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Exterior wall cement collar
Posted: Wed Aug 29, 2012 3:12 pm
by soyabean
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
Re: Exterior wall cement collar
Posted: Wed Aug 29, 2012 7:14 pm
by welsh brickie
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.
Re: Exterior wall cement collar
Posted: Thu Aug 30, 2012 9:09 am
by soyabean
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
Re: Exterior wall cement collar
Posted: Thu Aug 30, 2012 8:26 pm
by welsh brickie
the mortar mix from wicks isnt that good,try your local builders merchants.