Roofing Products · Flat Roofing
Flat Roofing Products for Low-Slope Roof Systems
Flat roofing is less about one visible product and more about building a waterproof system. These are the low-slope roofing product lines we use when the roof needs torch-on SBS modified bitumen or a modern single-ply TPO membrane.
This page is a supporting product page, not a sales page. It explains the flat roofing materials we choose from for garages, additions, commercial spaces, low-slope sections, and roof areas where standard shingles are not the right fit.
Why These Products Are Listed Here
Flat roofs need products chosen for drainage, seams, UV, and waterproofing details.
A low-slope roof does not shed water the same way a steep shingle roof does. Product choice matters because the membrane, seams, laps, drains, walls, curbs, edges, insulation, and flashing details all work together as one roof system.
Used where shingles are not the right fit
Flat and low-slope areas need roof membranes that are designed to manage water at lower pitch, not standard shingle assemblies.
Seams and laps are critical
Whether the roof is torch-applied SBS or heat-welded TPO, seams, laps, terminations, corners, and transitions need careful installation.
Drainage still has to be built correctly
The membrane matters, but flat roofing also depends on slope, drains, scuppers, gutters, edge metal, and preventing ponding where possible.
Different roof areas need different systems
Torch-on SBS and TPO can both be strong choices, but the right product depends on roof use, details, substrate, access, slope, and project requirements.
Flat Roofing Product Lines
The flat roofing products shown here are IKO Torchflex, SOPREMA SOPRALENE FLAM, and IKO InnoviTPO.
This is not a generic catalogue of every flat roofing material available. These are the product families we choose from when a project calls for a torch-on SBS modified bitumen system or a TPO single-ply membrane system.
Final product selection depends on the roof slope, deck condition, insulation needs, drainage, penetrations, wall transitions, fire and code requirements, manufacturer specifications, supplier availability, and whether the roof is residential, commercial, or mixed-use.
Torch-on SBS system
IKO Torchflex
IKO Torchflex is a torch-applied SBS modified bitumen product family used for low-slope roof systems. It is typically built as a layered assembly using compatible base and cap sheet products, with the cap sheet forming the exposed weathering surface.
Low-slope residential or commercial roof sections where a traditional torch-on SBS modified bitumen system makes sense for the roof design and details.
Soprema torch-on SBS
SOPREMA SOPRALENE FLAM
SOPRALENE FLAM is the Soprema torch-on SBS modified bitumen line we would reference when a project calls for a Soprema flat roofing system. Product selection can vary by exact assembly, but SOPRALENE FLAM 180 is a common heat-welded SBS base-sheet reference.
Flat and low-slope roof projects where a Soprema torch-on SBS modified bitumen system is specified, preferred, or better suited to the assembly.
Single-ply TPO membrane
IKO InnoviTPO
IKO InnoviTPO is a single-ply thermoplastic polyolefin membrane used for commercial and low-slope roofing applications. TPO is heat-welded at the seams and can be specified in different thicknesses, attachment methods, and system assemblies.
Commercial and low-slope roof systems where a single-ply membrane is the better fit than a torch-on modified bitumen assembly.
Where These Products Are Used
Flat roofing products are used where the roof needs a membrane system.
These products are for roof areas where standard shingle roofing is not appropriate. The right system depends on slope, water movement, roof access, walls, penetrations, drainage, and how the roof area is used.
Low-slope roof sections
Flat roofing products are used on roof areas with lower slope where shingles are not the proper waterproofing approach.
Garages, additions, and transitions
Many homes have flat roof sections over garages, porches, additions, balconies, or tie-ins where membrane roofing is required.
Commercial and utility roofs
TPO and modified bitumen systems can be used on commercial roof areas, utility structures, and low-slope buildings depending on the specification.
Roof areas with drains, curbs, and penetrations
Flat roofs often include drains, scuppers, HVAC curbs, vents, skylights, walls, and edge details that need careful membrane work.
What Product Choice Does Not Replace
The membrane matters, but flat roofing depends on the whole system.
A good product cannot make up for poor slope, weak drainage, bad edge metal, careless seams, missing cover board, failed substrate, or poorly handled wall and curb details.
Slope and drainage
Flat roofs still need water movement. Drains, scuppers, gutters, crickets, tapered insulation, and roof layout all affect performance.
Seams and laps
The system depends on correct seam welding, torch work, laps, transitions, corners, terminations, and manufacturer-specific detailing.
Walls, curbs, and edges
Parapets, roof-to-wall transitions, curbs, skylights, vents, pipe details, edge metal, and termination bars need careful attention.
Substrate and assembly
Deck condition, vapour control, insulation, cover board, fastening, adhesives, and fire/code requirements can all affect the final system choice.
Product Page FAQ
Flat roofing product questions.
These answers explain how IKO Torchflex, SOPREMA SOPRALENE FLAM, and IKO InnoviTPO fit into flat and low-slope roof assemblies.
Which flat roofing products are listed on this page?
This page is built around three flat roofing product families: IKO Torchflex, SOPREMA SOPRALENE FLAM, and IKO InnoviTPO. Torchflex and SOPRALENE FLAM are torch-on SBS modified bitumen systems, while InnoviTPO is a single-ply TPO membrane system.
Is torch-on roofing the same as TPO?
No. Torch-on roofing usually refers to heat-applied SBS modified bitumen membranes. TPO is a single-ply thermoplastic membrane that is typically heat-welded at the seams. Both can be used for low-slope roofs, but they are different systems.
When does IKO Torchflex make sense?
IKO Torchflex makes sense when a project is better suited to a torch-on SBS modified bitumen assembly, especially where a durable base and cap sheet system is appropriate for the roof design.
When does SOPREMA SOPRALENE FLAM make sense?
SOPREMA SOPRALENE FLAM makes sense when a Soprema torch-on SBS system is specified, preferred, or better suited to the flat roof assembly. Exact base and cap sheet selection depends on the project.
When does IKO InnoviTPO make sense?
IKO InnoviTPO can make sense for commercial, utility, and low-slope roof assemblies where a single-ply TPO membrane is preferred over torch-on modified bitumen.
Can shingles be used on flat roofs?
Standard asphalt shingles are not the right product for true flat or very low-slope roof areas. Those areas normally require a membrane system designed for low-slope waterproofing.
Is the membrane the only thing that matters?
No. Flat roofing depends on the full assembly: slope, drainage, seams, substrate, insulation, cover board, wall transitions, curb details, penetrations, edge metal, and manufacturer installation requirements.
Is this page meant to sell a flat roof installation?
No. This is a supporting product page for the broader roofing products section. It explains the flat roofing products we choose from and why they matter in a complete roof system.
Flat roofing products are selected as part of a complete low-slope system.
IKO Torchflex, SOPREMA SOPRALENE FLAM, and IKO InnoviTPO each have a role, but the right choice depends on the roof design, drainage, substrate, detailing, and project requirements.