Roxul

The Best Way to Insulate a Floor

Posted on March 30,2015 by ScottG in cold floor

Jim Wright's house in western Arkansas has a pier foundation that elevates floor framing about 40 inches off the ground. Unlike a house with a basement, crawl space, or slab foundation, there is no enclosure at the bottom of the house, so the floor is more or less like another exterior wall. How, Wright wonders, should this be insulated?

Mineral Wool Insulation Isn’t Like Fiberglass

Posted on March 30,2015 by lava in Mineral Wool

If you are interested in green building, or call yourself a green building expert, then you should know about mineral wool insulation. If you have not seen mineral wool handled and installed, then you need to read this. If you think that mineral wool batts are similar enough to fiberglass batts that you already know what you need to know about it, then you are a fool. And you still need to read this.

Wrapping an Older House with Rock Wool Insulation

Posted on March 30,2015 by Verdeco in deep energy retrofit

When I first met Chris Gleba and Kris Erickson in December 2011 to discuss their plans for a deep energy retrofit, Chris told me that he had been remodeling his modest two-bedroom house in Lowell, Massachusetts, for over ten years. He had painstakingly rewired and re-plumbed the house and had made energy efficiency improvements (including the installation of a high-efficiency natural gas boiler and radiant in-floor heating). He had also devoted much sweat equity towards upgrading the interior finishes of the kitchen and baths.

Installing Mineral Wool Insulation Over Exterior Wall Sheathing

Posted on March 30,2015 by user-756436 in Mineral Wool

A subset of green builders have always been grumpy about foam. Such builders look at rigid foam panels and spray foam as suspect products: they are made from petroleum, laced with mysterious chemicals, and impermeable to vapor flow.

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