08 Aug '11, 12pm

Green Building Q&A: Keeping moisture out of a closed crawl during construction

Was just reading Carl's article on closed crawlspaces butdecided to post in Q&A. We too have seen some issues with closed crawls, mostly on retrofits of existing crawls that have been done improperly by others . Saw one the other day where the crawl was closed in but no ventilation (supply air, etc.) was provided. The entire floor system rotted so badly you could break the joist with your hands. I think if conditions are not perfect, in our climate (NC 3A), the conditions can worsen more quickly in a closed crawl as opposed to a vented crawl where most get wet during the summer and then dry out during the winter. This has not turned us away from closed crawlspaces, we still install them and recommend them, but stress the importance of monitoring these spaces to our home owners. Due to all of the issues we have seen, we now only use the exhaust only approach and install a d...

Full article: http://www.greenbuildingadvisor.com/community/forum/green...

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straitstimes.com 17 Aug '11, 3am

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friedbeef.com 09 Aug '11, 5pm

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