Exterior wall cement collar


Postby soyabean » Wed Aug 29, 2012 2:12 pm

Hi all

What is the cement collar that surrounds the bottom 2 to 3 feet of my exterior walls called? Is there any advice and or products for repairing it as it's crumbling?

Soyabean
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Postby welsh brickie » Wed Aug 29, 2012 6:14 pm

Unsure what you mean by collar.If it crumbling you need to remove the loose material and stabilize it by painting it with a unibond pva solution, and repair it with sand/cement/lime 4:1:1 mixture and add a waterproofing agent,like opti-mix render addative.
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Postby soyabean » Thu Aug 30, 2012 8:09 am

Thanks Welsh brickie. What quantity of the waterproof agent would you recommend? Also, Wickes do a ready made mortar mix, don't want to cut corners but is it worth using it?

Soyabean
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Postby welsh brickie » Thu Aug 30, 2012 7:26 pm

the mortar mix from wicks isnt that good,try your local builders merchants.
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