Photo Journal: TPO Flat Roof Recovery and Sloped Insulation in High Level, AB

Below you will find a photo journal from a commercial contract in High Level, Alberta. The work entailed a TPO flat roof recovery and sloped insulation. Background When a roof reaches the end of its life, our clients are faced with the choice of either a full replacement or a recovery. Roof recovery refers to applying a new system over an existing one when the roof is reaching its end-of-life (1). Depending on climate conditions, preference, or preexisting solutions, a roof recovery may be performed using TPO, EPDM, bitumen, cap-sheets and/or asphalt. Sloped insulation refers to the tapering that exists on an insulation system. As a weatherproofing measure, when precipitation reaches your roof, it will run off into the drain system down the slope. Call us today for a consult on which roof recovery system is right for your commercial, industrial, or residential environment. < End Journal > Code: HIGH Article Topics: TPO Flat Roof High Level Alberta. 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 Roof Leak Repair and EPDM Recovery in Edmonton AB, Nov 27 2014

Below you will find a report from the Edmonton roofing repair crew responding to a leak call from a commercial client.  Quotation, September 10 2014:
  • Repair four leaks on tar and gravel roof
  • Complete roof replacement options: Spray foam only (+ top coating as required - polyurea, liquid rubber, or EPDM), TPO or PVC (white reflective roof), 2-ply SBS modified bitumen (torch-on) or 4-ply BUR, 4-ply engineered liquid rubber roof, TOUGH ROOF
  • Sustainable roofing recovery (overlay/reconditioning): Spray foam only, EPDM, TPO or PVC, 2-ply SBS modified bitumen, 1-ply coat tar, 2-ply engineered liquid rubber
Assessment, November 27 2014: 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. Scope of Work:
  • 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

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
Code: 14630 Article Topics: Commercial Roof Leak Repair Edmonton. Roof Drain Repair.   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.

Flat Roof Repair and Leak Maintenance in Unity SK, September 28 2012

Below you will find a field report and site assessment from our flat roof repair crew in Unity for a commercial client. They responded to a call for leak repair and roof maintenance.
Field Report, September 28 2012:
The client escorted us to the ceiling where leaks were coming from, and then we proceeded to the roof. The roof itself contained four different systems: PVC, BUR, SBS, tar/gravel. The leak in question originated from the BUR & tar/gravel section.
We cleaned all the snow around the drain and checked for possible leaks there as well. It was found that the draining pipe was either too small for the drain or incorrectly installed.
This is probably not a roof problem, so much as it is a plumbing one. We gummed the inside of the drain as a temporary fix and advised the client to contact a plumber.
Site Assessment:
Front awning 8/12 slope metal
  • Wall cladding with improper flashing used
  • No membrane installed
Upper Roof 4/12 slope metal
  • Screws back out from roof back
  • Flashing improperly installed
  • Holes in roof vent flashing
  • Plumb vents not sealed properly
  • No fascia or drip edge flashing used
  • No membrane installed
Back lower roof, restaurant side - 4/12 slope metal
  • Wall to roof flashing installed improperly, 12" high with negative lap
  • Vents not properly installed
  • Low clearance under catwalk and wall to roof by duct and AC unit
  • No membrane installed
Metal roofs
  • Flashing not properly installed
  • Holes in roof vent flashing
  • Plumb vents not sealed properly
  • No membrane installed
Shingle roofs
  • Holes in shingles
  • Granules worn away
  • Cracked/broken shingles
  • Total failure of gutter system
Back east roof torch-on or APP 2/12 slope
  • System failure
< End Report >
Code: 120
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.

Roof Retrofitting in Unity SK, August to October 2010

Below you will find a series of Roof Reports and photos from our roofing repair crew in Unity, Saskatchewan. The client asked us to perform some retrofitting and approved some assessments that were made on-site. Roof retrofitting and leak mitigation was provided.

Roof Report, August 24 2010:

We opened one ventilation unit which was found to have traces of moisture. It was water-tested, which came back positive as a leak area. We also found areas that had open wire penetrations and gas lines going into the building. A cut-test was also performed, where 4-ply styrofoam insulation (5") and a vapour barrier was found. This might explain why water had to travel some distance before it appeared as a leak, since the rest of the roof is in good shape. Areas requiring maintenance were sealed with mash, mastic and additional caulking as required. Client Callback, October 21 2010: After TPO recovery, the client found more water leaking at grade-level. We resolved the issue with caulking around the problem area. < End Report > Code: 120 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.