Sarnafil® G 410-72 Feltback
Sarnafil® G 410-72 Feltback Roof Membrane is a PVC thermoplastic membrane produced with an integral fiberglass mat reinforcement for excellent dimensional stability, with heat‐weldable seams, and a unique lacquer coating applied to the top of the membrane to reduce dirt pick up.
- Excellent dimensional stability
- Factory applied lacquer coated to reduce dirt pick up
- Hot‐air welded seams for long‐term performance
- Proven membrane performance
- Superior fire resistance
Usage
Used in adhered applications with various adhesives over various substrates. AREAS OF APPLICATION- New Roofs
- Reroofs
- Recovers
Advantages
- Excellent dimensional stability
- Factory applied lacquer coated to reduce dirt pick up
- Hot‐air welded seams for long‐term performance
- Proven membrane performance
- Superior fire resistance
Packaging
72 mil (1.8 mm) Membrane
6.56 ft x 49.2 ft (2 m x 15 m) roll, 177 lbs (80 kg) per roll,
10 rolls per pallet
Colour
- Top: Copper Brown, Evergreen*, or Lead Gray
- Bottom: Gray
*Evergreen is not a stocked color. For lead time and minimum roll order requirements, contact Sika Roofing Customer Service.
Product Details
APPROVALS / CERTIFICATES
- FM Global
- Underwriters Laboratories
- Underwriters Laboratories of Canada
- ICC Code Compliance – ESR 1157
- Miami‐Dade County
- Florida Building Code
- NSF/ANSI 347: Platinum Certified
- CGSB-37.54-95. Type 2/Class B
- CSA-A123.21
Composition / Manufacturing
High‐quality, PVC membrane containing ultraviolet light stabilizers, flame retardant, and fiberglass reinforcement with a unique lacquer coating on the top surface.
Reinforcing Material
Fiberglass
Shelf Life
N/A
Storage Conditions
Store rolls on pallets and fully protected from the weather with clean canvas tarpaulins. Unvented polyethylene tarpaulins are unacceptable due to the accumulation of moisture beneath the tarpaulin in certain weather conditions that may affect membrane weldability.
Overall Thickness
| 72 mil (1.8 mm), minimum thickness 45 mil | (ASTM D-751) (ASTM Type II D-4434 Spec. Requirement) |
Thickness Above Scrim
| 35 mil 16 mil | (ASTM D-7635) (ASTM Type II D-4434 Spec. Requirement) |
Felt Weight
9 oz/yd2
Resistance to Static Puncture
| Pass 33 lbf (15 kg) | (ASTM D-5602) (ASTM Type II D-4434 Spec. Requirement) |
Resistance to Dynamic Puncture
| Pass 7.3 ft-lbf (10 J) | (ASTM D-5635) (ASTM Type II D-4434 Spec. Requirement) |
Tensile Strength
| 100 lbf/in (445 N) 55 lbf/in (245 N) | (ASTM D-751) (ASTM Type II D-4434 Spec. Requirement) |
Tear Strength
| 20.5 lbf (91 N) 10 lbf (45 N) | (ASTM D-1004) (ASTM Type II D-4434 Spec. Requirement) |
Seam Strength
| Pass 75% of original2 | (ASTM D-751) (ASTM Type II D-4434 Spec. Requirement) |
2 Failure occurs through membrane rupture not seam failure.
Linear Dimensional Change
| ‐0.01% 0.1% | (ASTM D-1204) (ASTM Type II D-4434 Spec. Requirement) |
Low Temperature Flexibility
| Pass Pass ‐40°F (‐40°C) | (ASTM D-2136) (ASTM Type II D-4434 Spec. Requirement) |
Weight Change after Immersion in Water
| 1.8% ± 3.0% | (ASTM D-570) (ASTM Type II D-4434 Spec. Requirement) |
Resistance to UV Exposure
| Pass 5,000 hours | (ASTM G-154) (ASTM Type II D-4434 Spec. Requirement) |
| Cracking (7x magnification) | None |
| Crazing (7x magnification) | None |
Retention of Properties after Heat Ageing
| Breaking Strength, % of original: Pass Elongation, % of original: Pass Breaking Strength, % of original: 90 Elongation, % of original: 90 | (ASTM D-751) (ASTM D-751) (ASTM Type II D-4434 Spec. Requirement) |
Application
APPLICATION
Sarnafil G 410 is installed after proper preparation of the approved substrate. The membrane is unrolled into Sarnacol® adhesive in accordance with Sika’s technical requirements and then pressed into place with a minimum 75 lb (34 kg) steel roller. Sarnafil G 410 seams are heat‐welded together by trained operators using hot‐air welding equipment. Different Sarnacol adhesives require different application methods. Please consult Sika’s Specifications or Applicator Handbook for detailed installation procedures.
