Built for Edmonton winters
Systems, details and drainage chosen for snow load, freeze-thaw and hail, installed to ARCA Roofing Application Standards.
Commercial and industrial roofing, Edmonton
Edmonton's commercial and industrial flat roof specialists
Engineered for weather, built for life. We design, install and look after flat roofs for buildings that cannot afford a leak.
- Commercial & industrial only
- Flat roof specialists
- ARCA · COR · 24/7
Systems we install from
Soprema, IKO, Carlisle, GAF, Holcim, Johns Manville, Sika Sarnafil, Firestone
Edmonton's flat roof specialists
Rain Roofing does commercial flat roofing in Edmonton and nothing else. We install, replace, repair and maintain low-slope roofs on warehouses, plants, schools, offices and retail plazas across the region, from Acheson and Nisku to Fort Saskatchewan.
A flat roof here has a hard job. It carries snow for months, cycles through freeze and thaw, holds spring melt and takes summer hail. We build for those conditions from the deck up, put every warranty in writing, and stay with the roof for its whole life through inspections, maintenance and a phone that gets answered at 2 a.m.
- Year ARCA warranty certificate available
- 15
- Year manufacturer NDL coverage, depending on system
- 30
- Emergency leak line, answered by a person
- 24/7
- Tie-off on every roof we work on
- 100%
Why owners choose Rain
Durable by design. Backed for decades.
Four commitments we make on every building, from a small repair to a 400,000 sq ft distribution centre.
Three layers of warranty
Manufacturer coverage, our 10-year workmanship warranty, and an ARCA Warranty Certificate with third-party backing.
Prequalified and safe
COR-certified, registered with ISNetworld, Avetta and ComplyWorks, with a WCB-Alberta clearance letter on request.
We answer the phone
Emergency leak line answered 24/7, with a crew on site within 4 hours across the Edmonton region.
Flat roof systems
The right membrane for the building
We install every major low-slope system and tell you plainly which one suits your roof, your budget and an Edmonton winter.
Flat roof system
SBS torch-on
Two-ply modified bitumen, the proven Alberta standard for hail, cold and rooftop traffic.
Flat roof system
TPO
Heat-welded single-ply membrane built for large, open warehouse and distribution roofs.
Flat roof system
EPDM
Synthetic rubber membrane that stays flexible in deep cold, with few seams and a long record.
Flat roof system
PVC
Heat-welded single-ply membrane for roofs exposed to grease, oils and chemical exhaust.
Flat roof system
Built-up (tar and gravel)
Repair, maintenance and replacement for the tar and gravel roofs on older Edmonton buildings.
Flat roof system
Inverted roofs
Protected membrane roofs for concrete decks, plazas and parkades, with the membrane shielded from weather.
Metal roofing and cladding
Metal roofing and cladding
Standing seam metal roofs and wall cladding for sloped roofs, canopies and industrial envelopes.
Anatomy of a flat roof
What sits between the weather and your building
Every layer has a job. Skip one, or install it carelessly, and the roof fails early. This is the assembly we build and warranty.
- 07Cap sheet or membraneThe weathering surface: granulated SBS cap sheet, or a heat-welded TPO, PVC or EPDM membrane.
- 06Base sheetThe first waterproofing ply, fully bonded and lapped at every seam.
- 05Cover boardA hard, flat surface that protects the insulation from foot traffic and hail.
- 04Tapered insulationBuilt-in slope that moves water to the drains so it never sits and ponds.
- 03InsulationPolyiso boards, staggered so no joint lines up and heat cannot short-circuit.
- 02Vapour barrierStops warm, moist indoor air from condensing inside the insulation in January.
- 01Steel deckThe structure. We check fastening, rust and deflection before anything goes on top.
We stand behind every roof
Three warranties. Three backers. One phone number.
Most roofers hand over a manufacturer's certificate and disappear. We spell out who covers what, for how long, and we keep you compliant so the cover stays valid.
Spring and fall inspections every year keep all three warranties valid. Included in every Rain maintenance program.
Repair or replace
See what a proper replacement changes
Ponding, blisters and open seams on one side. Slope, drainage and a sealed, warrantied membrane on the other.
Services
Build it. Look after it. Answer the call.
One crew for the whole life of the roof, from new construction to the 2 am leak.
Why flat roofs fail in Edmonton, and how we build ours not to
Most flat roof leaks start in the same few places: seams, flashings, drains and penetrations. Edmonton's climate works on all of them. Water gets into a small gap in the fall, freezes and opens it wider. Snow hides the problem for months, then spring melt ponds on the low spots and finds the gap.
