Need an easy, no-itch way to add insulation? This Reflectix roll is a DIY favorite. It's like a giant roll of bubble wrap sandwiched between two super-reflective foil layers, and it works by reflecting radiant heat.
The roll is big: 4 feet wide and 50 feet long, giving you 200 square feet of coverage. The core is two layers of heavy-duty polyethylene bubbles (about 5/16\ thick) that provide some insulating R-value and make the material strong and easy to handle. The shiny aluminum foil surfaces on both sides reflect up to 96% of radiant heat.
It's incredibly simple to work with. You just measure, cut it with a utility knife, and staple it in place. No protective suit needed—it doesn't shed fibers. This particular model (BP48050) has a \square edge,\ which is great for general use. If you're stapling to studs or joists on 16\ or 24\ centers, they make a \staple tab\ version that's even easier.
People use it in attics, crawlspaces, garage doors, behind radiators, or even in RV walls. It won't replace thick fiberglass batts for main wall insulation, but it's fantastic for adding a reflective barrier to stop heat transfer. Easy, clean, and effective.
