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USG ROOFING SOLUTIONS PORTFOLIO usg.com/securock

A LEADER IN THE BUILDING MATERIALS INDUSTRY For more than 100 years, USG has been a leader in producing innovative products and systems to build the environments in which we live, work and play. As the inventor of wallboard and mineral wool ceiling tile, USG helped create North America’s building materials industry. Our flagship brands are recognized around the world and include USG Securock® Brand high-performance roof boards, USG Sheetrock® Brand gypsum panels, USG Durock® Brand cement boards and USG Donn® Brand suspension systems. USG is North America’s leading producer of gypsum...

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A HIGHPERFORMANCE PORTFOLIO OF ROOFING SOLUTIONS THAT STAND ABOVE THE REST No matter what the application, the high-performance portfolio of USG roofing solutions gives you a better choice in the roof board category. Our products meet stringent performance requirements, offer exceptional features and deliver superior strength. All so you can rest easy that your vision will always be covered by the best. USG SECUROCK® BRAND GYPSUM-FIBER ROOF BOARD • Cover board for fully adhered systems • Exceptional bond and low surface absorption • Superior wind uplift • 97% recycled content USG SECUROCK®...

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SUBMITTAL SHEET GYPSUM-FIBER ROOF BOARD High-performance gypsum-ﬁber roof board for use in low-slope commercial rooﬁng systems Exceptional bond and low absorption in adhered systems Moisture- and mold-resistant Excellent wind-uplift performance Manufactured from 97% recycled material USG Securock® Brand Gypsum-Fiber Roof Board is a high-performance roof board for use in lowslope roofing systems. Its unique fiber-reinforced, uniform composition gives the panel strength and water resistance through to the core. USG Securock Gypsum-Fiber Roof Board provides exceptional bond and low absorption...

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LIMITATIONS CONT. FIRE PERFORMANCE SYSTEM PERFORMANCE STANDARDS COMPLIANCE • USG allows the bonding of cold mastic-modified bitumen and torching directly to the surface. Consult with the system manufacturer for recommendations on this application. • USG recommends maximum asphalt application temperature for Type III asphalt of 455°F when using USG Securock Gypsum-Fiber Roof Board. Application temperatures above these recommended temperatures may adversely affect roof system performance. • Refer to roof system manufacturer's written instructions, local code requirements and Factory Mutual...

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PHYSICAL PROPERTIES Width, standard Length, standard Pieces per unit for 4' x 8' sheets Weight, nominal lbs./unit, 4' x 8' sheet Weight, nominal lbs./sq. ft. Flexural strength, parallel, lbs. min., per ASTM C473 Compressive strength, psi nominal Flute spanability per ASTM E661 Permeance, perms, per ASTM E96 Coefficient of thermal expansion, inches/inch • °F, per ASTM E831 Linear variation with change in moisture, inches/inch • % RH, per ASTM D1037 Water absorption, % max, per ASTM C473 Surface water absorption, nominal grams, per ASTM C473 Mold resistance per ASTM D3273* Bending radius...

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SUBMITTAL SHEET USG SECUROCK® BRAND GLASS-MAT ROOF BOARD High-performance glass-mat roof board for use in low-slope commercial rooﬁng systems Ideal for use as cover board in single-ply mechanically attached systems Moisture- and mold-resistant core and facer Provides protection to roof system from hail and foot traffic Fire-resistant for use as fire barrier and thermal barrier Unmatched mat-to-core tensile bond strength makes facer less likely to delaminate when cutting High-quality tight mat makes for easier handling and cutting USG Securock® Brand Glass-Mat Roof Board is a...

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INSTALLATION CONT. SYSTEM PERFORMANCE STANDARDS COMPLIANCE • Butt board edges and ends loosely (minimum 1/16" gap on all edges) in typical installations. This gap may need to be larger depending on factors like the roof deck's size, membrane color, ultimate deck surface temperature and time of year the roof assembly is installed. Installations during temperatures below 50°F may require larger spacing. Please refer to USG's published physical properties below to calculate the actual gap needed for your specific project for all thicknesses. • Roof boards should never be installed frozen. •...

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SUBMITTAL SHEET USG SECUROCK® BRAND CEMENT ROOF BOARD • Ideal for use as a cover board in system applications such as liquid-applied membranes or as a parapet, fire or thermal barrier roof board • Lightest cement board in the industry • Environmentally sustainable product—lower weight reduces embodied energy and embodied emissions • Water-durable, mold-resistant substrate • Will not rot, warp, delaminate or disintegrate • Easy to cut and fasten • Noncombustible DESCRIPTION USG Securock® Brand Cement Roof Board is a high-performance roof board for use in low-slope roofing systems. As the...

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LIMITATIONS CONT. • Plastic or poly packaging applied at the plant to protect board during rail or other transit should be removed upon receipt to prevent condensation or trapping of moisture, which may cause application problems. • USG Securock Cement Roof Board should be stored flat and off the ground with protection from the weather. Preferred storage location is an enclosed shelter providing protection from the elements. However, if stored outdoors, a breathable waterproof covering should be used. • When applying solvent-based adhesives or primers, allow sufficient time for the solvent...

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PHYSICAL PROPERTIES Thickness, nominal Width, standard Length, standard Pieces per unit for 4' x 8' sheets Weight, nominal lbs./unit, 4' x 8' sheet Weight, nominal lbs./sq. ft. Flexural strength, parallel, psi, per ASTM C947 Compressive strength, psi nominal Flute spanability per ASTM E661 Permeance, perms, per ASTM E96 Coefficient of thermal expansion, inches/inch/°F, per ASTM E831 Linear variation with change in moisture, %, per ASTM D1037 Water absorption, % max, per ASTM C473 Mold resistance, per ASTM D3273* Minimum bending radius *ASTM D3273 Mold Resistance Testing: In independent lab...

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