Cembrit Windstopper Extreme

Cembrit Windstopper Extreme

  • £2,185.65
    Unit price per 
  • Save £385.70


Guaranteed and tested fire and weather resistant sheathing board.

Cembrit Windstopper Extreme is a breathable sheathing board with a 60/60 fire rating. The boards composition is designed to absorb and release moisture without affecting the durability, strength or performance of the board. Windstopper Extreme is available in 2 thicknesses 9mm and 4.5mm. Lightweight 4.5mm can be scored and snapped making for rapid, dust free installation and is ideal as a temporary cladding. Both thicknesses provide good acoustic insulation. Specially designed sealing tape (with 12 month UV stability) seals joints and edges providing complete weatherproofing of the building. When installed according to Cembrit installation instructions, Cembrit Windstopper Extreme will function as a temporary facade for up to 12 months.


Euroclass A2 to EN13501-1

Can be left exposed for 12 months

Lightweight 4.5mm thick option

High density material 

High impact resistance

Can be pressure washed

Suitable backer for laminates

Can be used in composite panels

BBA Certification

Available Cut to size or Sheet form.


Available Sizes

Length 2700mm/3000mm

Width 900mm/1200mm

Thickness 4.9mm / 9mm


Rainscreen Facade


Roofline Soffits

Off site panels and SIPS  

Fixing Methods

Visible Fix -

Visible Fix - 

Secret Fix - 

Secret Fix - 


Build Now, Pay Later with Klarna. 


Structural calculations required to determine dynamic forces e.g. wind load and dead loads (weight of the cladding) under project circumstances. Fixings, Bracket Numbers & Spacing are all affected. Please speak to us if you are unsure.