Ask for the chemistry and specification
A proposal saying only “elastomeric coating” leaves important decisions unanswered. Request the product name, substrate-specific specification, required primer and detail treatments. Compare acrylic and silicone requirements rather than treating the category as a single product.
Evaluate the roof before the finish
- Existing roof and previous coating identification.
- Condition of seams, curbs, drains and transitions.
- Moisture concerns and any planned removal.
- Preparation, adhesion evidence and inspection records.
Write down the selection rationale
A defensible choice explains which observed conditions support the system and which issues require work first. Use specification questions to turn a product discussion into a documented scope.
This is planning information, not a site assessment or installation procedure. Use current product documents, qualified personnel and site-specific requirements for a project decision.