SuperPerf™ 45″ wide radiant barrier is a double-sided roll that has been punch-perforated for maximum breathability. If you are laying radiant barrier foil on top of existing insulation, you should use SuperPerf™.

This product is an AtticFoil® exclusive and was designed for over-the-insulation installations inside attic spaces. SuperPerf™ is a punched foil (vs the traditional pin-perforations) which allows more water vapor to pass through the foil’s surface; this foil virtually eliminates the possibility to trap moisture underneath it. Just like all of our products, SuperPerf™ is strong and heavyweight, made with pure aluminum.

• You cannot cover SuperPerf™ with more insulation or flooring on top, it must be the top-most layer on your attic floor to work as a radiant barrier.
• Heavyweight Foil 28.6 lbs per 1,000 sq ft roll
• 100% PURE aluminum – this is *not* metalized film
• Linear Footage/Roll Sizes: 45" wide by 133.5' long (500 sq ft) and 45″ wide by 267 ft long (1,000 sq ft). Orders larger than 1,000 sq ft are fulfilled with multiple rolls. 
• Double-Sided (DS) foil on both sides
• Looking for Foil Tape? Click here.
• Need a different size in the SuperPerf? Any of our rolls can be custom cut down to the exact smaller width you need. 
• Exclusive product, designed for installation on top of attic insulation. Install Page Here.
• This foil is NOT rated as a VAPOR barrier; you usually do NOT want a vapor barrier in attic applications.