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PHYSICAL PROPERTIES

PROPERTY

RESULT

Color

White

Thickness

10.2 mil (0.26 mm)

Membrane Weight
(without release film)

0.95 oz/yd² (289 g/m²)

60" Roll Weight
(with release film)

48 lbs (22 kg)

30" Roll Weight
(with release film)

25 lbs (11 kg)

Roll Dimensions

60" x 100' (1.5 m x 30.5 m)
30" x 100' (.76 m x 30.5 m)

Roll Coverage

60" 500 ft² (46.5 m²) gross
30" 250 ft² (23.2 m²) gross

Primer

No Primer Required

VOCs

None

Field Exposure Before Permanent Cladding

6 months

Minimum Application Temperature

20°F (-6°C)

Service Temperature

minus 40°F (-40°C) - 200°F (93.3°C)

AAMA 711-13

Compliant

Warranty

20 years

 

TESTING DATA

PROPERTY

STANDARD

RESULT

Strength

Elongation

ASTM D412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension

MD - 409%
XMD - 276%

Tensile Strength

ASTM D412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension

MD - 16.96 MPa (2460 psi) XMD - 11.87 MPa (1721 psi)

Dry Tensile Strength

ASTM D882 Standard Test Method for Tensile Properties of Thin Plastic Sheeting

MD - 3.85 N/mm (22 lbf/in)
XMD - 3.85 N/mm (22 lbf/in)

Elongation at Break

ASTM D882 Standard Test Method for Tensile Properties of Thin Plastic Sheeting

MD - 541%
XMD - 617%

Dry Breaking Force (Grab method) MD ≥40 XMD ≥35

ASTM D5034 Standard Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)

MD – 338 N (76 lbsf)
CD – 356 N (80 lbsf)

Elongation at Break

ASTM D5034 Standard Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)

MD - 120%
XMD - 157%

Minimum Puncture Resistance

ASTM E154 Standard Test Methods for Water Vapor Retarders Used in Contact with Earth Under Concrete Slabs, on Walls, or as Ground Cover

Deflection 5.84 cm (2.3")
Max Load 249 N (56 lbf)

Cold Mandrel Bend Test

AC38 Section 3.3.4

PASS

Weathering Tests

AC38 Section 4.1.2 UV Exposure AC38 Section 4.1.3 Accelerated Aging

PASS

Water Vapor Transmittance

Water Vapor Transmission Desiccant Method Procedure A 23°C (73.4°F) 0-50 %RH

ASTM E96 Standard Test Methods for Water Vapor Transmission of Materials

0.0173 Perm (grain/h•ft²•inchHg) @23°C 100%RH
0.992 ng/Pa•s•m²

Water Vapor Transmission Using Modulated Infrared Sensor

ASTM F1249 Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor

0.0193 Perm (grain/h•ft2•inchHg) 1.10 ng/Pa•s•m2

Air Resistance Testing

Air Permeance

ASTM E2178 @75 Pa Standard Test Method for Air Permeance of Building Materials

0.00912 L/s•m² @ 75 Pa (0.0018 cfm/ft² @ 1.57 psf)

Air Permeance

CAN/ULC-S741-08 (2020) Standard for Air Barrier Materials

PASS

Air Permeance

CAN/ULC-S742-11 Standard for Air Barrier Assemblies

Class A1

 

Adhesion Testing

Adhesion after Water Immersion

AAMA 711

PASS

Water Resistance Testing

Nail Sealability

ASTM D1970 Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection Section 7.9 referring to ASTM D7349 protocol 4 with modifications

PASS

Water Resistance (Control after Weathering)

AATCC 127 Hydrostatic pressure test (550 mm water column for 5 hours), American Association of Textile Chemists and Colorists

PASS

Fire Testing

Flame Spread Smoke Developed

ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials

Flame Spread 5 (Class A)
Smoke Developed 15

UL

UL790 Test Method of Fire Tests for Roof Coverings, CAN/ULC-S107

PASS

 

