FLAT & LOW-SLOPE ROOFING · GREATER MONTREAL514 556-2864
ALLIANCE ROOFING

Elastomeric membrane for flat roofs

A modified-bitumen roofing project starts with an assembly that suits the building. Compare system options, installation details and replacement scope before deciding.

SOPRALENE FLAM 250 GR modified-bitumen membrane — SOPREMA
Manufacturer product image

Understanding two-ply systems

The base sheet and cap sheet serve complementary roles. The cap sheet may have a granulated surface. Installation depends on the product: do not assume every system must be torch-applied.

Repairing the right details

An open seam, damaged flashing and wet insulation call for different responses. Reviewing the covering, substrate and connections helps determine whether a repair or replacement is appropriate. Repairs must be compatible with the existing membrane.

Comparing a complete proposal

Ask for exact products, attachment method, parapet work and site protection measures. Colour, local requirements and manufacturer instructions need to be checked for your property.

Prepare your request

Share the building address, the issue you have observed and the roof type. We can discuss the information needed and options for a visit.

Discuss my project
Your roof deserves a clear plan.

Let’s talk about your project, priorities and next steps.

Call now
514 556-2864
EXPLORE FURTHER

Your area. Your questions.

Products for this system.

Compare components and review manufacturer documentation.

Explore the SBS catalogue
PREPARE YOUR REQUEST

What to clarify before work starts.

  • Documented condition of retained layers
  • Manufacturer-required testing and preparation
  • Details, exclusions and planned maintenance