liquid Rubber Recovery. Today we finished our prep work around the units, then we installed our pitch pocket extensions to 6 inch. While Ray and I rolled the roof I had the other guys download all the garbage to the truck to take to the dump. After first coat dried we applied a second coat. Material used. 3 pails of brush grade liquid rubber. Half pail of trowel grade liquid rubber. 1 can Sopra mastic. 120 ft of 6 inch mesh. 4 paint brushes. 2 rollers.
Liquid Rubber Flat Roof Recovery
Liquid Rubber Flat Roof Recovery
Liquid Rubber Flat Roof
Liquid Rubber Flat Roof
Liquid Rubber Roof
Liquid Rubber Roof
Liquid Rubber Recovery
Liquid Rubber Recovery
Liquid Rubber
Liquid Rubber
  August 5, 2014: Crew Arrives To Install Patio Stone Walkway.  The crew installed 11 patio stones with high dense foam underneath for a walk way to service units and grease traps.
Patio Walkway
Patio Walkway
Patio Stones
Patio Stones
Walkway Installed
Walkway Installed
  Article topics: Commercial Roofing Sherwood Park, Alberta.   < 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 other areas of Canada call us at 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.  

Commercial Metal Roof Repair Edmonton, June 15, 2015

Article: Liquid Rubber Coating Spot Repair to Commercial Metal Roof.

The report below is a metal roof inspection with recommendations and temporary repair and maintenance of a commercial standing seam metal roof in Edmonton, Alberta. The Product used for the repairs was liquid rubber. Commercial metal roofing systems require constant maintenance and repair to keep them from leaks. Depending on the slope (the higher the slope, the less leaks usually), the type of metal seams, age of roof and the initial installation quality your roof may need more or less repair or maintenance. For aggressive repair and maintenance of a commercial metal roof we would recommend a complete coating. For roofs that aren't leaking too badly we can do spot repairs. Sometimes roof penetrations can be replaced properly or even the fasteners can be replaced to stop leaking. There are different maintenance steps we can take dependent on the specific challenges. As far as the type of caulking or coatings we recommend... liquid rubber in Canada has been an excellent product for us and our clients. There are many products available on the market from the USA, but in most instances they peel and crack and do not last very long due to the harsh winters in Canada. The combination of a proper seam tape and liquid rubber will usually deal with any metal roof leaks you have. Visit the following link for scope of work used for various liquid rubber metal roof repair and maintenance.   July 29, 2014: Roofing Crew Arrives For Metal Roof Inspection. They are getting leaks from units on the roof as well as three big hood vents coming through the wall. The caulking has let go and would need be removed and resealed plus mesh the sides of them. There are 6 units and 10 penetrations on the roof - they would like them all sealed with mesh and liquid rubber. We would be looking at 40 to 50 man hours to complete job.
Leaking Around Rooftop Unit Curb
There had been leaking around a rooftop unit curb, caused by residual standing water draining towards the unit.
Leak Identified at wall cladding where it meets low slope metal roof.
Leak identified at the wall cladding where it meets the low slope metal roof.
Leak Around Unit
Another rooftop unit adjacent to the edge of the roof whose detailing was identified as being a leak entry point.
Metal Roof Leaking - Commercial Roof Repair Edmonton. Metal.
Inspecting for common leak points at the wall connections and around the remaining units.
  August 6, 2014: Crew Arrives To Complete Repairs.  Today we had to remove old roof caulking from the hood vents and also around some spots around the units after we did that. We cleaned them and applied seam tape and then applied our liquid rubber. We applied two coats of liquid rubber to all. As for the hood vents, we removed all old silicone and applied new caulking and sealed in the sides with seam tape and liquid rubber. I also sealed in the caulking with liquid rubber for extra protection for all rooftop units, vents and penetrations. The roof leak issues are sealed 100% and site is 100% complete. Material used. 1.5 pails of brush grade liquid rubber. 3 rolls of seam tape. 5 tubes of chalking.
Liquid Rubber Around Vent
Liquid coatings around the base of a plumbing vent and over some exposed flashing seams.
Liquid Rubber Repair at wall cladding area.
Coatings applied over a wall cladding area around a vent. 
Liquid Rubber Penetration Repair
Our coatings also extend around all roofing penetrations and standing seams which exhibit signs of deficiency (i.e. exposed, tearing, etc.).
< 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 us at 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.

