INSTALLATION INSTRUCTIONS
ATTIC PROTECTION
Quarrix.com
|
800.438.2920
10
& SHINGLE ROOFS
Cedar Shake
1. Ridge Ventilation Slot Preparation
The slot may be precut on a new roof before or after shake installation or in a retrofit, the slot can
be cut from the roof using a circular saw with a carbide tip blade (protective eye goggles should
be worn during this process). For
5
⁄
8
” profile vents, cut a 2” slot (1” on each side of ridge) along the
ridge(s). For a roof with a center beam, a 3
1
⁄
2
” slot should be cut (1
3
⁄
4
” on each side of ridge). For 1”
profile vents, cut a 2
1
⁄
2
” slot (1
1
⁄
4
” on each side ridge). For center beam applications a 4” slot should be
cut (2” on each side of ridge). A minimum of 6” must be left uncut on each end of the ridge.
3. Vent Placement on Ridge
Before installing the vent on the ridge, apply a bead of sealant on each side of the ridge
slot. This sealant should fill any voids between the bottom of the vent and the surface of the
cedar shakes. Use either butyl sealant conforming to ASTM C1085; latex sealant conforming
to ASTM C834; silicone sealant complying with ASTM C920 or asphalt roofing cement
complying with ASTM D4586. Roll out or place vent along the entire length of slot also
covering the 6” minimum uncut ridge on both ends. When using
StormStop
products,
secure at the lead edge with end cap. Nail should penetrate roof deck a minimum of
3
⁄
4
”.
Pull the vent tight and secure at about 10 feet. Pull the rest of the vent tight and secure,
inserting the end cap. Multiple lengths of vent can be joined by butting the sections tightly
together. An end cap should be inserted at the end of each section.
Note: For “Class A” Installation Only
For “Class A” Quarrix vent installation, follow steps 1, 2, 3 as stated above. Once the vent has been
installed, use a utility knife with a hook blade and remove the corrugated plastic center section of
the vent. Do this for the hip and ridge. This modified installation meets the requirements for UL790
“Class A”, standard installation meets the requirements for UL790 “Class C”. Follow remaining steps
4 as stated.
2. End Cap Installation
Pull apart a precut section of the foam end cap found with the vent. For products with StormStop,
using a utility knife, make a cut in the StormStop material
1
⁄
2
” on each side, back from the end of the
section. Using construction adhesive or sealant caulk, coat both sides of
the StormStop material where it has been cut back at the end of the vent.
Insert the foam end cap with the cut back StormStop material between
the foam end cap and the underside of the vent to assure a weather-
tight seal. Attach vent to the roof deck by driving a nail in each of the two
corners on both ends of the vent. Also, drive two nails through the vent and
foam end cap to hold foam in place on the ends of the ridge only. Nails
should penetrate the wood roof deck at least
3
⁄
4
”. It is not recommended
to nail vent to ridge prior to cap shake installation.
INST-SSRV01.0
2
.0
4
.21
Distributed by Best Materials® LLC
http://www.bestmaterials.com | 1-800-474-757
http://www.bestmaterials.com | 1-800-474-7570
[email protected] | http://www.bestmaterials.com | 1-800-474-7570
http://www.bestmaterials.com | 1-800-474-757
http://www.bestmaterials.com | 1-800-474-7570
[email protected] | http://www.bestmaterials.com | 1-800-474-7570
