Commercial Roofing
Duro-Last installed over any Flat Roof or Sloped Metal System
Tremendous cost savings over typical roof replacements…and carries a 15 year written manufacturers’ warranty.
Strength Is In The Scrim
Film for the Duro-Last membrane is made from a proprietary thermoplastic blend of resins and plasticizers, stabilizers, biocides, flame retardants, and U.V. absorbents. Our high-density, weft-insertion knitted scrim laminated between two film layers gives the membrane its exceptional strength and durability
No need to TEAR OFF the old roof
"retrofit" installed over any Flat Roof or Sloped Metal System with a Duro-Last PVC single ply roof and save lots of money plus the benefits are very tangible
Retrofit Roof Systems
Installed by certified technicians
Flat Roofers only uses world class materials on all roofing projects and does not cut corners to reduce costs.
Identify Your Roof
Built up Roof - Modified Bitumen
Flat Roofers roof solutions are specially formulated according to the roofing surface, whether it be a typical Rolled Asphalt BUR or Built up Bitumen roofing....
Tar & Gravel Roof
Flat Roofers roof solutions are specially formulated according to the roofing surface, whether it be a typical tar and gravel roofing or any type of flat roof.
Single Ply Roof - PVC/TPO/EPDM
Single Ply TPO and EPDM Re-Roof and Retrofit Solutions Cost LESS. You can greatly reduce the cost of complete roof replacement by simply re-roofing with a single ply membrane … at a fraction of the price!
Metal Roof
Flat Roofers roof solutions are specially formulated according to the roofing surface, whether it be a typical metal or tin roofing....
The Flat Roofers & Advantage
- Tremendous cost savings over re-roofing
- Up to a 20 year warranties and beyond are available
- Years of longevity given to the existing Tar and Gravel Roofs and all BUR systems
- Maximize R-Value
- Reduction in cooling costs with up to 80% reflectivity with new White roofs
- Minimal disruption to the work environment during its application
- Minimal waste going to landfill
- No toxic odours or vapours
- Ease of future repairs
- No increase in roof weight load
- Reduced long term maintenance and roof repair costs
- Energy Star rating and Green Building rating
BEST PRICED ROOFS IN CANADA
Flat Roofers – Tar & Gravel Systems
Flat Roofers are your flat roofing experts, so if you’re thinking about installing Tar and Gravel or any other roofing system, give us a call. Our Roofers are Tar and Gravel experts with 100’s of years of combined experience. Flat Roofers is serious about tar and gravel roofs. The application of Tar and Gravel requires $100’s of thousands of dollars in specialized equipment and specialty insurance. We do complete installations, repairs, and full replacements.
If you require snow removal during the winter or repairs or upgrades to your ventilation or drainage systems, we can help you with that too..
4 layers of asphalt and felt papers make up the roof system 
Another layer of hot asphalt 
Completed Tar and Gravel roof system
Flat Roofers Retrofit Roof Systems from Duro-Last
Don’t let a leaking roof damage your inventory! Re-roof now before the spring thaw, fall rain and the winter snow damages your roof. Flat Roofers can waterproof any type of damaged commercial or industrial roof with singly-ply Duro-Last® PVC, which is guaranteed for 15-20 years, saving you time and money and keeping your inventory safe.
Read more on how we can re-roof your commercial business!
Book a Fall Free Roof Inspection today! Ask about our Spring / Fall / Winter specials.
This is what we do:
Our roofing story start to finish shows a typical Tar and Gravel plant or warehouse where we can take a Duro-Last PVC membrane and go right over the top saving money and offering up to a 20 year Warranty. No need to tear off the old roof (unless its saturated), no heavy disposal costs and environmental waste added to landfills.
This is a typical Tar and Gravel built up roof system
A steel deck, covered by a vapour barrier that is typically paper, some type of insulation, then four plies (layers) of paper and asphalt covered by a layer of asphalt and pea stone gravel. Hence your Tar and Gravel Built up Roof System.
Step #1 Inspect the roof for wet insulation
A test cut is made in the roof if moisture is suspected and the metal roof deck is inspected for degradation. Seen here is 2" of fiberglass insulation before the Tar and Gravel roof
Step #2 If wet insulation is found it must be removed. If not go to Step #4
In a case where the insulation is saturated it must be removed but only the saturated sections
Step #3 Replace with new insulation
When the wet roofing is removed new insulation is installed to match the height of the old roof to begin the recover process
Step #4 Install separation board
Polystyrene separation board is laid to keep the old roof and new roof separated
Step #5 Install PVC sheets and hot air weld the seams
Now the sheets of PVC membrane are installed and mechanically fastened
Step #6 Custom prefabricated flashing for all roof top penetrations
Custom details are fabricated for roof top penetrations and hot air welded to the membrane
Step #7 completed roof
This roof can be warranted for up to 20 years by the Manufacturer
Certified. Insured. Guaranteed.
For a comprehensive free rooftop inspection, analysis and follow-up report call us at 1-800-307-3719 or send us an email at: info@flatroofers.ca