Looking to slash your energy bills and make your attic or workshop more comfortable? This heavy-duty radiant barrier is a great solution. This roll covers 1000 square feet of reflective insulation that works by blocking radiant heat transfer, helping keep spaces cooler in summer and warmer in winter. It's a heavy-duty \plus\ grade material that's perforated, which is important because it allows moisture vapor to pass through, preventing potential mold issues (check your local building codes for proper installation). The 'no tear' feature means it's durable and easier to handle during installation without ripping. From the brand IES, this is a brand-new roll in its original packaging. It's a cost-effective DIY project for homeowners wanting to improve their home's efficiency, insulate a metal building, or create a reflective barrier in a garage. Keep the heat where you want it!