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Nesgroup address: misc.consumers.house - Date & Time for the message: Fri, 17 Jun 2005 15:45:38 GMT
/ Author of the message: vze8f3tq@verizon.net (v) |
Title of the message: |
Re: Q: Rockwool batts in garage attic OK without vapour barrier?
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Text of the message: |
On Fri, 17 Jun 2005 00:10:25 -0400, someone wrote: >If I insulate the garage attic to R-26 with Rockwool batting (two R-13 >batt layers layed perpendicular to each other), can I avoid installing >any vapour barrier and still retain the R-value of the insulation? As you may already understand, the reason for a vapor barier is that, without it, moisture from the air on the heated side will pass into the insulation where at some point the temp is below the dew point so the vapor will condense out as liquid, potentially soaking your insulation. Frost or ice buildup is a usual result in cold climates; by Spring you can have enough to actually have liquid coming through the ceiling (in extreme cases). SOME kind of vapor resistance is needed. You may be able to adequately treat the garage ceiling to accomplish this, especially if the unheated volume above is well ventilated. Reply to NG only - this e.mail address goes to a kill file. |
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Estaplace.com is one the Ceglia Giovanni projects, started on 20 July 2005, and online since 20 August as a real estate platform for listings, mainly operating on the Italian and American/English market in the Internet, Estaplace would like to become the point of referiment for home sellers and home buyers, a site where private owners or real estate agencies can have the possibility to show their offers to the world. Estaplace.com is only one of the Giovanni Ceglia's sites. Everyday Giovanni Ceglia works to improve new Internet tools and services for online marketing and business. Estaplace.com will become the biggest portal for real estate business and investments online.