31 Jan '12, 2am

Dense pack 2x4 walls with cellulose #green

My question/concern is regarding the best approach to take given the following information. I have a 1950's era home built with 2x4 walls. I discovered there is no insulation in the walls, but there is what appears to be a radiant barrier made up of two layers of foil with pleated paper between. My question is two part: Should I dense pack over the radiant barrier and crush it rendering it completely useless, or should I leave the radiant barrier alone, remove the siding and install xps board insulation to the exterior of the skip sheeting, fur out windows and doors, and reinstall siding? Which method would result in the best energy savings and provide the best solution for the building integrity and longevity? Thank you for your time and assistance Cameron

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

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