This radiant foil attic insulation by US Energy Products is a solid option when paired with another insulating material like foam board or blanket insulation because radiant foil can reflect up to ...

Sealing your attic is another one of those timeless DIY ... If you can’t find the reflective foil insulation (Photo 3), substitute drywall or pieces cut from 4 x 8-ft. sheets of rigid foil ...