Could anybody advise of their experience of a product made by evo stik (I think) which is used applied by brush to "waterproof" brickwork and if this product is adviseable to use? The product is applied directly to the brickwork via brush. Thanks for your replies.
Bricks and is it worth waterproofing them??
- Thread starter Batesy
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Waterproof to keep water out or in?
Most external treatments (such as Thompsons) are water repellent (to a point) and not waterproof, but do work well. They tend to require recoating after a few years, depending on exposure.
I have Thompsons on the external of my single skin porch, its skim plastered on the inside and bone dry.
If its for something like a basement or wall backing on to soil, then a bitumen based coating will work - RIW or Superprufe or similar
Most external treatments (such as Thompsons) are water repellent (to a point) and not waterproof, but do work well. They tend to require recoating after a few years, depending on exposure.
I have Thompsons on the external of my single skin porch, its skim plastered on the inside and bone dry.
If its for something like a basement or wall backing on to soil, then a bitumen based coating will work - RIW or Superprufe or similar
Cheers Woody, its actually to give some added protection to the gable end of the house. What we have is a breaching of the cavity as some brickwork connects the two courses of bricks together ie they have been layed end on. Our builder recommended this product by evo-stik but you are right will already moisture laden bricks then be sealed with moisture within them?
You need a product that does allow the wall to breathe, and not totally seal it. "Thompsons" or similar silicone solution does this.
You will have to do the whole wall above the problem to prevent water traveling down the brickwork, not just in through the face. But it is a viable solution
You will have to do the whole wall above the problem to prevent water traveling down the brickwork, not just in through the face. But it is a viable solution
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The standard Thompson's product isn't actually a silicone (it's a stearate) which is why it needs recoating every couple of years (due to the fact that it gets broken down by the UV rays in sunlight). A decent-strength silicone product will last at least 10 years - although it will cost a bit more.
I did the front of my house about 20 years ago, wind blown rain from next doors gutter was landing on the wall and making it green.
This has worked perfectly.
This has worked perfectly.
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