synthetic roofing underlayment

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FT GOLD is a steep slope roofing underlayment that is high quality, cost-effective, and a reliable #30 felt replacement product. It is easy to carry and has 5X more coverage per roll as compared to felt.  FT GOLD has a wrinkle-free surface that lays flat and stays put due to a high quality non-slip backside coating. Designed for use under; primed cedar, tile, slate, asphalt or synthetic shingles, and commercial or residential metal roofing.

  • GRIPSPOT™ slip-resistant walking surface – safer, reduces fatigue
  • 180 day UV Resistant
  • Limited Lifetime Warranty
  • 5X more coverage per roll as compared to traditional #30 felt
  • 100% Recyclable water-resistant polyolefin construction
  • Greater water hold out resistance – 16 mils thickness
  • Wrinkle-free and low-temperature flexibility for ease of installation

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

WIDTH48″ (1.22 M)
LENGTH250′ (76.2 M)

Test and StandardFT SYNTHETICS GOLD30 Lb. Felt
Material Composition
Breaking Strength ASTM D 5034 MD
120 lb (54 kg)NA
Breaking Strength ASTM D 5034 CD
110 lb (50 kg)NA
Tear Strength ASTM D4533 MD
35 lb (16 kg)NA
Tear Strength ASTM D4533 CD
32 lb (15kg)
Water shower Exposure ASTM D 4869
Permeability ASTM E96
<0.05 Perms5 Perms
Nominal Thickness ASTM D1777 
16 mils
60 mils
Temperature Range 
-40°F to 240°F
Mullen Burst
125 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 GOLD 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 GOLD 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; asphalt or synthetic shingles, metal, tiles, slate, and primed cedar shakes.

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 180 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 injury


GOLD Dual logo program

Our GOLD 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. 

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