Technical Specifications

INSTALLATION INSTRUCTIONS
FURRING STRIPS
Quarrix Building Products | 705 Pennsylvania Ave. S, Minneapolis, MN 55426 USA | Quarrix.com | 800.438.2920
HOW THE CANT STRIP APPLICATION WORKS
The purpose of the cant strip is to elevate the starter course into the same plane as the rest of the slate roof. Without a cant strip, the
slate will not lie properly. Essentially, the cant strip replaces the head or top of the course that is missing. The cant strip should end at the
outside edge of the valley ashing. This will prevent the cant strip from elevating the valley ashing. Quarrix Furring Strips used for the
cant strip application allow air and moisture to vent and drain out of the roof.
The plastic corrugation of the Furring Strip allows air to continually ow between the deck and slate. Meanwhile, moisture is also allowed
to drain beneath the tiles, eliminating backup and pooling of moisture on the deck and behind the cant strip.
CANT STRIP MATERIAL
Quarrix Furring Strips for the Cant Strip Application are a practical and easy venting solution that are made of durable polypropylene (PP).
Quarrix Furring Strips provide both a vertical channel for air and moisture to vent and drain out as well as a horizontal channel to allow air
movements; this minimizes the potential water and vapor penetration of the roof deck. Other benets include:
● Product can be installed with a nail gun
● Material is compatible with most caulks and sealants
PRODUCT FEATURES
● 3/8”+ (10mm) - 24 pieces per bundle (Part # 40246)
● Ideal replacement for wood cant strips - 60% lighter weight than wood
● Easily installed, requiring no special fasteners and no corrosion issues
● Won’t crack or split, easy to handle and store
● Cuts easily with a utility knife
1-1/2"
4' 4"
3/8"
Cant Strip
Starter Slate
Drip Edge
Cant Strip
Deck
Ice & water shield
ashing strip
Ice & water shield
30# Felt
Caulk this
leading edge
SLATE ROOF DETAIL
CANT STRIP APPLICATION
INST-FS09-3.23.18