Roof Decking Rotting

I m starting to have some rot issues with my 10 year old deck.

Roof decking rotting.

Once all nails and screws are removed lift the rotted decking board up and off the roof. Roof decking is usually made from plywood though your roof decking may also be made from a composite form of that material. Outdoor decks can provide years of service as the go to spot for entertaining barbecuing or just relaxing on a sunny day. Rotted roof decking cannot be repaired it must be replaced.

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. What causes roof decking to rot. 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.

Roof decking is the actual foundation of your roofing system. Water is your roof s number one enemy. This is the leading cause of roof decking rot water pooling and eating away at materials and decking wood. 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.

Use caution for this step. 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. 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 or sheathing refers to the thin boards of wood that span the trusses and support the rest of the roof.

Roof decking sits beneath the shingles used to protect the house from the weather. It s what connects the roof of your home to the rest of the house. 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. But wood decks are not expected to last forever.

Measure the area where your new board will go. Water seeps into your roofing system in many different ways.