Installing Attic Radiant Barrier Between The Rafters

In an open framed attic it is generally easiest to install the strips of radiant barrier roof material across the attic perpendicular to the direction of the roof joists overlapping each run by about 2 inches.

Installing attic radiant barrier between the rafters.

Before the roof sheathing is applied the radiant barrier is draped over the rafters or trusses in a way that allows the product to droop 1 1 2 to 3 inches between each rafter. Unroll and staple reflective insulation to the under side of the rafters. The results were very telling. How to install radiant barrier on attic rafters in 5 steps step 1.

The most effective place to install a radiant barrier is underneath the bottom truss of the roof deck. Installation methods include radiant barrier draped over the rafters applied directly to the roof sheathing stapling to the bottom of the rafters and even laying radiant barrier on top of the attic floor insulation. Roofs under 8 ft tall from inside the attic sq footage x 1 2 for really. In a new house an installer typically drapes a rolled foil radiant barrier foil face down between the roof rafters to minimize dust accumulation on the reflective faces double faced radiant barriers are available.

Determine how much you need. Some of these installation methods are preferred over others but all have sufficient research and. A radiant barrier discussed in further detail within this article will stop the radiant heat from reaching the attic. Measure and cut the foil before going in the attic.

The first is stapling foil to the bottom of the roof rafters the second is laying it out over the existing attic ceiling insulation. Radiant barrier paint performed the worse providing a heat decrease in the conditioned space of around 19. In locations 3 and 4 the radiant barrier is attached to either the faces or bottoms of the rafters or top chords of the roof trusses. Seal all seams with aluminum foil tape.

Start by cutting your pieces first. Radiant heat can affect the air ducts. Staples should be placed 14 to 18 inches apart. This step makes the installation go easier because it.

If you live in a slab foundation home then your air ducts are probably located near the ceiling and attic. Unroll the radiant barrier hold in place and staple to bottom of roof joists. Using a radiant barrier. Which type of radiant barrier is best.

Install furring strips to the underside of. Install unfaced mass insulation between rafters ensuring a minimum of 1 ventilation space between the mass insulation. Methods like the flat top and the hybrid are just modifications of the standard staple up method. The heat from the roof then travels into the attic.

To expedite the install process we recommend cutting the foil pieces outside the attic space. For the majority of installations there are basically two different methods used to install radiant barrier foil in an attic. A control study was published in 2013 showing the radiant barrier effectiveness of paint foil backed sheathing and foil that was stapled onto the rafters.