No Vapor Barrier Mobile Home Siding

Prior to 1976 there were no building codes for mobile homes.

No vapor barrier mobile home siding.

Plywood siding features a rough sawn textured face for a beautiful rustic appearance. But that s not usually necessary what matters is air sealing. House wraps vapor barriers exterior sheathing and backer board if you are replacing your mobile home s siding it is highly recommended to take the opportunity to replace or install the vapor barrier sheathing backer board and insulation. Wall insulation was usually a 1 fiberglass batt so there is often room for additional insulation.

Barricade building wrap is a superb house wrap for steel sided buildings and homes. I do not do to many mobile homes. It plywood siding is an all wood exterior grade panel. However as homeowners discover the advantages of steel siding a.

Is there some code that allows manufactured housing to not adhere to the siding manufacturers requirements. Sometimes the wall assembly included a vapor barrier or an exterior foam sheathing. To know if you need a vapor retarder ask yourself a few basic questions. Perhaps the first thing you need to know is that the presence or absence of an interior vapor barrier is irrelevant.

If you want a vapor retarder on the interior side of your walls you can always apply vapor retarder paint. Siding isn t weatherproof so it needs a second line of defense to keep water from damaging your home. The page top photograph shows that a lot of water more than you might guess may be running over the surface of. This article includes photographs of leaks on and perhaps into a vinyl sided house wall.

Always refer to current local code recommendations when deciding if and how to install vapor barriers. Your vinyl siding will perform as the primary defense against moisture and air leaks but your house wrap comes in strong as a secondary defense. Everything i have read from vinyl siding suppliers says it has to have a moisture barrier behind it. It protects the wall s sheathing and also helps prevent uncontrolled air circulation which will improve your home s insulative abilities.

For example the recommended vapor barrier in a home or office in a humid southern climate built with brick varies greatly from creating a vapor barrier in a cold climate in a home built with wood siding. Plywood siding is an all wood exterior grade panel. Whether or not you need a vapor retarder hinges on three main factors your climate your home and the location of the wall you re insulating. Just vinyl and osb.

It is ideal for siding applications from new home construction utility buildings planters dog houses and other remodeling or do it yourself projects. For years commercial and industrial buildings have utilized steel siding. Walls were built with 2 2 or 2 3 studs. Canadian codes sources.

We describe the requirements for house wrap or vapor or moisture barriers beneath vinyl siding and cite u s.