Residential EPDM Roof Replacement, October 2015, Edmonton

This client's home bears a low-slope roof that they wished for GRS to replace with an EPDM system. The crew of technicians went out to their location and completed the roof replacement in two days' work.   Materials List: October 13, 2015 Two technicians went out to the client's location and inspected the roof for what kind of deficiencies might be encountered during the roof replacement. During their inspection, they noted down the expected materials that would be required for the job.
  • 2x Rolls of EPDM
  • 7x Pails of EPDM bonding adhesive
  • 1x Pail of primer
  • 1x 6" roll of form flash
  • 2x Pipe boots
  • (84) 4' x 4' sheets of fiber board
  • 4x Roller cages and sleeves
  • 1x Box of seam tape
  Roof Report: October 16, 2015 The team arrived on site for 8:00am, and had their disposal bin arrive by 9:00. At that point, they were already underway ripping off the old roofing system and making good progress. It was after then that they found that there was no plywood with the order, just 2x6 boards. They departed to get the requisite plywood, and returned an hour later around noon. The boards were all mechanically fastened into place, with some of the EPDM laid atop it. The crew departed in the early evening, set to return the following day and focus on the remaining EPDM and metal flashing.
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The client had an EPDM roof, with the system going past its life cycle. Here is a torn section, with some cracking in the underlayment.
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We removed the existing EPDM system until the plywood was exposed. Many of the boards were either rotting or had holes in them.
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Rotted wood that had eventually given way, creating a prominent hole in the assembly.
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After installing new fiber boards over the assembly, we applied bonding adhesive to the underside of the EPDM.
    Roof Report: October 18 The reporting technicians notes were brief, but the site is now marked complete with the EPDM and flashing that was left over from the previous day's work. Everything went well and the roof was covered without any issue or hindrance of note.  
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Completed EPDM installation, with liquid rubber coatings applied over the seams.
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Newly installed edge flashing.
  CODE: 12936 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, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.  

Commercial EPDM Roof Replacement, October 2015, Saskatoon, SK

This client in Saskatoon contracted GRS to send out a crew that could replace their currently flat roof with a new EPDM system. The team went on location to rip out the old system and installed the requested EPDM without any issue.   Roof Report: October 7, 2015 This day, the crew arrived on site for 7:00am and began to rip off the existing roof system. The other team members didn't arrive until a short while later, right around the time that the crane showed up with the site materials. Between 12:30 and 12:45pm, the team loaded the roof and found that the order was missing insulation and seam plates. The site lead had to leave the site then, to pick up the missing supplies. By their return at 3:00pm the remaining team had torn off enough of the roof to expose some rotten plywood underneath. This too, had to be replaced, so another member of the crew was dispatched to pick up some replacement sheets. In the meanwhile, the on-site crew put down the ISO insulation boards and began gluing the rubber to it. It was around that time (~5:00pm) that the temperature began dropping below what the normal threshold for the glue's application permits, so the team weighted down the EPDM for the night and prepared the site for the rubber's adhesion the following day.  
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We started the roof replacement by ripping out the existing system. The roof surface consisted of plywood boards.
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Some of the plywood boards on the roof were rotted to a point where there were holes in the assembly.
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Damaged pieces of plywood were replaced and we prepared to install ISO over the structure.
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Bonding agent was applied to the underside of the EPDM and installed over the ISO boards.
    Roof Report: October 8, 2015 The crew assembled once more for 7:00am and got to ripping out the rest of the roof as the sun began to rise higher into the sky, warming up the site. When the roof itself was all torn out, they laid the EPDM's ISO insulation and then adhered the rubber atop it. This work carried on through the day, so that by the time they were prepared to leave the site, all of the rubber had been laid down and some of the plywood had been installed to the parapet walls where it had required replacing. The following day would only require some detail work to some curbs and seams. They expected that everything would be completed by 3pm and the site would then be entirely finished.    
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After ripping out the existing structure on the second half of the roof, we mechanically fastened ISO boards.
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More mechanical fasteners around the perimeter of the roof.
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We applied rubber seam tape over the perimeter of the roof to prepare to install the perimeter flashing.
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Completed flat roof EPDM installation.
      Roof Report: October 10, 2015 The crew finished the roof on this day, but not without a little bit of trouble during the process. One of the subcontractors hired on for the job was not able to carry out the metal work that they'd claimed, so a replacement had to be found on short notice. The replacement arrived on site and completed the metal work in a timely fashion that also measured up to the exacting standards on any GRS project. With the metal work done, the site was cleaned up and the crew departed, leaving this another completed site bearing the GRS stamp of approval.
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To wrap up the site, we finished the metal work, including the perimeter flashing.
< End Report > CODE: 103 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, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

