Friday, March 1, 2013

All About Rainscreens

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To lower the risk of wall rot, it often makes sense to provide a ventilated air gap between your siding and your sheathing

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[![](http://www.greenbuildingadvisor.com/sites/default/files/imagecache/blog-river/Rainscreen 6 - hi res - 6hillstreet dot blogspot dot com.jpg)](http://www.greenbuildingadvisor.com/blogs/dept/musings/all-about-rainscreens)

[![](http://www.greenbuildingadvisor.com/sites/default/files/imagecache/blog-river/Rainscreen detail 2 - FHB.jpg)](http://www.greenbuildingadvisor.com/blogs/dept/musings/all-about-rainscreens)

[![](http://www.greenbuildingadvisor.com/sites/default/files/imagecache/blog-river/Rainscreen detail - FHB.jpg)](http://www.greenbuildingadvisor.com/blogs/dept/musings/all-about-rainscreens)

[![](http://www.greenbuildingadvisor.com/sites/default/files/imagecache/blog-river/Rainscreen - Homeslicker.jpg)](http://www.greenbuildingadvisor.com/blogs/dept/musings/all-about-rainscreens)

[![](http://www.greenbuildingadvisor.com/sites/default/files/imagecache/blog-river/Rainscreen 2 - 6hillstreet dot blogspot dot com.jpg)](http://www.greenbuildingadvisor.com/blogs/dept/musings/all-about-rainscreens)

Twenty years ago, very few residential builders knew what a rainscreenConstruction detail appropriate for all but the driest climates to prevent moisture entry and to extend the life of siding and sheathing materials; most commonly produced by installing thin strapping to hold the siding away from the sheathing by a quarter-inch to three-quarters of an inch. was. These days, however, it's no longer unusual to see siding being installed on vertical furring strips or a plastic drainage mat. As rainscreens become more common, mainstream builders are beginning to ask, "What's a rainscreen? How do I know if I need one?"

This article will pull together information to answer the most common questions about rainscreen gaps between siding and sheathingMaterial, usually plywood or oriented strand board (OSB), but sometimes wooden boards, installed on the exterior of wall studs, rafters, or roof trusses; siding or roofing installed on the sheathing—sometimes over strapping to create a rainscreen. .

URL: http://www.greenbuildingadvisor.com/blogs/dept/musings/all-about-rainscreens

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