Inspect the roof area for clutter in buildings where there is no ceiling.
Measure the distance between the trusses. Many times, the distance will be 4' or less. In some geographic areas, due to snow load, the distance will be as close as 2'.
Cut pieces of Tempshield® Reflective Insulation 6" longer than the distance between the ridge pole and the birds mouth.
Staple the insulation to the bottom of the purlins with 5/16" staples, 3" to 4" apart. Turn the edges down and staple to the side of the top cord of the trusses.
Staple the top of the insulation to the ridge pole and the bottom to the top plate at the wall.
Tape all butt seams with foil tape. Make sure the tape is applied so that a proper bond occurs.
Ceiling Installation / Across the Trusses
Inspect the area above and directly below the bottom of the truss for clutter. Pay special attention to water lines above the truss. Water will freeze if left exposed above the insulation.
Install 1" x 2" furring strips across the bottom cord of the trusses on 22" centers by nailing to the truss.
Staple 48" insulation to the furring strips, using 5/16" staples 3" to 4" apart.
Tape all butt seams with foil tape. Make sure tape is applied so that a proper bond occurs. The furring strip (22' on center) method for installation was designed for the bottom of the trusses. The furring strips run perpendicular to the trusses to compensate for any truss which may be unevenly spaced.
Tempshield® Reflective Insulation can be installed either vertically or horizontally.
To install TempShield® horizontally, staple the Standard Edge insulation to the girts using 5/16" staples.
To install Tempshield® Reflective Insulation vertically, nail furring strips on 22" centers and staple Tempshield® 48" Reflective Insulation to the furring strips using 5/16" staples, 3" to 4" apart.
Apply a 3" or 4" aluminum tape continuously over the edges, sealing and securing the insulation, making sure to completely cover the perforations in the tabs. This should ensure that the insulation is air-tight, eliminating air infiltration which otherwise may cause condensation.