Edmonton Tar and Gravel Roof Repair

A prospective client north of Edmonton reached out to GRS to address a flat, gravel roof that was found to leak during the warmer period of this past winter. The water would drip into the unit and out of the ceiling in an approximately 6' x 8' area. They requested an estimator to come examine the roof and provide a quote for repair or replacement. Researching the building and gathering pertinent dimension information, GRS delivered estimates for a variety of roofing replacement systems in addition to what the expected repair would require. Client evaluated the options and believed the EPDM roof recovery to be their best option, rather than repair smaller portions of the roof. Appreciating the quote and evaluation, the client elected to put the project on hold for the time being. 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 Roof Penetration Install, October 2014

This commercial client reached out to us about having two roof penetrations installed properly on their EPDM roof. The roof was very muddy and needed to be cleaned before the installation could begin. Photos sent by the client showing the roof penetrations: 20140814_102849_resized 20140814_102930_resized Roof Report, October 17th, 2014:
This was an EPDM roof which the client needed two penetrations installed on. The roof was very dirty and covered in mud which took some time to clean. They had used silicone to put a temporary seal which we had to remove once we had cleaned the area. We roofed it in with form flash and the job is now 100% complete. This was an hourly dispatch plus materials.
Materials Used:
  • 24ft. of 12 inch form flash.
  • 1 can of primer.
  • 1 bag of rags.
  • (1) 1 gallon can of splice wash.
  • 2 tubes of lap seal.
20141016_142913_resized 20141016_142922_resized 20141016_142946_resized 20141016_160512_resized 20141016_173518_resized 20141016_173525_resized 20141016_173534_resized 20141016_173542_resized < End Report > CODE: 9503 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.