Edmonton Flat Tar and Gravel Roof Repair, June 8 2015

Article: Flat Roof Repair Edmonton, Alberta. Tar and Gravel. Commercial.

Inspection and repair of commercial tar and gravel flat roof repair in Edmonton, Alberta. Repairs include a rooftop vent, a B vent stack, make-up air unit curb, and a split in the tar membrane.

Flat roof repairs are required on every commercial and residential low slope roof - that is an unfortunate reality. However, repair costs can be mitigated through regular preventative maintenance.

Visit our main website for a flat roof maintenance checklist.

Tar and gravel flat roofing is a type of low slope roof that can be repaired almost indefinitely if regular maintenance is done to the roof.

We recommend that inspections should be done every spring and fall. In spring to ensure that the winter cold hasn't caused damage that needs to be repaired before spring rain showers and in the fall to ensure the roof is in water-tight condition for winter months.

Performing regular maintenance inspections and doing any repairs required (in a preventative manner) will lessen the cost of repairs, damage to the interior of the building, and this will also extend the life of a tar and gravel roof at least 50% (if not more).

The report below includes a split in the tar membrane and other minor repairs which could have been avoided (or at least mitigated) through regular maintenance.

May 9, 2015: Customer Calls in to Call Center.

This customer works for a large commercial property management company in Edmonton. She has come to rely on our emergency roof repair dispatch quite regularly.

In this instance she had a tenant moving in to a strip mall location. The tenant was doing leasehold improvements on the interior at the time of the leaks. So needless to say, the tenant wasn't impressed.

May 9, 2015: Roof Repair Crew Attends to Roof.

Site Location: 12611 153 Ave Edmonton Alberta.

Roof Type: Tar and Gravel Flat Roof

Location Type: Commercial Strip Mall

Emergency dispatch. Our customer was experiencing a leak that was terminating on the ceiling inside directly below a make-up air unit. The scope was to find any source of the leak and repair it. I found four spots of concern for repair and regular maintenance.

Roof Repair # 1.

The first repair to be done was around a B-vent that was starting to lift from the base of the flange where it ties into the roof. I spudded the BUR membrane around the B-vent and installed a roof gum patch on it using mastic and mesh.

Flat Roof Repair Edmonton. Gum patch with mesh around roof B-Vent.
Flat Roof Repair Edmonton. Gum patch with mesh around roof B-Vent.

Roof Repair # 2.

The second repair was the make-up air unit itself. I located a previous gum patch 1 foot around the unit. I spudded the old gum patch out and also went another 1 foot beyond that to ensure a good seal. I gummed up on to the metal and meshed out 2 feet from metal on to roof and them sealed with mastic.

Applying mastic around perimeter of make up air unit
Applying mastic around perimeter of make up air unit on tar and gravel roof.
finished patching job
Finished patching job photo around make-up air unit.

Roof repair # 3.

The third repair was a deleted vent that I didn't see anything wrong with it but it was close to where leak was so just to be sure I fixed it with mastic and mesh. I spudded out the area and put one coat of mastic then used mesh to seal the vent to the roof then one more coat of mastic.

Deleted vent that may have been cause of leak.
Deleted vent that may have been cause of leak. Completed repair.
Repair in progress - roof spudded.
Repair in progress - roof spudded.

Roof repair #4.

The fourth leak area was a seam that was starting to split and the seam was running into the make up air unit where the leak was located below on the ceiling of the location. I spudded it all the way up 11 feet total then used mastic and mesh to seal it in.

Finished repair after using mastic to patch a crack in the roof.
Finished repair after using mastic to patch a crack in the roof.
Split in roof membrane that had to be patched.
Split in roof membrane that had to be patched.

Man hours to complete = 4.5 hours x 3 men for a total of 13.5  hours.

Material used: 2 cans of mastic. 1 roll of 6 inch mesh.

< 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.
 

Torch-On Roof Replacement High Level, June 4 2015.