We start with drainage: tapered insulation, crickets and correctly set drains that move water off the roof. Then we choose the membrane for the building, from 2-ply SBS for cold and hail to TPO, PVC or EPDM where they fit better. The field of a roof rarely leaks. The details do, so that is where our crews spend their time.
- Positive drainage designed in from the start, not added after the first leak
- Membrane selected for the building's use, exposure and budget
- Details installed to manufacturer specifications and ARCA standards
- Photos of every critical detail before it is covered
A commercial roof warranty in three layers
A warranty is only as useful as the company behind it, so we stack three. The manufacturer covers the materials, and on qualifying systems an NDL (no dollar limit) warranty covers the whole system. We cover our own workmanship for 10 years. As an ARCA member, we can also issue an ARCA Warranty Certificate of 5, 10 or 15 years, independently inspected and backed by ARCA Warranty Ltd after the first two years.
At closeout you receive a warranty file with every certificate, the as-built details and the maintenance requirements, so your coverage never depends on someone's memory.
Life-of-roof care: maintenance, inspections and 24/7 response
A flat roof that gets checked twice a year lasts longer than one that gets checked after it leaks. Our preventive maintenance program covers spring and fall inspections, drain and scupper clearing, sealant and flashing touch-ups, and a written report with photos for your files.
When something does go wrong, call our emergency line. We answer 24/7 and a crew is on site within 4 hours to stop the water, protect the building and document the damage. The permanent repair follows, and the record goes in your roof's file.
- Spring and fall inspections with photo reports
- Drain, scupper and overflow clearing
- Roof snow removal where load is a concern
- Infrared and moisture surveys before any re-roof decision
Who we work for
Our clients manage buildings for a living. Property managers with a portfolio of plazas. Plant managers who cannot shut down a line for a leak. General contractors who need a roofing trade that arrives prequalified and finishes on schedule. School boards and institutions with tight summer windows and public tenders.
We work across the region: the northwest industrial areas along the Highway 16 corridor, Strathcona Industrial Park, Nisku and Leduc, Acheson, Fort Saskatchewan and the Industrial Heartland, Sherwood Park, St. Albert, Spruce Grove and Stony Plain.
Industries
Roofs for buildings that can't stop
Warehouses, plants, Heartland sites, schools and plazas: we plan around your operation, not the other way round.
Industry: warehousing and logistics
Warehousing and logistics
Large-area flat roofing for distribution centres, phased around dock schedules and racked inventory.
Industry: manufacturing
Manufacturing
Plant roofs built for exhaust, chemical exposure and daily maintenance traffic, scheduled around production.
Industry: oil, gas and petrochemical
Oil and gas, Heartland
Roofs for support buildings at Heartland and Nisku industrial sites, with prequalification and permits in order.
Industry: institutional
Institutional
Roofing for schools, healthcare and municipal buildings, planned around occupants, tenders and summer windows.
Industry: retail and commercial
Retail and commercial
Plaza, office and multi-tenant roofing, scheduled around tenants and store hours.
Service area
Edmonton and every industrial park around it
From Acheson to the Industrial Heartland, our crews are on site within hours, not days.
Questions
Straight answers
Do you do residential roofs?
No. Rain Roofing works only on commercial and industrial buildings, and most of that work is flat and low-slope roofing. That focus means our crews, equipment and suppliers are set up for the roofs you actually manage.
Which flat roof system is best for an Edmonton building?
It depends on the building. 2-ply SBS is the regional workhorse because it handles cold and hail well. TPO and PVC suit reflective or chemical-resistant needs, and EPDM suits large, simple roofs. We recommend a system after checking the deck, insulation and drainage.
How fast can you get to a leak?
Our emergency line is answered 24/7. For active leaks we aim to have a crew on site within 4 hours anywhere in the Edmonton region to make the roof watertight and protect what is underneath.
Can you work inside our prequalification system?
Yes. We are registered with ISNetworld, Avetta and ComplyWorks and hold a Certificate of Recognition (COR). Our safety program, insurance certificates and WCB clearance letter are available on request.
Should we recover the roof or replace it?
A recover over the existing roof can save money, but only if the deck and insulation are dry. We check with a moisture or infrared survey first. Wet insulation trapped under a new membrane keeps damaging the roof and can put the new warranty at risk.
Talk to the crew that stands behind the roof
Send us drawings, a spec or just an address. You get a clear scope, a written warranty and a roofer who answers the phone in a storm.