Rain Screen Behind Siding

Wood sidings installed directly over foam sheathings are more prone to problems such as cupping cracking and paint failures than wood siding installed over wood sheathings.

Rain screen behind siding. Venting behind your siding is just as necessary and valuable as venting your attic. Off the wall surface. Air moves behind siding in a rainscreen wall entering under the skirt board and exiting above top trim piece. The key is to isolate the housewrap or tar paper from the siding rain screen walls have an airspace between the siding and the building paper or house wrap.

Venting behind your siding is just as necessary and valuable as venting your attic. A simple effective solution for rainscreen ventilation behind wood hardboard fiber cement siding. Courtesy cosella dörken the wall is perhaps the most misunderstood and poorly devised assembly in the modern. Trapped moisture from driving rain or condensation can cause major problems.

The clear choice mortairvent rain screen perfect for all exterior siding applications. 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. Compatible bug screen and flexible sealing tape are also available. James hardie recommends that you consult with your design professional if you have questions regarding exterior wall drainage on your single family project.

Delta dry is an hdpe roll material at the core of cosella dörken s delta rainscreen system. 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. Mti s sure cavity and corrugated lath strip create a capillary break that prevents entrapped water and promotes airflow to dry out the siding and substrate. Installed behind a rain screen plastic housewraps can work.

I did this at the top and bottom of the rainscreen mat using flaps of fiberglass screen. A predictable rainscreen air gap behind fiber cement sidings like james hardie plank and hardie shingle adds durability to the exterior. A simple effective solution for rainscreen ventilation behind wood hardboard fiber cement siding. Trapped moisture from driving rain or condensation can cause major problems.

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. A 3 8 inch air gap i e. Individual buildings all exterior cladding products including hard siding. The devil is in the details in this case the air intake and flow behind the skirt board.

Build a rain screen wall sidebar facing page. A rain screen design will improve the longevity of any siding and finish but it is critical when installing wood siding over foam sheathing. Rainscreen between flat to wall siding and the water resistive barrier as a best practice. I prefer 15 tar paper because of its century old track record.