Roof Leak Repair in Fort Saskatchewan AB, July and August 2014

Below you will find a series of reports from the Edmonton roof repair crew responding to a call for leak repairs from a commercial client. We had to resolve some problems which were left over by previous contractors. Assessment, July 1 2014: Once we got up to the EPDM ballasted roof, we found a lot of broken glass uphill of the area where leaks were reported. After doing some cleaning, we moved some gravel aside (32 ft. x 32 ft. area) to look for issues. It was swept back into place when this section was cleared. After that, we did another 32 ft. x 32 ft. section of the roof and continued on in this fashion. It is also worth noting that the previous contractors did not use any seam tape on the field laps, but glued them to each other with a 6 in. overlap between each. On the parapet wall detailing, the previous contractors had used EPDM rubber as a patch, as opposed to form flash or cover tape. Considering the detritus removed from the site, coupled with the improper EPDM installation, we thought it would be best to check all the field laps above the leaking area. When we finished our day, we spoke to the client and explained that more time was required to continue looking for the leak. Field Report, July 2 2014: 3:00 arrive on site and assess the leaks from inside building when we got up on the roof in the area where the leaks where we found two corner patches that were cracking and the lap seal had let go that was the only visible sign of a leak everything else looked good so we used water mastic as we didn't have any lap seal on the truck to seal the cracks with the rain we could not put a permanent patch on this fix was temporary We arrived on the site at 3:00 pm and assessed the leaks from inside the building. When we checked the roof, there were two corner patches that were cracking and the lap seal had come off. This site was the only visible sign of leaking. Everything else looked okay, so we used water MASTIC, as we did not have any lap seal in the truck to seal the cracks with. Since it began raining, we could not put a permanent patch on this fix. August 4 2014: When the team arrived on-site, we started to move gravel away from the next section of the roof and found that there was a glued lap at the front parapet of the building with only a 2 in. overlap and buckle going through the lap. Around the curb, the wrong flashing was used and only wrapped the corners once. We fixed these issues before the afternoon began. All the gravel was then redistributed onto the roof surface. The client was informed that the problems he was having so far had been remedied. While we were away at another site, however, the staff at this location called us about another problem area that had emerged. The first is that the EPDM is peeling away from the wall and should be cut and patched before it starts pulling apart the field laps. There is also a new gas line going through the roof, and only caulking is being used as a sealant. A gum box should be installed as well.
Materials:
  • 4 ft. x 1 ft. form flash
  • 8 ft. x 6 in. cover tape
  • 1x gallon of splice wash
  • 300 mL of quick primer
  • 30x rags
  • 4x scrub pads
  • 1x tube of lap sealant
August 5 2014: In order for us to fix the walls, we are going to need to cut the membrane and secure it back. This is going to leave a 2 ft. x 40 ft. EPDM opening in two different places. The following materials are required to fix these new openings:
  • 4 ft. x 40 ft. of EPDM (cut from a 10 ft. x 100 ft. roll)
  • 1x 5 gallon pail of bonding adhesive
  • 1x 4 in. gum box and sealer
  • 1x 5 gallon pail of splice wash
  • Box of rags
  • 4x roller sleeves
  • 4x paint brushes
  • 4x rolls of 3 in. seam tape
When we got to site, we went and talked to the site manager and she showed us the problem area.  Once on the roof, we found six deficient corners around the curbs and sleepers in the area above the leak.  Instead of guessing, we repaired them all in the hopes of fixing the leak.  We are still not 100% sure that solved problem, and we did not want to spend too much time repairing this area since all theses curbs should be removed and the old air unit thrown out.  So from 1:45 pm to 2:15 pm we looked for the leak, and from 2:15 pm to 5:00 pm we cleaned and patched the six aforementioned corners and replaced the gravel.  These were permanent repairs. At 5:00 pm we went back to the upper roof and started the preparatory work for repairing the walls until 7:00 pm.  We have all the gravel moved back and the cut out the EPDM required for tomorrow.
Materials:
  • 6 ft. x 1 ft. form flash
  • 1 gallon of splice wash
  • 1x tube of lap sealant
  • 30 rags
  • 32 ft. x 10 ft. EPDM
  • 3x scrub pads
  • 1x paint brush
  • 4x pairs of disposable rubber gloves
August 6 : We completed the two wall repairs which took extra time since wehad to redue the russ strip in these areas. I informed the client of the extra needed and he said as long as it was done right. We had a meeting on the roof at 4 pm and showed the work we had done and he was happy with it and would like to give us more work on another building. We know this building will need more work since the original roofers took a lot of short cuts. August 6 2014: We completed the two wall repairs, which took longer than anticipated since the Russ strips required redoing. The client was okay with the overtime and appreciated that we were completing the work properly. We had a meeting on the roof later in the afternoon and showed the client the finished product. He was happy with the results and wanted to give us more work on another building. It is also anticipated that this building will need more work done since the original contractors took a lot of shortcuts. Materials
  • 8x tubes of lap sealant
  • 3x rolls of 3 in. seam tape
  • 10 ft. x 1 ft. of cover tape
  • 1/x of rags
  • 2 gallons of splice adhesive
  • 2 gallons of quick prime
  • 1 gallon of bonding adhesive
  • 2 gallons of splice wash
  • 2x roller sleeves
  • 4x paint brushes
  • 6x scrub pads
< End Report > Code: 99 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.

Drayton Valley EPDM Flat Roof Replacement, July-Dec 2014

This report covers quotation and services carried out to a commercial building's flat roof in Edmonton. The GRS crew performed some spot repairs first, following it up with an outright EPDM roof replacement. Continue reading Drayton Valley EPDM Flat Roof Replacement, July-Dec 2014

