What Is Exterior Gypsum Sheathing?


Description. Exterior Gypsum Sheathing is a water-resistant product designed for attachment to exterior side-wall framing as an underlayment for various exterior siding materials such as wood, metal or vinyl siding, masonry veneer, stucco, shingles, etc.


Exterior Gypsum Sheathing is a specialized performance panel consisting of a noncombustible, moisture-resistant core wrapped in fiberglass facers on both the front and back surfaces and long edges.

Glasroc X Sheathing Board case study | British Gypsum

Frequently Asked Questions

Can exterior gypsum sheathing be painted?

The surface or face of Exterior Gypsum Sheathing is not designed to be finished similar to traditional wallboard nor is it a sub- strate for the direct application of stucco, paint or textures.

What are the two most common types of sheathing?

Types of Sheathing There are two main types of wall sheathing: structural and non-structural.

What is gypsum sheathing Typex?

CertainTeed Type X fire resistant drywall is an interior gypsum board consisting of a solid set, fire resistive, Type X gypsum core enclosed in ivory-colored face paper and a strong liner back paper. ... CertainTeed Type X fire resistant drywall is available in a variety of lengths and widths.

What kind of gypsum is used in wood paneling?

The panel is manufactured with a wax-treated, water-resistant core faced with water-repellent paper on both face and back surfaces and long edges. Exterior Gypsum Sheathing is available in 1/2" & 5/8" thick, 4' wide square edge product. 5/8" Exterior Gypsum Sheathing has a Type X core, for use in fire rated assemblies.

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