Strong and Durable

Cembrit Windstopper Extreme is a breathable sheathing board with a 60/60 fire rating. The board consists of grey cement and limestone filler, reinforced with a specially selected fibre material that can absorb and release moisture without affecting the durability, strength or performance of the board.

Cembrit Windstopper Extreme has a very low vapour transmission resistance, enabling moisture from inside the building to pass through. In consequence, insulation can be placed directly against the inner side of the board. The board is powerfully resistant towards both rot and fungal growth and can withstand considerable fluctuations in weather and climate conditions. Adding to this, the Cembrit Windstopper Extreme is non-combustible.

When installed according to Cembrit installation instructions, Cembrit Windstopper Extreme will function as a temporary facade for up to 12 months.

Choose colour:

Cembrit Windstopper Extreme


Fire class
A2 - s1, d0

4.5x1200x2400 mm
9x1200x2400 mm

Safety Datasheet Cembrit Windstopper Extreme (EU)


Building board product and application selection guide


Cembrit Windstopper


Cembrit Windstopper Extreme Datasheet


Racking Strength of Cembrit Windstopper and Multi Force


On-site handling (Windstopper)


Cembrit Windstopper Extreme and Basic Installation Manual


015 DoP Cembrit Windstopper Extreme


CE 2013 015DoP Cembrit Winstopper Extreme


Safety Datasheet Cembrit COSHH - Multi Force, Windstopper and HD


Safety Datashett Cembrit Windstopper Extreme (EU)


Cembrit Windstopper Samples

Thank you for showing an interest in our fibre-cement based products.

We have local units in most countries.

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Please fill in the form below to order samples from Cembrit and be contacted by one of our dedicated experts.

Please note that we cannot guarantee sample availability. We will handle your order immediately upon receipt hereof, however, if you are located in a country in which Cembrit is not represented, you may experience somewhat longer delivery times.