Roof Boards Wet

Inner plywood of roof wet.

Roof boards wet.

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. To gain access to the roof use proper ladders or scaffolding which should also be dry to prevent slips. Wet insulation means trapped moisture that will slowly degrade the entire roofing system from the decking to the building itself. Wanted to add more cellulose but installer said it would make wet roof worse.

Not wet but some areas slightly damp. Moisture trapped inside of insulation is a breeding ground for mold and bacteria. Attic insulation combination of fiberglass covered by cellulose. It is never a good idea to install a roof over wet plywood or any type of roof sheathing.

Rotten boards on your roof can lead to leaks and more rot. 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. A wet roof deck is also a slippery deck.

2 layers of shingles. Wear soft soled shoes and follow all common safety practices when working on the roof. Trapped moisture encourages corrosion of roofing fasteners and rusting of steel studs and wall ties which reduce wind uplift ratings. Rotted boards are the result of moisture reaching the wood.

Evidently the source of the dripping water was not a roof leak but condensation of interior moisture under the vapor impermeable tri flex underlayment. For safety reasons it is best only to work on the roof when all surfaces are dry.