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Sarnafil® S 327-48 Feltback EnergySmart

Sarnafil® S 327-48 Feltback EnergySmart

PVC THERMOPLASTIC MEMBRANE

Sarnafil® S 327-48 Feltback EnergySmart is a PVC thermoplastic roof membrane produced with an integral polyester reinforcement for high strength, highly reflective, designed with heat‐weldable seams and a unique lacquer coating applied to the top of the membrane to reduce dirt pick up.

  • Highly reflective
  • Excellent tear strength resistance
  • Factory-applied lacquer coated to reduce dirt pick up
  • Hot‐air welded seams for long‐term performance
  • Proven membrane performance
  • Superior fire resistance
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Product Data Sheet Show all documents

Usage

Sarnafil® S 327-48 Feltback EnergySmart is used in mechanically-attached applications with various fastening methods, over various substrates.     AREAS OF APPLICATION
  • New roofs
  • Reroofs
  • Recovers
 

Advantages

  • Highly reflective
  • Excellent tear strength resistance
  • Factory-applied lacquer coated to reduce dirt pick up
  • Hot‐air welded seams for long‐term performance
  • Proven membrane performance
  • Superior fire resistance

Packaging

48 mil (1.2 mm) Membrane*

3 m x 30 m (10 ft x 100 ft) roll, 165 kg (363 lb) per roll,

9 rolls per pallet

* Made to order, minimum volume required, extended production lead times. Consult with Sika – Roofing representative for further information.

Colour

  • Top: White, Tan, and Reflective Grey
  • Bottom: Grey

Product Details

Sustainability / Certifications / Approvals

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
  • ENERGY STAR®
  • California Title 24
  • LEED / Green Globes
  • CGSB-37.54-95. Type 4/Class B
Product Information

Composition / Manufacturing

High‐quality, PVC membrane containing ultraviolet light stabilizers, flame retardant and polyester scrim reinforcement with a unique lacquer coating on the top surface.

Recycled content

9 % Pre‐consumer, 1 % Post‐consumer

Reinforcing Material

Polyester

Shelf Life

N/A

Storage Conditions

Store rolls on pallets and fully protected from the weather with clean canvas tarpaulins. Unvented polyethylene tarpaulins are not accepted due to the accumulation of moisture beneath the tarpaulin in certain weather conditions that may affect the ease of membrane weldability.

Overall Thickness

48 mil (minimum thickness)

45 mil

(ASTM D751)

(ASTM Type III D4434 Spec. Requirement)

Thickness Above Scrim

21 mil

16 mil

(ASTM D7635)

(ASTM Type III D4434 Spec. Requirement)

Felt Weight

9 oz/yd2
Technical Information

Resistance to Static Puncture

Pass

15 kg (33 lbf)

(ASTM D5602)

(ASTM Type III D4434 Spec. Requirement)

Resistance to Dynamic Puncture

Pass

20 J (14.7 ft-lbf)

(ASTM D5635)

(ASTM Type III D4434 Spec. Requirement)

Tensile Strength

1312 N (295 lbf)

890 N (200 lbf)

(ASTM D751)

(ASTM Type III D4434 Spec. Requirement)

Linear Dimensional Change

‐0.10 %

0.5 %

(ASTM D1204)

(ASTM Type III D4434 Spec. Requirement)

Tear Strength

209 N (47 lbf)

200 N (45 lbf)

(ASTM D751)

(ASTM Type III D4434 Spec. Requirement)

Seam Strength

Pass

75 % of original2

(ASTM D751)

(ASTM Type III D4434 Spec. Requirement)

2 Failure occurs through membrane rupture not seam failure.

Low Temperature Flexibility

Pass

Pass ‐40 °C (‐40 °F)

(ASTM D2136)

(ASTM Type III D4434 Spec. Requirement)

Retention of Properties after Heat Ageing

Tensile Strength, % of original: Pass

Elongation, % of original: Pass

Tensile Strength, % of original: 90

Elongation, % of original: 90

(ASTM D3045)

(ASTM D751)

(ASTM Type III D4434 Spec. Requirement)

 

Resistance to UV Exposure

10,000 hours

5,000 hours

(ASTM G154)

(ASTM Type III D4434 Spec. Requirement)

Cracking

(7x magnification)

None

Discoloration

(by observation)

Negligible

Crazing

(7x magnification)

None

Weight Change after Immersion in Water

2.2 %

± 3.0 %

(ASTM D570)

(ASTM Type III D4434 Spec. Requirement)

Solar Reflectance

EnergySmart Colors

Initial Solar

Reflectance1

3-Year Solar

Reflectance1

EnergySmart

White2

0.840.76

EnergySmart

Tan2

0.730.65

EnergySmart

Reflective Gray2

0.730.66

1 Solar Reflectance testing according to ASTM C1549.

2 Meets ENERGY STAR®, LEED, Green Globes, and California’s Title 24 criteria for Low and Steep Slope applications.

Thermal Emittance

EnergySmart Colors

Initial Thermal

Emittance1

3-Year Thermal

Emittance1

EnergySmart

White2

0.860.85

EnergySmart

Tan2

0.850.86

EnergySmart

Reflective Gray2

0.890.88

1 Thermal Emittance testing according to ASTM C1371, Slide Method.

2 Meets ENERGY STAR®, LEED, Green Globes, and California’s Title 24 criteria for Low and Steep Slope applications.

Solar Reflectance Index

EnergySmart Colors

Initial Solar

Reflectance Index1

3-Year Solar

Reflectance Index1

EnergySmart

White2

10593

EnergySmart

Tan2

8978

EnergySmart

Reflective Gray2

9080

1 Solar Reflectance Index calculated according to ASTM E1980.
2 Meets ENERGY STAR®, LEED, Green Globes, and California’s Title 24 criteria for Low and Steep Slope applications.

Application

Application steps

APPLICATION

Sarnafil® S 327-48 Feltback EnergySmart is rolled out after proper preparation of the approved substrate and fastened to the roof deck with appropriate mechanically-attached system with Sarnafasteners in accordance with Sika’s technical requirements. Sarnafil® S 327-48 Feltback EnergySmart seams are heat‐welded together by trained operators using hot‐air welding equipment. Different mechanically-attached systems require different application methods. Please consult Sika’s Specifications or Applicator Handbook for detailed installation procedures.

 

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