Wet Roof Decking During Construction
Generally plywood roof decking that has gotten wet and had the shingles applied over it if allowed to dry.
Wet roof decking during construction. When a roof deck is exposed to water and absorbs enough to swell it should be allowed to dry out before any roofing material is applied to avoid trapping moisture under the roof material that could cause the edges to swell or buckle. Homeowners often worry that the wood is ruined if a house gets wet during construction. Certainly it would have been better to have covered the roof with a tarp or roofing felt before it rained. Our osb is rated exposure 1 and that means that it will withstand normal delays in construction.
Is it okay for a house to get wet while. Normal delays and the rain you indicated will not affect the structural properties of the panels. A dried in house includes. Most roofs rafters are set 2 feet apart and the plywood decking should be a.
September 17 2020 firestone building products llc fsbp an industry leader providing trusted. Installing shingles over wet decking also will void any warranty you might have from the shingle manufacturer. Water can cause problems if the lumber is allowed to stay wet for weeks and weeks so do whatever is possible to get a roof on the house. Remember dried in means that the building shell has been completed.
My builder says this is normal and i still get my 10 year warranty. Doing so goes against the building codes in most communities and the shingles won t adhere. Osb like all other wood will expand. Wet or rain soaked framing lumber will not rot in a matter of days.
The roof is partially framed and every piece of lumber and all the flat osb is soaked.