Barrier Under Vinyl Siding

In particular homes sided with wood can usually benefit from house wrap barriers since they have many seams where the boards overlap.

Barrier under vinyl siding.

Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior. By doing so however you miss out on the opportunity to add add energy savings to the project. Why do homes need house wrap. 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.

For homes with vinyl siding many homeowners are under the false assumption that vinyl is waterproof. It should be noted that the redundant barrier approach works reasonably well with sidings that overlap like clapboards lap siding and vinyl siding. The barrier should be resistant to liquid water and air infiltration while being permeable to water vapor. Vinyl siding can be installed directly over wall sheathing wood siding or stucco.

This is often referred to as a house wrap. Engineered for lasting performance and superior resistance to high winds great barrier offers peace of mind to contractors and homeowners alike. To sum it up house wrap is a lightweight paper like material that is most often used to completely cover the house directly on top of the sheathing and behind the vinyl siding. Siding that s assembled from large panels such as vinyl or aluminum cladding also makes a good candidate too since water can enter through cracks where the pieces are joined.

Without an air gap the foil will not work. These siding applications leave small air spaces between the sheathing wrap and siding. To further protect the home a waterproof barrier should be installed between the siding and the home. Canadian requirements for requirements for a moisture barrier beneath vinyl siding 1 caulking shall be provided where required to prevent entry of water into the structure 2 caulking shall be provided between masonry siding or stucco and the adjacent door and window frames or trim.

With siding materials like vinyl or hardie board we recommend you use furring strips thin wooden strips that you can lay either perpendicular horizontally or parallel vertically across the wall studs to create the necessary air space behind the siding.