Roof Decking Rotting

This is the leading cause of roof decking rot water pooling and eating away at materials and decking wood.

Roof decking rotting.

Roof decking is usually made from plywood though your roof decking may also be made from a composite form of that material. Use caution for this step. Moisture that passes this covering and seeps into. Water seeps into your roofing system in many different ways.

Lashed by rain and wind and further weakened by sun exposure wood decks can collapse due to rot and other structural imperfections injuring close to 34 000 people annually. Roof decking which is nailed to the roof s trusses holds roofing materials including felt paper and shingles and also serves to stiffen your home s structure and protect it from wind. Roof decking sits beneath the shingles used to protect the house from the weather. Molds and bacteria then become prolific and they produce acidic chemicals that cause a spiraling effect that results in your decking decomposing at a logarithmically increasing rate.

But wood decks are not expected to last forever. Once all nails and screws are removed lift the rotted decking board up and off the roof. Roof decking or sheathing refers to the thin boards of wood that span the trusses and support the rest of the roof. Since roof decking is made from wood and wood composites it is particularly susceptible to rotting and water damage when continuously exposed to sustained or excess moisture.

If your roof decking gets wet it can develop wood rot and impact the performance of your whole roof. It supports the weight of roofing shingles and lays on top of your attic s rafters. I m starting to have some rot issues with my 10 year old deck. Not only are some of the treated wood decking boards rotting but i m also noticing that the tops of some of the joists are.

Prime spots in the attic for wood rot are on the underside of the roof decking in the joints where the wood members connect at the peak of the roof and at the edges of the attic where the. Measure the area where your new board will go. Rotted roof decking cannot be repaired it must be replaced. Roof decking is the actual foundation of your roofing system.

It s what connects the roof of your home to the rest of the house. Water is your roof s number one enemy.