28 Nov '11, 2am

radiant barrier in CZ3 #green

I am considering a radiant barrier application in my attic. I have heard that a radiant barrier is most cost effective in terms of ROI when ducts are located in the attic. I have already removed my ducts from the attic and replaced in my basement to improve efficiency. I get a ton of solar gain on my roof year round with very little shade during summer months. I wonder if this condition would make a radiant barrier a good application for my roof even without ductowrk in attic. Does anyone out there have an opionion/experience with a situation like this? Thanks. My conditions include: roughly 950 square foot surface area of ceiling. R30 insulation in attic iis planned Open lot with few trees, roof tops gains 5-6 hours of direct sunglight during summer months.

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

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