ROOF TESTING DATA

PROPERTY

STANDARD

RESULT

Uplift Strength

FM LPDS 1-52 Field Verification of Roof Wind Uplift Resistance

Steel Deck 11.12 kN/m² (232.5 psf)

90-Degree Peel Strength ASTM D3330 Standard Test Method for Peel Adhesion of Pressure-Sensitive Tape. Method F Steel Deck
879 N/m (5.02 lb/in)
Gypsum Board
751 N/m (4.29 lb/in)
Coated Fiberglass Faced Board
380 N/m (2.27 lb/in)
Wear Resistance Wheelbarrow Testing PASS

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Overview

  • BlockShield SA Plus is a self-adhered, non-asphaltic air and vapor barrier roofing underlayment designed for applications either direct to deck or over a thermal barrier board.
  • BlockShield SA Plus is made from a proprietary high strength polypropylene sheet with a very aggressive adhesive layer that effectively bonds to virtually all deck types.
  • BlockShield SA Plus can be installed on steep slope roofs (>2”:12”) and on low slope roofs (1/4":12" <2":12") in both commercial and residential construction.
  • Top surface is slip resistant, UV stable, and resistant to punctures, tears, and foot traffic.

LowSlope Sidebyside Install WebImages

Product Applications

  • Apply directly to galvanized or painted steel Type B Deck
  • Apply to thermal board fastened to galvanized steel deck
  • OSB
  • Plywood
  • Gypsum

Safety

  • CAUTION: Release liners are slippery. To prevent injury, liner should be removed from under foot as soon as membrane is installed and disposed of properly.
  • Persons who access any roofs, involved with roof construction, repair or maintenance shall use appropriate personal protective equipment including, but not limited to, hard hats, eye protection, and leather gloves and must be trained on safe practices relevant to their work.
  • Where the use of ladders, scaffolds, platforms, or temporary floors are utilized, safety lines and safety harnesses shall be used. Please access the OSHA Web site at www.osha. gov, contact your local OSHA office, or visit the local federal bookstore to obtain the most current information on OSHA 29 CFR 1926.

Delivery, Packaging And Storage

  • Store roll materials vertically on end in original packaging at temperatures between 40°F and 120°F (4ºC - 49ºC).
  • Protect materials from direct sunlight and inclement weather until ready for use.

Substrate Information

Steel surfaces must be clear of any oil residue and moisture. Wood decks must be dry to the touch and clear of dirt and dust. BlockShield SA Plus can be installed in 20°F (-6°C) and rising temperatures. BlockShield SA Plus surface is white, reducing the overall temperature gain during installation.

Installation Best Practices

BlockShield Roof Flat Installation step 1 041323 BestPractice web images 02

STEP 1
Unroll BlockShield SA Plus onto the clean, dry steel deck.

Once BlockShield SA Plus is in place, while holding the sheet tight, remove the silicone release film by pulling diagonally.

STEP 2
When installing subsequent rolls of BlockShield SA Plus ensure 3” (7.5 cm) side laps are maintained.

After multiple rolls are installed, roll the membrane  with a weighted roller, min. 70 lbs.

 

CAUTION: Release liners are slippery. To prevent injury, liner should be removed from under foot as soon as membrane is installed and disposed of properly.

BestPractice web images 03

STEP 3
At the end of each roll, install a metal sheet plate (24 GA x 6"W) to support the end lap between flutes. Ensure 6" (15.2 cm) end laps are maintained on metal sheet plate for each course during installation.

BlockShield Roof Flat Installation 4 022723

STEP 4
Cover as soon as possible to limit exposure to UV and construction traffic. When left exposed to precipitation, positive slope and adequate drainage is required. The effects of weathering may vary based upon local  climate and project conditions. May be used as temporary protection at the discretion of the general contractor or building professional. Maximum exposure is 6 months prior to coverage.

CAUTION: Release liners are slippery. To prevent injury, liner should be removed from under foot as soon as membrane is installed and disposed of properly.

 

CAUTION: Release liners are slippery. To prevent injury, liner should be removed from under foot as soon as membrane is installed and disposed of properly

 

 

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