Using Brick As Barrier Under House With Siding

When working with stone veneers built over wood frame construction the 2009 international building code section 1405 6 requires two layers of housewrap or other wrb.

Using brick as barrier under house with siding. Basically all model codes agree on the need for a weather resistant barrier paper usually specified as 15 felt or grade d kraft paper behind stucco brick stone and other porous veneers. Novawrap like most of the better housewrap products on the market can be installed under bricks stone stucco eifs rigid foam as well as wood and fiber cement siding. This water impermeable layer beneath the siding protects walls from rain and snow and often functions as a building s air barrier. If you embed a radiant barrier in a wall assembly say behind siding up against the sheathing it won t function.

Unlike wrapping brick or stone exteriors with foil radiant barrier house wrap siding material typically does not have a naturally occurring air gap behind it so you must create one. The paper requirement is typically omitted for other types of siding when they re installed over rated structural sheathing. A micro porous house wrap installed behind masonry can drive moisture into your home s wall cavities. Installing house wrap with rigid foam insulation.

This can be done with wooden furring strips to help give you about half an inch to an inch of air space. But if you re cladding your house in rock or brick you have that air gap behind the masonry and it s a great place to use a radiant barrier.