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Manufacturer / Supplier


The No 1 Architecturally Specified Fibreglass Mat Gypsum Sheathing board

DensGlass Sheathing is a high performance sheathing board that consists of a fibreglass mat with a gypsum core, designed to provide a high degree of protection from the elements in external cladding constructions.

Widely recognised by the GOLD colour, DensGlass fiberglass mat gypsum sheathing board, has an exemplary track record that spans more than 30 years in the US market place.

Thanks to its ability to protect the building envelope against incidental moisture damage during and after construction, DensGlass  Sheathing is a preferred substrate under a wide variety of facades, such as:



Rainscreen Cladding



A1 non-combustible

No1 Specified Gypsum sheathing board in the US

12 months exposure


Scribe & snap

CE marked

No breather membrane required

Over 30 years in the market

Manufacturing standard

BS EN 15283-1:2008 + A1:2009

Standard board sizes

1200 x 2400 x 12.7mm (Longer lengths available to order, subject to minimum quantity)



If you would like a sample please click on the ‘add sample to basket’ button at the bottom right of this page and select your samples. Once selected you can add other products also, but please make sure you click on the sample basket at the top of the website to complete your request.



This is a scribe and snap board.  It may be cut using the score and snap method, no power tools are required.  It can be  drilled and nailed using conventional hand tools, offering many of the properties of timber.  Screws to be installed flush to the board surface.


Key applications

Sheathing board to

Rainscreen cladding

Masonry facades

Fibre Cement sidings

Timber Cladding

External Wall Insulation Systems

Suitable for the following construction types

Lightweight Steel Frame

Timber Frame

Modular / Offsite

Concrete Frame

  • Type:Exterior
  • Region: Europe
  • Country: United Kingdom
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