Roof Boards Wet

2 layers of shingles.

Roof boards wet.

Rotten boards on your roof can lead to leaks and more rot. Inner plywood of roof wet. Attic insulation combination of fiberglass covered by cellulose. The asphalt felt paper under the tri flex left in place during the most recent reroof was wet.

To gain access to the roof use proper ladders or scaffolding which should also be dry to prevent slips. It s a problem that demands immediate attention and there are no quick fixes. Plywood is original 49 years old. Wanted to add more cellulose but installer said it would make wet roof worse.

A wet roof deck is also a slippery deck. And when we slit the asphalt felt and pulled it back we found roof boards that were soaking 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. Not wet but some areas slightly damp.

For safety reasons it is best only to work on the roof when all surfaces are dry. 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. Wear soft soled shoes and follow all common safety practices when working on the roof.

Moisture trapped inside of insulation is a breeding ground for mold and bacteria. Trapped moisture encourages corrosion of roofing fasteners and rusting of steel studs and wall ties which reduce wind uplift ratings.