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.   Roof Report: August 5 2015: The crew arrived on-site at 7:00am and began cutting and laying in the FR board in preparation for this EPDM roof installation at this commercial property. Before all of the FR board was put down, four gumboxes (plastic pans) had to be removed and the pipes they surrounded required grinding down. The grinder ran out of discs, so one member of the team left to replace them while the others began putting down the first run of the EPDM rubber. Upon the departed member's return, the two remaining pipes were removed and rubber was cut to fit around the extrusions and glued into place. Around 3:00pm, rain clouds began to roll in and threatened the end of the work day. The FR boards were covered and cleaned, covered with rubber, and weighed down to waterproof the roofing system for the night.
The client had flat tar/gravel roof that was due for a replacement.
There was significant standing water all over the roof. While a roof with some life cycle on it could have been re-pitched, deficiencies in the drainage systems and in the membrane made the cost of a replacement a worthwhile investment over time.
Before laying down FR boards, gum boxes and pipes had to be removed and and required grinding down. Here is an example of some of the piping post-grind, with boards installed.
Once the required grinding was completed and all of the gravel was removed, the entire roof was covered with boards.
As each run of fiberboards was installed, another crew member began putting down EPDM over top. The rubber had to be custom cut to fit around the various extrusions on the roof.
Our method entailed bonding EPDM to the roof using adhesive agent. The bottom side of the EPDM and the roof surface itself were coated with the agent, and then the EPDM was applied.

Roof Report, August 6 2015:

Team arrived on-site again for 7:00am and began to lay board down, using Duratec to seal it. After the board was laid, they began installing the EPDM, taping and sealing as they went. Upon finishing the last roll of rubber for the day, one member began sealing and waterproofing penetrations (pipes, extrusions, etc) . The remaining members put the overnight seal on the unfinished work. Day's work resulted in 2580 square feet of EPDM roofing installed.

With half of the roof completed, we moved onto repeating the process for the second half.
With the new runs of EPDM installed on the remaining half of the roof, all that remained was applying liquid rubber coatings over the seams to make it watertight.
Technicians sealing in EPDM on some corners on a raised level of the roof. Flashing can be seen in the background, which was installed thereafter.
Touching up coatings around the base of a ventilation unit at the exposed seams.
By the end of the day, most of the roof was completely covered in EPDM. All that remained was completing the detail and seam work.

Roof Report: August 8 2015:

After a safety briefing and detailing what materials were required to finish this job, the crew started working at the far wall on the west side of the building. Three members of the crew worked to finish laying in the rubber and bonding it to the board (completing seam work as they went along). Two team members worked on the detail work remaining on the east side of the building, completing that portion and ensuring that the metal siding application can be done next. For the day, 500 square feet of rubber was laid and 95% of the seam work was finished.     Roof Report: August 9 2015: This day saw the completion of all the required seam work and removal of most of the rooftop garbage. The patchwork and detail work is nearly done in addition to the metal stripping around the perimeter of the building being put back on. The crew believed that the following day would see the finalization of the project, contingent on some materials being brought to the site. The smaller roof (separate level) is entirely prepared to be roofed over, which is believed to take eight man hours (in a two-man team) to wrap up. A bin will need to arrive on Tuesday to remove all of the waste from the site.
To wrap up the site, our technicians spent the day coating the seams. In this case, a patch has been applied over the corner of this appliance.
Liquid rubber coatings were then applied over the seam patches.
Leftover materials and garbage ready to be removed off-site.
An exposed seam running the length of the roof. Liquid rubber coatings are applied over top to ensure that no air or gas bubbles become trapped underneath the EPDM over time, as well as to make the roof watertight.
  Roof Report, August 11 2015: Today was the last day of the project. The GRS team completed the detail work, patching, flashings and the lower roofing's EPDM system. In addition to the above, a new drain was installed and the garbage was cleaned away from the building.
Before resuming with the remaining detail work, we re-installed the flashing around the roof perimeter.
Our final walk-around entailed removing all garbage from the roof and ensuring that no components required touch-ups or spot repairs.
Besides the flashing, a new drain was also installed. Some patches were applied to the lower roof.
< End Report > CODE: 14459 Contact Us About EPDM Roofing
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.

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