Application Guides
A solar-reflective roof finish depends on the condition and continuity of the roof beneath it. This guide moves from a condition survey through preparation, detail repair, controlled work zones, inspection and handover without turning field observations into unsupported performance claims.
Mark the roof area, substrate transitions, drainage direction, penetrations, access routes and interfaces with work that is outside the coating scope. Record which existing layers are intended to remain and which areas require removal or repair before application.
The boundary should be practical for preparation, continuous application and later inspection. Avoid dividing the work where a seam, drainage path or difficult detail would be left incomplete.
Record corrosion, retained coating, cracks, joints, fasteners, drains and leak-prone details before cleaning changes the evidence. Separate visible surface condition from the causes of recurring water entry or movement.
Check corrosion at laps, cut edges, fixings, gutters and contact points. Identify loose or incompatible retained coating and confirm whether local preparation can produce a stable boundary.
Check moisture paths, cracks, weak laitance, repairs, joints and local ponding. Active movement, leakage or unstable repair material should be resolved before a continuous finish is planned.
Correct leak-prone joints, loose fasteners, open penetrations, unstable edges and drainage defects before the reflective finish is applied. A coating layer should not be used to conceal an unresolved roof defect.
Confirm the repair material, primer and retained coating are compatible with the verified substrate and the intended finishing system. Unknown layers require a representative compatibility check rather than an assumption.
Define cleaning, removal and preparation by substrate and roof condition. Protect accepted areas from dust, moisture and traffic while adjoining work continues.
Where retained coating, repair interfaces or application access are uncertain, use a representative trial area. Record its location, preparation, materials, environmental observations and inspection result before releasing the wider zone.
Sequence each zone so edges, laps, screws, penetrations and drainage details remain continuous. Keep the same zone references in preparation, application, inspection and repair records.
Avoid rain, condensation and strong wind during preparation and application. Project instructions should define the acceptable application window and any required protection while the layer develops.
Inspect the details most likely to interrupt continuity rather than relying on the appearance of the open roof field. Check work-zone boundaries, repaired areas and substrate transitions before release.
Record defects against the zone map, complete the approved repair, and repeat the relevant continuity and acceptance checks before handover.
The handover record should identify completed zones, materials, repairs, inspection evidence and maintenance-sensitive details. Retain overview and detail photographs that can be returned to during later inspection.
If a field temperature comparison is made, use comparable locations, timing, ambient conditions and instruments. Report the observation boundary and do not convert a limited roof reading into an unsupported saving, lifetime or building-performance claim.
This guide supports application planning but does not replace structural roof assessment, leak investigation, fall-protection planning, substrate-specific instructions or the approved project procedure. Active leakage, structural weakness, unknown retained layers and unsafe access require separate resolution.
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