What does the sun do to a beachside covering?
Sun on a beachside roof is strong and steady, and it dries the asphalt and the sealant. Shingles lose their granules on the sunny faces, and the membrane on a flat section stiffens and cracks at the seams. The technician checks each face and records the wear before recommending a repair or a coating.
A coating may suit a sound flat section, and it reflects some of the sun. It is not a fix for a membrane that is split or ponding, and the surface is tested before the product is chosen.
How are the edges and the fascia kept sound?
The fascia, soffit and eave are the parts of the roof most exposed to salt. Paint blisters on the ocean side and the wood behind it softens when moisture is held against it. The trim is primed on every face and checked at each visit, and soft trim is cut out and replaced.
The gutter is checked for corroded brackets and for a channel that has pulled away. A gutter that sags sends water over its front edge and onto the fascia below.
Why does the wind off the ocean matter as much as the salt?
Wind off the ocean tests the covering at its edges. A shingle that was fixed loosely lifts first at the eave and the rake, and a membrane that was not bonded at its perimeter can peel back under a gust. The technician checks the fixing and the lap at each edge before the work is signed off.
Tiles and loose flashing at the ridge are also checked, since a strong wind can move a piece that has been set on a weak bed. Each one is re-set and tested by hand before the crew leaves the roof.