Option one:

• Start at back of attic and work toward attic door.
• Lay Fan-fold directly over the top of the ceiling joists, insulation and A/C ducting
• Cut openings in the product above any heat generating devices (ex: light mounted in ceiling). i.e. can lighting
• Lay seems side by side.
• Drape over any ducts close to the attic floor.
• Cut around trusses and bracing work as necessary and use reflective tape as needed.
• For sloped areas use staple gun or reflective tape to fasten to joist.
• DO NOT cover Furnace, Gas Water Heater or any heat generating Mechanical Devices.

Option two:

Tools needed [safety glasses, staple gun, scissors or utility knife]

Underside of Rafter

• Make any needed repairs to attic area before installing Fan-fold.
• Unfold the Fan-fold product and cut to suitable lengths as needed.
• Install the product perpendicular to the rafters with a 1” to 2” overlap on the seams (no taping required). Staple the product to the rafters at 6” to 8” intervals.
• Allow for proper ventilation. Be sure not to block ventilation paths when you install Fan-fold.
• Try and leave a 2” to 3” gap on each side of the roof peak and a gap at the lower edge of the roof line, within 18” is ok.
• Staple to the face of the studs on gables and insure at least a 1” gap around all vents.

*** This method of installation for any radiant barrier is not recommended 
       where the attic ceiling height is eight feet or taller.