Roof Decking Rotting

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 rotting.

Once all nails and screws are removed lift the rotted decking board up and off the roof. What causes roof decking to rot. 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. Roof decking sits beneath the shingles used to protect the house from the weather.

Use caution for this step. 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. Moisture that passes this covering and seeps into. Outdoor decks can provide years of service as the go to spot for entertaining barbecuing or just relaxing on a sunny day.

Roof decking is the actual foundation of your roofing system. Roof decking or sheathing refers to the thin boards of wood that span the trusses and support the rest of the roof. Water is your roof s number one enemy. Water seeps into your roofing system in many different ways.

It s what connects the roof of your home to the rest of the house. Roof decking is usually made from plywood though your roof decking may also be made from a composite form of that material. I m starting to have some rot issues with my 10 year old deck. Whether you are replacing your entire roof or repairing a small area fixing rotten sections of roof decking or sheathing is vital to creating a sound watertight structure.

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. 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. This is the leading cause of roof decking rot water pooling and eating away at materials and decking wood. But wood decks are not expected to last forever.

Measure the area where your new board will go. If your roof decking gets wet it can develop wood rot and impact the performance of your whole roof.