TPO Roof Coating Project Planning

TPO is a thermoplastic single-ply roofing membrane. Before selecting a coating system, inspect the membrane, seams, flashings, penetrations, repairs, and drainage. Confirm that every proposed cleaner, primer, coating, sealant, and reinforcement product is compatible with the existing TPO roof and with the other system components.

Document the existing roof

Record the approximate roof area, membrane age, attachment method if known, manufacturer if known, existing coatings or repairs, drainage conditions, and safe roof access. Photograph seams, flashing, penetrations, patches, surface damage, and areas where water remains after rainfall.

Separate repairs from coating preparation

Identify open seams, damaged membrane, failed patches, wet roofing materials, and details that require repair before coating preparation begins. A coating should not be used to conceal conditions that require membrane or assembly repair.

Confirm cleaning, adhesion, and compatibility

TPO surfaces and previous repairs can affect adhesion. Review the current Lexis technical data for every proposed product and complete the specified cleaning, preparation, primer, and adhesion-test procedures on the actual roof. Record the test location, method, products, weather conditions, and result.

Define the application scope

The written scope should identify preparation, repairs, treatment of seams and penetrations, application method, target coverage or film thickness from approved product data, weather limitations, safety responsibilities, and exclusions. Contractors should include those requirements in the proposal. DIY building owners should use the same checklist before ordering materials.

Ask Lexis about product selection

Send the roof type, approximate size, current condition, existing materials, photographs, and project location when requesting guidance. Lexis can use those details to discuss product-selection questions without assuming that one coating system fits every TPO roof.