Anyone know what this coating is? It's on a chalet bungalow, circa 1970, and the walls are rendered breeze block. The render's all solid, but areas where the paint is bubbling up have this failing coating under the paint. It's about 4mm thick.
What Is This Stuff?
- Thread starter keyplayer
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OP,
You need a professional renderer on site to give an opinion on your total installation.
I suspect that none of the coatings have taken properly because the background was not correctly prepared.
And if the final coating is a plastic paint then it has the possibility of causing internal and external difficulties.
Dont fool around with Tetrion or similar.
You need a professional renderer on site to give an opinion on your total installation.
I suspect that none of the coatings have taken properly because the background was not correctly prepared.
And if the final coating is a plastic paint then it has the possibility of causing internal and external difficulties.
Dont fool around with Tetrion or similar.
Fair enough but what about loose or peeling material near the eaves, and what if you discover that there are possibly 20 to 30 patches required around the house?
Ah yes, I see what you mean! A good downpour overnight has revealed quite a few bubbles, there's clearly a route behind a lot of this Tyrolean. So much for a quick fungicide and paint job! It's only on one wall though, which happens to be the most exposed. I can see I'm going to have to get it off and redo it. I might do the lot myself, I've never used a Tyrolean spreader before, should be good for the arm muscles.
Actually, I suspect that I've got an alpine finish cement based thing rather than Tyrolean, such as this one on Weber's site. (Page 19 Decorative Finishes)
Its not Tyrolean but thats irrelevant. You will have to remove all coatings back to the block.
I told you above that the prep was lacking - the same prepping is presumably
on all 4 walls?
Call a professional, pay him or her for their time and get a considered opinion of the whole chalet.
The plastic paint thats been used is presumably over the whole 4 walls - it will cause interior difficulties.
I told you above that the prep was lacking - the same prepping is presumably
on all 4 walls?
Call a professional, pay him or her for their time and get a considered opinion of the whole chalet.
The plastic paint thats been used is presumably over the whole 4 walls - it will cause interior difficulties.
Do you understand what i mean by the term plastic paint? eg. oil paints are plastic paints.
I'm pretty sure the paint is just standard masonry paint, perhaps two or three layers thick. It's worth noting that the grooved texture is not a characteristic of the paint, but of the 4mmish decorative coating on top of the render. I reckon it's Alpine Finish as I've said, which is laid on about 4mm thick, is cement based and contains an aggregate. It was apparently popular in the 70s, and still is in parts of mainland Europe. As I understand it, after trowelling it on and when it firms up a bit, a wooden float is rubbed across it either vertically or horizontally (the latter in this case). This drags the aggregate across the coating which then scores the texture into it. After which it gets painted.
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