Edmonton EPDM Roof Restoration Liquid Rubber Coating, April 2012

Below is the collection of field reports for an industrial roofing system repaired by GRS in April 2012.
Table of Contents:
Inspection
Roof Reports
  Initial Inspection: April 17, 2012: Sealants The sealants on all 9 roof levels are deteriorated and require attention. Drainage One drain was found to have a great deal of debris blocking the way for water. It was cleared as best as possible, but is still draining slowly. Parapet Walls The EPDM roofs (of which there are 2 from the total 9) seem to be in good condition. The metal lining the parapets are also in good condition. Building Structure Building Structure Interior - Very good condition Building Structure Exterior - Very good condition Tie-Ins See 'Sealants' (above). Several of the EPDM plumbing boots, wire boots etc. are damaged. This can be seen in cases where the caulking has been worn away or when there are holes in the rubber itself. Air Conditioning Units We found that much of the flashing sealants have cuts and abrasions. There is moisture is getting through that needs to be addressed. 100_1204 Splitting N/A Blistering N/A Ridging N/A Fish-mouthing N/A Punctures We found punctures in the metal roofing, but did not observe any in the EPDM as it is covered with large ballast (approximately 1 to 1.5 inch gravel). The client, however, has reported many leaks in that part of the building, so openings of some sort must be present. We will need investigate further. 100_1214 Ballast For the most part, the ballast is adequate and well-distributed. Summary It is very difficult to pinpoint where the moisture is entering on the EPDM portions of the roof, however it appears to coming in in several areas. Several offices within the building have experienced substantial leaking. This is a very large structure and would benefit from regularly scheduled maintenance. Many of the current issues could have been mitigated before becoming a problem. Roof dimensions are:
  • 55' X 112' EPDM.
  • 38' X 51' EPDM.
  • 60' X 51' METAL.
  • 128' X 97' METAL.
  • 125' X 97' METAL.
  • 158' X 80' METAL.
  • 77' X 25' METAL.
  • 77' X 57' METAL.
  • 38' X 47' METAL.
Additional Photos: 100_1200 100_1201 100_1206 100_1207 100_1209 100_1210 100_1212 100_1213 100_1217 100_1218 100_1219 100_1221 100_1222 Roof Report, May 28 2012: Two of our crew arrived to the job site for 9am and began conducting some of the smaller repairs necessary. Materials:
  • 2 tubes ms detail.
  • 1 tube of barr.
  • 2 tubes lap sealant.
  • 4 ft. of cover tape.
  • Primer.
  • Splice adhesive.
They left the site for 5:00 pm, scheduled to return the following day (May 29). Roof Report, May 29 2012: Crew members investigated the leaks on the upper and lower EPDM roofs. They found improper rubber detail on the walls, and a corner termination. The installation of the EPDM near the roof access doorway was in a poorly state as well. They re-glued and secured the EPDM along the wall and patched several holes from staples, nails, or other rooftop debris. The flashing atop one of the offices was removed where there were signs of recent water ingress. They brought EPDM up and over the wall properly and replaced the metal that sits on top of it. After this, they moved to the upper roof had a 'popped' corner in the EPDM, as well as a pipe boot's flashing was left uncaulked (large, open gap). There were other holes located in the metal portion of the roof, which have now been sealed up properly. A pipe boot, however, appears to have been cut at some time which left an open hole and some semi-exposed wiring. We put a temporary seal on it for the night, and plan to cover it with plate or suitable flashing the next day. Roof Report, May 30 2012: Today, we finished the repairs to the roofing system. Virtually all of the penetrations (roof vents, jacks, boots, etc.) were missing sealant, so we reapplied some and ensured that they would be watertight. There was also caulk sealant around many curbs in poor shape that needed removal and reapplication. We used MS detail to reseal them (as well as some roof jack edges), using mesh to bridge the cracking or exposed edges. One of the metal walls along the roof needed the entire base resealed due to badly failing sealant. MS detail and mesh was used again to address this spot. There is a gutter on the roof in bad shape that will need to be repaired or replaced. This may have been caused by a heavy snow pack sliding down towards the gutter; a snow brake may be useful in this location. The last point of note is that the sign on the roof may need to be looked at in the future. There are holes in the metal from nails or screws tearing through in a couple of locations. It's difficult to get a proper view without getting more invasive, but this may be a concern in the future to be mindful of. 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173     This report is ongoing and will be updated as more information comes in. CODE: 6621 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.