synthetic roofing underlayment

grip_silver-gripspot- close-up
3-months UV-logo-colour


FT SILVER is a contractor grade steep slope roofing underlayment, it is a cost effective, and reliable #15 felt replacement product. It is easy to install, and has 5X more coverage per roll as compared to #15 felt.  FT SILVER offers a wrinkle- free surface that lays flat, and stays put with its underside non-slip coating. It is designed for use under; primed cedar, asphalt,synthetic shingles, and residential metal roofing.

  • GRIPSPOT™ slip resistant walking surface – safer, reduces fatigue
  • 90 day UV resistant
  • 30 year limited warranty
  • 2.5X more coverage per roll as compared to traditional #15 felt
  • 100% Recyclable water resistant polyolefin construction
  • Wrinkle free and low temperature flexibility for ease of installation
  • Good water holdout resistance – 12 Mil thickness
  • Available printed with your custom logo

FT Silver Meets or exceeds the following code standards:
ASTM D226-97, ASTM D4869, CAN/CSA A123.3, FBC #FL20853, CAN/CSA A220.1, CLASS A (ASTM E108), CCRR 1028, AC 188, TDI, RCABC RoofStar, Miami-Dade NOA 16-0510.30, California Building Code Compliant.

WIDTH48″ (1.22 M)
LENGTH250′ (76.2 M)
WARRANTY30 Year Limited

Test and StandardFT SYNTHETICS SILVER15 Lb. Felt
Material Composition
Breaking Strength ASTM D 5034 MD
107 lb (46 kg)NA
Breaking Strength ASTM D 5034 CD
96 lb (44 kg)
Tear Strength ASTM D4533 MD
25 lb (11 kg)NA
Tear Strength ASTM D4533 CD
23 lb (10 kg)
Water shower Exposure ASTM D 4869
Permeability ASTM E96
<0.06 Perms6 Perms
Nominal Thickness ASTM D1777 
12 mils
21 mils
Temperature Range 
-40°F to 240°F
Mullen Burst
113 psiNA
The Data shown above is based on the test averages and independent test reports. There can be a +/-10% variation in the individual test results. This report should not be considered as a warranty for the manufacturer. The manufacturer is not responsible for the misrepresentation or misinterpretation of the data by the reader. Please find out more about the product by calling 1-844-353-9839 or visit www.ftsyn.com

Use: FT SILVER is a synthetic roofing underlayment designed for use in steep slope roofing as a secondary layer of protection. It is approved for
installation over plywood or OSB with proper fasteners on roof slopes 2:12 and greater. FT SILVER is an air, vapor and water barrier with <1 Perm
and therefore should be installed above a properly ventilated space. It is designed for use under primary roofing products such as; wood, asphalt or
synthetic shingles, and residential metal.

Preparation: Deck surface should have no voids or damaged areas, and be clean, dry and clear of any debris or any sharp protrusions.

Installation: Underlayment is to be laid out horizontally with the 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: It is recommended to install underlayment with corrosive resistant 1” plastic or metal cap-nails or cap-staples. All anchoring
fasteners should be flush (90 degrees to the roof deck) and tight with the underlayment surface and structural roof deck. Un-capped
staples or standard roofing nails may be used if the primary roofing material is installed within 48 hours (Unless heavy rain or high winds
are expected). Note: 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 in the field of the
product. For extended exposure fasten using every anchoring position as printed on the product. Product should be covered by primary
roofing material within 90 days of application.

CAUTION: Read Good Safety Practises Below:
Good safety practises should be followed on steep slope roofs, such as use of tie-offs, toe boards, ladders, and/or safety ropes and personal body
harnesses. Slip resistance may vary with surface conditions from debris, weather, footwear and roof pitch. Always follow Safety Instructions, Building
Codes, and Safe Work Practices issued by local Government bodies (e.g. OSHA/WCB/CNESST). Failure to use proper safety gear may result in serious


SILVER Dual logo program

Our SILVER Dual Logo Program is an easy marketing tool  and receive majority branding alongside our own logo and contact information. You’ll be recognized in your community as a leader in sustainable roofing practices and gain valuable exposure for your business.

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We are here to help and answer any questions you may have. We look forward to hearing from you. Please allow 24 hours for us to reply!

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