Give a serviceable SBS roof a restoration plan.

Marlex Roofing evaluates commercial and industrial SBS modified-bitumen roofs in the Edmonton area for coating and restoration. An aging membrane is not automatically a failed roof. Where the assembly is sound and compatible with the proposed system, restoration may defer replacement while retaining useful roofing materials.

Is your SBS roof suitable for coating?

Start with the whole assembly: membrane adhesion, laps, blisters, flashings, insulation condition and drainage. The inspection may identify a need for further moisture investigation or testing. Saturated areas and failed materials must be addressed; coating over them is not a repair.

UNIFLEX Silicone44 for an approved SBS assembly

UNIFLEX lists SBS and modified bitumen among Silicone44's recommended uses. This does not approve every existing SBS roof. The surface condition, existing finishes, adhesion results and the manufacturer's system specification determine preparation and whether a primer is needed. Confirm treatment of asphalt bleed-through and the exact surface before application.

Repair, prepare, test, then coat

An SBS restoration scope should address deficient laps, penetrations and flashings, remove unsuitable material and prepare a clean, dry surface. Adhesion testing and the selected manufacturer's requirements guide priming and coating. Coverage and film thickness must follow the specified system rather than a generic paint application.

When SBS replacement is the better investment

Extensive wet insulation, widespread debonding, severe membrane deterioration or structural concerns can make replacement necessary. A coating is not a substitute for correcting those conditions. Compare the cost of the required repairs plus restoration with a properly scoped replacement.

Keep the restored roof in service

Plan regular inspections, clear drains and prompt repairs around rooftop equipment and penetrations. Reassess performance and compatibility before any future recoat. Edmonton weather affects both application timing and maintenance, so build seasonal access and inspection needs into the plan.

Roof coating questions

Can silicone coating be applied over SBS roofing?

Potentially. UNIFLEX lists SBS and modified bitumen for Silicone44, but the exact assembly must meet the manufacturer's system requirements. Condition, preparation, adhesion and any primer requirements need to be checked first.

Can a coating cover wet insulation?

Coating does not dry wet insulation or correct the cause of moisture intrusion. Identify the affected areas and the source of moisture, then establish the necessary repairs or replacement before considering restoration.

Will coating solve ponding or drainage problems?

Do not treat a coating as a drainage repair. Even where a product offers resistance to ponding water, drainage, load and assembly concerns must be evaluated separately.

Should I coat or replace my commercial SBS roof?

Base the decision on a roof assessment and comparable scopes—not age alone. Restoration can be an option for a repairable, compatible assembly; widespread deterioration or moisture problems may favour replacement.

Request a coating assessment · Call (780) 232-4973