Rain Screen Behind Hardiplan Lapp Siding

Click here to learn about oregon residiential specialty code r703 1 requiring a rain screen space behind siding.

Rain screen behind hardiplan lapp siding.

The devil is in the details in this case the air intake and flow behind the skirt board. Detailing a rain screen wall furring strips space the clapboards away from the wall creating a vent space that helps to dry the back of the siding. Rainscreen between flat to wall siding and the water resistive barrier as a best practice. Mti s corrugated lath strip creates a capillary break that prevents entrapped water and promotes airflow to dry out the siding and substrate.

A rainscreen designed to encourage air circulation behind the siding typically includes furring strips applied vertically. A predictable rainscreen air gap behind fiber cement sidings like hardie plank and hardie shingle adds durability to the exterior. Layered tar paper and flashings behind the furring strips create what is called a drainage plane which alone would protect the house from water even ifthere were no siding. Hardieplank lap siding is not just our best selling product it s the most popular brand of siding in america.

07 46 00. Off the wall surface. Click here for our complete list of technical drawings. The air space behind the shingles allow moisture that soaks in the front of the shingles to dry to the backside as well as the front.

A builder wonders whether he d get the same benefits by applying furring horizontally. For single family construction james hardie recommends installing a 90 efficient drainage plane or a 3 8 inch air gap i e. Architectural spec for cav siding vent system section. Tips for durable fiber cement exteriors.

We re using benjamin obdyke home slicker a plastic mesh matrix that spaces siding about 1 4 in. An air gap between the siding and sheathing. Click here for the rainscreen siding ventilation guide. James hardie recommends that you consult with your design professional if you have questions regarding.