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Securock Sheathing
Last Modified: 2018-02-03

Securock Sheathing


  • The lightest  1/2 in. and 5/8 in. glass-mat sheathing available—up to 15% lighter than other glass-mat sheathings
  • Improved coated fiberglass facer mat to maximize coverage of air/water barrier systems
  • Treated gypsum core, combined with fiberglass face and back, offers exceptional water resistance
  • Score and snap easily for quick installation
  • For use in most exterior systems when properly detailed by exterior finish manufacturer
  • GREENGUARD Gold certified and qualifies as a low VOC emitting material (meets CA 01350)
  • Meet or exceed the requirements of ASTM C1177

4' x 8'1/2"Add To Quote
4' x 8'5/8"Add To Quote

Securock Sheathing

High-performing, lightweight sheathing that’s designed to give your productivity a boost.

Available in 12.7 mm (1/2 in.) and 15.9 mm ( 5/8 in.) thicknesses, CGC Securock® Brand UltraLight Glass-Mat Sheathing is a lightweight, noncombustible, moisture- and mould-resistant panel designed for use under exterior cladding where conventional gypsum sheathing products have traditionally been used. Formulated to achieve all the strength and performance characteristics as standard CGC Securock® Glass-Mat Sheathing at a significantly reduced weight, these panels are warranted for up to 12 months after application.

Available in both 1/2 in. regular core and 5/8 in. Firecode X core thicknesses

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