Water Under Vinyl Siding

If the builder failed to install a weather barrier this sort of staining is more likely.

Water under vinyl siding.

The most common causes of water damage behind vinyl siding include the following. In reality although the vinyl material itself is waterproof the numerous seams and gaps that occur during installation aren t. Water vapor may move through the wall construction but it can escape during colder weather. It is a misconception that vinyl siding doesn t need a water.

Another benefit of quality vinyl siding is that it is highly water resistant when correctly installed. The roof and foundation doors windows and any other breaks in siding create opportunities for moisture to seep in. Inspect the area above the leak including both indoors and out. Lack of gutters installed on the top roof of the home.

Water passing over wood and other building materials but behind the vinyl siding can easily pick up pigments that stain the foundation wall outside. Tracking down the leaks in a vinyl sided building. Wood siding and other traditional cladding materials allow the wall to breathe. See water barriers exterior.

Before the vinyl siding is installed on the house a waterproof underlayment called house wrap must be placed on the osb to prevent water from seeping through the siding and reaching the osb where. Check to be sure weep holes are open along bottom of window openings. Vinyl is the rare siding product that remains completely unaffected by water behind it. Since water runs downward unless it s being driven by strong winds the standard method for.

Vinyl siding may permit moisture below the surface the main purpose of cladding like roofing is to keep water out of your house. Rainwater from missing or improperly placed gutters can end up. How to prevent water from flowing under vinyl siding gravity and shedding water. Before installing vinyl siding over existing wood siding or wall sheathing the wood must be dry and in good condition.

Some contractors that favor vinyl may go so far as to say it s borderline waterproof. Use a caulking gun to apply a continuous bead of silicone sealant along the vertical seams between the vinyl. Installing insulation over moisture or existing rot can create larger headaches later. That can be a virtue and a vice.