28 Aug '13, 9pm

Once again, its not the fun stuff like a kitchen renovation but well worth the time and money.

The research results correlate well with long-standing advice on air-sealing. “When you stack up these results with typical air-sealing advice, the list passes the gut check for what has been said for a long time,” Wolf told me. “That might be deflating, since we just found out what the industry already knew. But what is novel about this is that we have quantified the amount of leakage per unit length for all of these joints. We know for a top-plate-to-drywall crack how many cfm50 per foot that the crack leaks. And we can take those parameters to do calculations: ‘Is it worth it to me to seal this particular joint?’ With the information we have, you can calculate that if you have 100 feet of this type of joint, the sealing ought to be worth about so much to me from a blower-door standpoint. We can use the information to help make strategic decisions.”

Full article: http://www.greenbuildingadvisor.com/blogs/dept/musings/ge...

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