Does Wood Siding Need Flashing

It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc.

Does wood siding need flashing.

Without the flashing in place water would roll down the vinyl siding and contact the top of the fascia board. Install the kickout flashing underneath the first shingle photo 1. Add felt if needed before nailing the new wood on and prime the new wood on all four sides before installing it. Siding nails should not be caulked.

Therefore the upper piece of wrap or flashing should always overlap any lower pieces. Inside corner w flashing. In certain instances flashing may need to be installed on the exterior of siding. Metal flashing or any metal to wood joint should not be caulked another water exit pathway that should never be sealed.

Click to enlarge any image. It would run along the top until it found a tiny crack and then it might flow behind the fascia. And when those corners. Also see windows doors.

Siding details at roof wall joint step flashings to avoid rot. This could cause a leak indoors or start to rot the wood fascia board the wall sheathing or any other wood indoors. Also avoid caulking tongue and groove siding boards together. But unlike fiber cement siding wood is almost sure to rot.

Never caulk the joint between the siding and the head casing or the sill leaving these joints open to drain any trapped water. Stop wood sidings at least 1 inch short of the bottom leg at step flashings and other roof flashings. As part of the t1 11 installation wherever a wall height requires more than a full sheet of siding a z shaped metal flashing is added at all horizontal seams to ensure a proper seal against rain or moisture. However in most instances step flashing should be installed behind siding.

Start by installing a metal or vinyl base flashing first. The gap should be 1 or more inches behind brick or stone veneer 3 4 inch behind stucco and 1 16 inch behind lap siding wrinkled house wrap will provide this 1 16 inch gap how to construct a drainable wall assembly with wood or fiber cement sided walls. While paint does tend to somewhat glue these pieces together caulking them is never advised and can cause permanent damage. Flashing helps prevent any moisture which can collect due to condensation or small gaps in the siding that flows downward from infiltrating behind the house wrap where it can do damage.