I tend to think that a much better investment than over-insulating your attic or adding a radiant barrier is ensuring that you have R-30 to R-38 insulation that has been properly installed.

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In contrast, fiberglass insulation, while widely used, often involves higher installation costs and does not provide the same level of energy efficiency as radiant barriers. The choice between radiant ...

Q: I have some things stored in my attic. It was extremely hot up there when I open the closet ceiling cover. The attic floor is insulated. How can I keep it cooler? A: People often are not aw ...

Dear Pablo: Is it more cost effective to install an attic fan or add additional insulation?When the sun shines on your roof, the dark shingles (assuming that you have a shingled roof) collect the ...

This blanket-style attic insulation is easy to cut and install, and the thick insulating material also helps reduce noise and ...

Q. What is your take on using two-sided aluminum material in the attic over existing insulation? I’ve been told it is an idea from NASA that uses material like this to protect astronauts in space.

Q. I want to install reflective insulation in my unfinished attic. Can I do this myself? A. Reflective insulation or radiant barriers can be installed in some attics by do-it-yourselfers.

If installed properly, radiant barriers can be of benefit in an attic with very poor insulation. But for the homeowner who already has R-30 to R-38 insulation in the attic, it won’t help much.