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.
How to install reflective attic insulation.
Reflective insulation reduces the transfer of radiant energy which accounts for 93 of the heat transfer in most attics.
Unroll and staple reflective insulation to the under side of the rafters.
Roll out the reflective foil in a large.
It s easier to incorporate radiant barriers into a new home but you can also install them in an existing home especially if it has an open attic.
Installing attic insulation location 1.
Seal all seams with aluminum foil tape.
Access the attic and measure the floor space s length and width with measuring tape.
Install furring strips to the underside of.
Over the insulation install laying foil over on top of insulation on the attic floor this is probably the easiest method to install radiant barrier atticfoil is to lay the foil out over the existing insulation on the attic floor.
Old insulation is removed and the attic space is cleaned out.
This method can be used in any climate though it historically has been most popular in colder climates.
Install unfaced mass insulation between rafters ensuring a minimum of 1 ventilation space between the mass insulation.
R values indicated below vary per installation method depending on the size of the air space surrounding the product and the direction of heat flow.
Reflective bubble insulation installation instructions.
There are 3 options 1 underside of rafter method depicted in illustration check the attic area and make any needed repairs before installing reflectix.
Not vapor permeable and therefore serious moisture health and durability problems can result from improper installation.
Location 1 may be used with either new construction or with retrofit of an existing house.
How to install reflective foil in an attic 1.
Reflective bubble insulation applications.
Unroll the reflectix as you work and cut it to suitable lengths 8 to 12 with scissors or utility knife.
Reflective insulation not only saves.
Prodex 48 inch 72 inch or fast action is attached to the bottom of the rafters.
Tape seams with reflective tape.
Next any stored belongings or debris in the attic are removed and stored in a safe location that is out of the way.
Visually inspect the interior roof area.