USG ME Building Materials; Ceiling, gypsum boards metal framing


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Securock® Brand Regular Glass Mat Sheathing - UBSGM127R2400

USG Boral Securock™ Brand Glass-Mat Sheathing is a non-combustible, moisture- and mold-resistant panel designed for use under exterior claddings where conventional gypsum sheathing products have traditionally been used, such as brick veneer, properly detailed Exterior Insulation Finish Systems (EIFS), Direct-applied Exterior Finishing System (DEFS), metal panel finishing, clapboard siding, shingle siding, shake siding and conventional stucco.
  • Quality, High-performance Sheathing for Warranted Protection from the Elements
  • Treated gypsum core, combined with fibreglass face and back, offers exceptional water resistance
  • Scores and snaps easily for quick installation
  • For use in most exterior systems when properly detailed by exterior finish manufacturer
  • Meets or exceeds the requirements of ASTM C1177
Physical Properties:
  • Physical Properties: Dimension: 1/2” (12.7mm) or 5/8” (15.9mm) thick, 48” (1219mm) wide, (2300mm), 8’ (2438mm), 9’ (2743mm) and 10’ (3048mm) long. Up to 12’ (3658mm) lengths available in 5/8” (15.9mm) thickness in some markets. Other sizes available on special order. Consult your USG Boral sales office or representative for more information
  • Weight: Approximately 2.0 lbs./sq. ft (9.8 kg/m2) for 1/2” (12.7mm thickness), 2.7 lbs./sq. ft. (13.2 kg/m2) for 5/8” (15.9mm) thickness
  • Edge Configuration: Square edges
  • Compliance with Standards: Meets or exceeds the physical property requirements of ASTM C1177. 5/8” (15.9mm) USG Boral Securock™ Glass- Mat Sheathing is UL Classified as to fire resistance, surface burning characteristics and core combustibility. ICCES Evaluation Report ESR 3044
  • Fire Performance: USG Boral Securock™ Glass-Mat Sheathing has a noncombustible core when tested in accordance with ASTM E136. Surfaceburning characteristics
  • Flame spread: 0, and smoke developed: 0, when tested in accordance with ASTM E84. Fire resistance — 5/8” (15.9mm) panels meet the requirements of Type X as defined in ASTM C1396 and ASTM C1177 when tested in accordance with ASTM E119. UL Classified as to fire resistance. See Underwriters Laboratories Fire Resistance Directory for specific designs
  • Tensile Bond: Exceeds 15 psi requirements for both cementitious and acrylic adhesives per ASTM C297
  • Moisture and Mold Resistance: USG Boral Securock™ Glass-Mat Sheathing resists moisture and mold, and complies with ASTM C1177 for water resistance. In independent lab tests conducted on USG Boral Securock™ Glass-Mat Sheathing at the time of manufacture per ASTM D3273, Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber, the panel score was 10. This ASTM lab test may not accurately represent the mold performance of building materials in actual use. Given unsuitable project conditions during storage, installation or after completion, any building material can be affected by mold. To manage the growth of mold, the best and most cost-effective strategy is to protect building products from water exposure during storage and installation, as well as after completion of the building. This can be accomplished by using good design and construction practices





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