Article: 2-Ply SBS Modified Torch-On Roof Replacement High Level, Alberta. Low Slope Commercial.

Torch-On Roof Replacement. 2-Ply SBS Modified Low Slope Commercial Roof. SBS modified torch-on roofing is one of the more widely used flat roof membranes in Alberta. I don't know the industry wide percentages, but I would venture to guess that we install about 30% of our roofs with torch-on. EPDM would be about 45% and the other 25% would be a mix of the other types listed below. When replacing a flat roof your primary options are traditional tar and gravel, 2 ply torch-on, single ply membrane (TPO, PVC, or EPDM), spray foam (SPF) or some form of fluid applied. Visit our local Edmonton roofing division website for a more detailed description of the various flat roofing membrane options. For torch-on, common application methods are conventional roof systems and inverted roof systems. In the manufacturing process modifiers are added to standard roofing asphalt to replace plasticizers removed during a distillation process. Bitumen is then reinforced with fiberglass or polyester fiber matting in order to increase durability and strength. SBS (styrene-butadiene-styrene) increases the flexibility of the membrane and allows it to have stronger expansion and contraction capabilities - the synthetic rubber additives increase flexibility of the membrane. Modified bitumen roof systems can be installed with torch, fluid applied asphalt, or cold adhesive. A typical SBS modified bitumen roof system (as in site report below) is a two-ply application applied with a torch using rolls of membrane that overlap the edge of the previous roll. In the example below the roof board (or fibre board) is what we refer to as an FR Board and it has the base sheet SBS applied to the fibre board before leaving the factory. In this instance the base sheet FR board is mechanically fastened to the roof deck with the cap sheet being torched on after. The benefits of 2-ply SBS modified roofing are:
  1. Torch-on SBS modified roofing is very durable. This is important for high traffic roof assemblies. This would include commercial or industrial roofs where there are perhaps a lot of rooftop units, satellites, communication towers and the like and various service technicians attending to the roof regularly.
  2. It is weather resistant and can handle impact that perhaps other membranes would have issue with.
  3. It is moderately easy to repair and maintain.
  4. The factory manufactured rolls make quality control easier than with tar and gravel BUR roofing.
  5. It is moderately flexible. This is important for climates such as Canada.
In Canada we recommend our customers seriously also consider EPDM vs. torch-on if the roof has next to no foot traffic. EPDM doesn't handle foot traffic as well as torch-on but is easier and much less costly to repair. Torch-on requires a contractor with open-flame insurance - open-flame insurance is costly and many contractors do not have it. So EPDM increases the service pool of applicators that you can call for repair. Torch-on also typically comes with a senior journeyman that can be more costly than a technician for EPDM. EPDM is actually simple enough for most handy types to repair as a do-it-yourself and torch-on should not be done by anyone but a senior qualified and open-flame insured roofer. Below is a brief installation report from one of our crews installing SBS on a commercial building in High-Level Alberta last winter. October 25, 2014: Crew Arrives On-Site for Pre-Installation Meeting. Crew arrives at job site in High Level at 9 am. We conducted a tool-box meeting for safety compliance. We reviewed the scope of work and the existing roof membrane. It was a roll-on mopped asphalt roof membrane that was in very poor condition.
Torch-On Roof Replacement - Flat Roof Pre-Installation Meeting.
Torch-On Roof Replacement - Flat Roof Pre-Installation Meeting.
Pre Installation inventory and tool count.
Pre Installation inventory and tool count.
Another photo of the old roof condition.
Another photo of the old roof condition.
Roof Loaded
Roof Loaded.
  October 26, 2014: Crew Arrives On Site To Begin Work. Crew arrives on site to begin work. The work we did is stripping, then torched in the roof base. We moved the material to other side of roof and prepped  for the next day. Base sheet FR board was installed.
2 Ply SBS Base Installed
2 Ply SBS Base Installed.
Base Applied
Base Applied.
  October 29, 2015: Crew Arrives Back To Complete Job.  Crew came back to work and installed 250 frost grey cap sheet to the roof.
2 Ply SBS Flat Roof Replacement
2 Ply SBS Flat Roof Replacement
Flat Roof Torching
Flat Roof Torching
  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.