Roof Boards Wet

A wet roof deck is also a slippery deck.

Roof boards wet.

Not wet but some areas slightly damp. Inner plywood of roof wet. Rotten boards on your roof can lead to leaks and more rot. Attic insulation combination of fiberglass covered by cellulose.

To gain access to the roof use proper ladders or scaffolding which should also be dry to prevent slips. The asphalt felt paper under the tri flex left in place during the most recent reroof was wet. Wet insulation means trapped moisture that will slowly degrade the entire roofing system from the decking to the building itself. Plywood is original 49 years old.

Moisture trapped inside of insulation is a breeding ground for mold and bacteria. Trapped water will boil when the sun heats the roof and the shingles will then have small pits where the. Evidently the source of the dripping water was not a roof leak but condensation of interior moisture under the vapor impermeable tri flex underlayment. 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.

For safety reasons it is best only to work on the roof when all surfaces are dry. And when we slit the asphalt felt and pulled it back we found roof boards that were soaking wet. Trapped moisture encourages corrosion of roofing fasteners and rusting of steel studs and wall ties which reduce wind uplift ratings. Wanted to add more cellulose but installer said it would make wet roof worse.

It s a problem that demands immediate attention and there are no quick fixes. Rotted boards are the result of moisture reaching the wood.