Rain Screen Behind Hardiplan Lapp Siding

Mti s corrugated lath strip creates a capillary break that prevents entrapped water and promotes airflow to dry out the siding and substrate.

Rain screen behind hardiplan lapp siding.

It kind of seems that they should spec furring strips for both. James hardie s installation instructions do not specify a rainscreen for hardieplank on any type of construction. It is used for its new commercial lap siding panel. Corrugated lath strip crea.

A predictable rainscreen air gap behind fiber cement sidings like hardie plank and hardie shingle adds durability to the exterior. 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. My question is why is james hardy requiring these furring strips with their new panel and not their normal lap siding. Rainscreen between flat to wall siding and the water resistive barrier as a best practice.

Sidings like hardie board lp smartside and natural cedar benefit from a rainscreen air gap between the siding and the housewrap. The devil is in the details in this case the air intake and flow behind the skirt board. James hardie recommends that you consult with your design professional if you have questions regarding. Tips for durable fiber cement exteriors.

In most jurisdictions including alberta a rainscreen system is not required for james hardie lap siding. Rainscreen behind hardie panel b amp b hardy plank came out with a new furring strip. For single family construction james hardie recommends installing a 90 efficient drainage plane or a 3 8 inch air gap i e. It is a much tougher product and easy to install.

We re using benjamin obdyke home slicker a plastic mesh matrix that spaces siding about 1 4 in. Off the wall surface. 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.