It doesn t have to look like that.
Rain on uncovered roof decking.
Ames contouring roof fabric.
Ahem i ll give you a moment to appreciate my wittiness and compose a clev.
Unless the roof is leaking the line you see on the roof is an aesthetic problem but the cupped plywood is putting an added strain on the shingles either side of the visible line.
That doesn t mean that an unexpected rain or drizzle as you indicated won t occur during the roof replacement.
Certainly it would have been better to have covered the roof with a tarp or roofing felt before it rained.
Osb like all other wood will expand when exposed to moisture and i assume the contractor spaced the panels the required 1 8 along the 4 edges and installed h clips along the 8.
If it starts to rain or drizzle the roofers should act quickly to cover your osb most likely with a tarp.
Roof decking sits beneath the shingles used to protect the house from the weather.
Https goo gl hjbxxg next on deck we have rain on a deck.
Our osb is rated exposure 1 and that means that it will withstand normal delays in construction.
Moisture that passes this covering and seeps into the underlayment for the roof can cause leaks into the home and.
Most likely an unsightly mess of water stained crossboards and cobwebs.
Generally plywood roof decking that has gotten wet and had the shingles applied over it if allowed to dry.
One of the roofing pros we spoke with says mist won t affect osb any more than the humidity that osb absorbs on a hot day.
The underdeck ceiling system can turn the ugly space under your deck into an outdoor haven that s dry bright clean and enjoyable without costly reconstruction.
Wood rot can and will start when the moisture content of the wood reaches 20 percent.
Wrinkles and bubbles in the felt will create heat pockets that.
But wood rot is a slow process where the fungi start to grow and feed on the cellulose in the wood.
Shingle roofs are installed every day over wood decking that has been wet by rain.