INSTALLATION INSTRUCTIONS
NOTICE
Suspender Bar provides a means of fiberglass insulation suspension only. Performance of the fiberglass and vapor retarder are the responsibility of the manufacturers of those products and the contractors who install them. Care should be taken by the installer to seal vapor retarder penetrations.
Safety should be of utmost consideration in any installation. Suspender Bars should be installed from a secure work platform such as a scissor lift or movable scaffolding. Proper and safe installation requires two people.
The Suspender Bar system is designed to be installed from the underside of the roof structure. The metal building erector should completely sheet the roof before installing the insulation. It is recommended that a thermal break such as foam strips or blocks be installed between the top flange of the purlin and the roof sheeting, breaking the metal to metal contact.
Attaching spring clip to bar.
Remove clip from the packaging sleeve. Grasp clip in hand Slightly squeeze the wings of the clip inward. ( this will make the clip fit snugly onto the bar)
Hold clip in left hand with top hook pointing to left and bar in right hand with break in the bar pointing upward.
Slide clip over end of the bar about 3 inches. The wings of the clip will slide over the legs of the bar.
Installing insulation with Suspender Bars
Begin in a corner of building. Fasten end of insulation and vapor retarder rolls to the end wall ,over the end wall framing with tape, pins, or screws.
(High R value systems may use two layers of insulation. Both layers of insulation should be unrolled and installed concurrently. Start the unfaced layer then begin with the faced layer right underneath. OR a single unfaced layer of fiberglass and unlaminated vapor retarder may be used.)
Roll out 4 to 6 feet of insulation and vapor retarder. Temporarily support the roll or rolls by hooking a Suspender Bar to the purlin flange and resting the other end of the bar on top of the eave girt.
Align insulation, smoothing out wrinkles in facing. Tab on insulation roll may be adhered to bottom of purlin flange. Tab on the eave edge may be tucked over top of eve girt or glued or taped to the eave girt.
Two feet from end wall make a small slit in vapor retarder at edge of purlin flange.
Hook spring clip of Suspender Bar onto purlin flange through the slit. Opposite end of Suspender Bar rests on top of eave girt. The Suspender Bar should overlap the bottom of the purlin flange at the spring clip end 3 or more inches. The slit in the vapor retarder should be sealed with a small amount of caulk.
Repeat at two foot intervals.
Continue in similar fashion along side wall:
Apply adhesiveUnroll roll or rolls.Align and smoothAdhere tab to purlin flangeInstall Suspender Bars.Where roll ends butt together the seam of the facing material should be taped with a tape compatible with the facing material.
The other runs of insulation are installed in the same way as the side wall run with two differences.
The insulation facing tab meeting the previously installed roll should be glued and taped along the purlin flange for maximum vapor retarder effectiveness.
As Suspender Bars are installed in succeeding rows the end of the bar without the clip is supported by slipping it over the previously installed bar.
At the ridge of the roof it may be necessary to use two clips on the suspender bars. The clips should be installed with the top hooks pointing toward the center of the bar. The bars are supported at each end by the top purlins on each roof side.
Alternate Ridge: Extend Suspender Bars beyond purlin flange
IMPORTANT HINTS
Order your insulation rolls from your supplier cut to fit the width between purlins. Typically this is 5' but sometimes it is less.
Faced insulation may be ordered with adhesive strips pre- attached to the tabs. This can eliminate the step of applying spray adhesive to the purlins.
Facing seams along the length of purlins must be taped.
Suspender Bars may be easily trimmed to length with good quality metal snips.
