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. January 23, 2015: Crew Continues Laying Down 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. 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. < 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.
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. 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. 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.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. 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.
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.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. 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.
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.
- 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
- 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
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. 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.
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. 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. 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. 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.
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. 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. < 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.
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.
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.
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.
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.
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 >
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:
- 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.
- It is weather resistant and can handle impact that perhaps other membranes would have issue with.
- It is moderately easy to repair and maintain.
- The factory manufactured rolls make quality control easier than with tar and gravel BUR roofing.
- It is moderately flexible. This is important for climates such as Canada.