In “Truss Frame Construction” (FHB #5), Mark White describes a way of holding up insulation with twine so it can easily be installed from above. Here’s an alternative method we used to support 10-in. friction-fit batts in the floor of an addition with a 2-ft. crawl space. First we stapled light-gauge chicken wire to the underside of the floor joists, using 9/16-in. staples. We then dropped in the batts, installed a plywood subfloor and continued framing. The insulation process is fast and easy, with little discomfort to the worker. And the insulation “breathes” well with standard venting.
Doug Jackson, Mission, None
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