Installation Instructions

Installation Instructions:
Caution: Always follow Safety Instruction, Building Codes and Safe Work Practices issues by
the local Govt. bodies (e.g. OSHA / WCB)
®
Use: FT Synthetics products are a secondary layer protection approved for installation over plywood with
proper fasteners on roof slopes 2:12 and greater. FT Synthetics underlayment is an air, vapor and water barrier
with <1 Perm and therefore should be installed above a properly ventilated space. Product is a secondary
barrier under a primary roofing product such as asphalt shingles, synthetic shingles, metal, tiles, and cedar
shakes.
Preparation: Before installing the underlayment ensure that the roof is dry and clear of any debris or any
sharp protrusions.
Installation: FT Synthetics underlayment is laid out horizontally with printed side up using 4” horizontal laps
and 6” vertical laps. For prolonged exposure where driving rain or strong winds are expected it is
recommended to double the overlaps. For low slope applications between 2:12 to 4:12, it is recommended to
overlap 50% plus 1”.
Fastening: FT Synthetics underlayment should be installed with plastic or metal (ring shank or smooth
shank) cap-nails or cap-staples. Un-capped staples or standard roofing nails may be used if the primary roofing
material is installed within 48 hours (unless rain or high winds are expected). Use of un-capped fasteners may
result in a possibility of blow off or leakage around the fasteners.
Exposure: For short term coverage (48 hours) underlayment can be fastened using every other anchoring
position as printed on the product. For extended exposure fasten the product using every anchoring position
as printed on the product. All anchoring must be performed flush to the roof, 90 degrees to the roof deck that
will hold the material tightly with the plywood. Product has 90 Days UV protection, but it should not be
considered a final roofing system. A proper final roofing system should be installed over the product to get the
proper protection.
Safety Notification:
FT Synthetics products are designed with the GRIPSPOT™ technology for better skid protection for the roofer
but product may become slippery due to high moisture, frost, rain, water, dust, debris or other conditions. Use
precautions when working on the roof. Follow all local and federal safety codes when installing any roofing
system including FT Synthetics products. Failure to adhere to those procedures may result in serious injury or
even death.
Synthetic Roofing Underlayment
Unit 1-13120 - 76th Avenue
Surrey BC V3W 2V6
FT SYNTHETICS
Toll Free Ph: 1-844-353-9839
Phone: [phone]
Fax: [phone]
www.ftsyn.com
Canada
SILVER