Two-ply SBS, torch-applied, on every flat plane you own.
The intersection
Coquitlam flat work is mostly strata multi-family off Coquitlam Centre and Austin Heights, walkway waterproofing on townhome complexes, and rear additions on older mid-century homes. We run two-ply SBS on residential and coordinate every strata schedule with the property manager and, where there is one, the building envelope engineer — WCB hot works documentation provided as standard.
Local intel
Coquitlam holds a big strata multi-family inventory, and a lot of our torch-on work here runs through those buildings — plexes off Coquitlam Centre, older four-storey walk-ups in Maillardville, townhome complexes across Austin Heights and Ranch Park. On strata work we coordinate with the property manager, provide WCB hot works documentation, stage the job to keep resident disruption down, and quote to the building envelope engineer's spec where one's involved. Two-ply SBS is the default: base sheet mechanically fastened, cap sheet fully torched, every seam torched twice. Reflective granulated cap goes on any plane that catches sun so attic and top-floor temps don't spike through summer. Parapet flashings get wrapped in metal and heat-welded, because the parapet is where lesser crews leak in year four on a strata roof. On the residential side, mid-century post-and-beam homes across Austin Heights and Maillardville still hold a lot of flat-roof inventory hitting replacement on a twenty-year cycle. Rear additions on Coquitlam Centre and Ranch Park homes are the other residential source. On townhome walkways and stairwells, we hold the waterproofing membrane to the same two-ply SBS spec..
The detail
Base sheet mechanically fastened to the deck. Cap sheet fully torched over the top with an eight-inch overlap on every seam. Every seam gets a second torch pass to fuse the bitumen. Parapets and stack flashings wrapped and heat-welded so nothing's just tar-and-hope.
SBS handles freeze-thaw the way asphalt built-up systems never did. The modified rubber stays flexible in cold weather, so the membrane moves with the deck instead of cracking. That's what buys the 20-year warranty span.
Single-torch seams. Skipping the parapet wrap. Forgetting the drip metal at the eave. Any of those three, and your flat roof leaks within five years. We check for all three before the crew leaves the site.
Frequently asked
Yes. We're on the approved contractor list for several Lower Mainland building envelope firms. Where the building runs under a 2-5-10 warranty, we write the spec to match the programme's requirements and coordinate with its inspection cycle. Every job carries the 10-year workmanship warranty.
Yes. Walkway and stairwell waterproofing is a common add to strata torch-on work. Depending on the substrate and the traffic, we run either two-ply SBS or a liquid-applied membrane. We walk the whole complex at the site visit and scope, document, and quote every requirement before the contract's signed — no surprises during install.
Yes. We're on strata parkade and walkway jobs here regularly. Send us the strata contact and your building envelope engineer's spec and we'll quote to that. If you have a 2-5-10 warranty firm involved, we can quote to their spec too.
More complex, yes. New Burke Mountain builds have bigger footprints, more valleys, and more penetrations for skylights and mechanical. Maillardville is straighter housing stock. The install spec is the same either way, the site walk just takes longer at the top of the hill.
Yes. Most townhome stratas run a spec colour we can order to. If it's an obscure shade we'll bring physical samples to the site walk to confirm before we buy the material.
20 to 25 years on a well-installed two-ply SBS system. We've been called back to inspect our own 2011 installs and they still look tight. Cheap single-ply BUR systems tap out closer to 10 years, which is why we don't quote them.
Other options here
Same material, other cities
Coquitlam · Flat / torch-on
Send Innovation Roofing your address or draw the outline of your roof. A named project manager will conduct the site walk, photograph every problem area, and return a written, itemised proposal within one business day — no call centre, no follow-up pressure.
WorkSafeBC registered · $5M liability · Licensed BC contractor · Written warranty on every project