Rainscreen Under Siding

Individual buildings all exterior cladding products including hard siding.

Rainscreen under siding.

Driwall rainscreen is a drainage mat for exterior wall systems. For most residential builders a rainscreen siding installation is one that includes an air gap between the siding and the water resistive barrier the asphalt felt or housewrap. Meets canadian 10 mm rainscreen code requirement. The monofilaments are heat laminated to an impenetrable breathable filter fabric on one side.

The clear choice mortairvent rain screen perfect for all exterior siding applications. Waterway 11mm is a vertical wall rainscreen drainage mat consisting of a nominal 7 16 inch 11mm thick extruded polymer matrix of tangled monofilaments. With vertical board siding use horizontal rainscreen strips. The other common option rainscreen strips can be made of wood plastic or metal.

Note that shingle siding can be installed over horizontal strips. Air moves behind siding in a rainscreen wall entering under the skirt board and exiting above top trim piece. Waterway 11mm is designed for use with manufactured and natural stone traditional and one coat stucco eifs fiber cement and wood based sidings. The entangled net product eliminates incidental moisture problems in most exterior veneer applications including stucco manufactured stone and plank siding.

The devil is in the details in this case the air intake and flow behind the skirt board. A 3 8 inch air gap i e. When planning your vents consider wrapping mesh or screen over the cut end of the rainscreen mat to deter insects from passing into the airspace. The first part of the system is the heavy duty sturdi strip furring.

If you are installing horizontal siding use vertical rainscreen strips under it. We re using benjamin obdyke home slicker a plastic mesh matrix that spaces siding about 1 4 in. Off the wall surface. Rainscreen or no rainscreen looking back at the picture on the op those long horizontal flush joints look awfully vulnerable to me especially with a milled top edge to the siding material.

I did this at the top and bottom of the rainscreen mat using flaps of fiberglass screen. Rainscreen between flat to wall siding and the water resistive barrier as a best practice. Our innovative rain screen technology equalizes the air pressure within the wall system by creating a drainage and ventilation cavity between the weather resistant barrier wrb and the exterior wall. The 7 16 thick sv 3 rainscreen siding vent solves these problems with a minimum amount of work and expense.

If i were the contractor on a project where the client was insisting on this look i d plug a serious disclaimer into my warranty document and recommend.