Roof Boards Wet

Plywood is original 49 years old.

Roof boards wet.

Wear soft soled shoes and follow all common safety practices when working on the roof. Rotten boards on your roof can lead to leaks and more rot. Rotted boards are the result of moisture reaching the wood. For safety reasons it is best only to work on the roof when all surfaces are dry.

Inner plywood of roof wet. Moisture trapped inside of insulation is a breeding ground for mold and bacteria. To gain access to the roof use proper ladders or scaffolding which should also be dry to prevent slips. Not wet but some areas slightly damp.

The osb and in fact any wood panels must be allowed to dry completely depending on how wet the panels are this could be a few days before any roofing material is applied to avoid trapping moisture under the roof material that could cause edge swell and buckling. 2 layers of shingles. A wet roof deck is also a slippery deck. Wanted to add more cellulose but installer said it would make wet roof worse.

The asphalt felt paper under the tri flex left in place during the most recent reroof was wet. Trapped water will boil when the sun heats the roof and the shingles will then have small pits where the. It s a problem that demands immediate attention and there are no quick fixes. It is never a good idea to install a roof over wet plywood or any type of roof sheathing.

Evidently the source of the dripping water was not a roof leak but condensation of interior moisture under the vapor impermeable tri flex underlayment. Trapped moisture encourages corrosion of roofing fasteners and rusting of steel studs and wall ties which reduce wind uplift ratings.