frost damage

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I have a straw bale house with cob daub and a lime render, which I have carefully lime washed in spring with 3 coats. I have problems every couple of years in winter if the wind drives persistent rain from the North against my lime washed walls over a couple of days and then the temperature drops below freezing on subsequent days. The moisture in the walls then freezes and lifts and crazes the lime wash which then falls off like bad dandruff as the temperature rises above freezing. Can any one suggest how I might avoid this in future?

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Thank you for getting in touch.  Our Beeckosil paint system would be a more long term option.  It will offer the same level of vapour permeability compared to a limewash but as it chemically binds to the substrate it offers a significantly improved durability. Beeckosil also contains the addition of a water repellent and will shed rain, this will also reduce the amount of water which can enter the render and overcome the issues you are currently experiencing with limewash.

Beeck Beeckosil

 

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