Plaster leca before winter?

[sollentuna]

Thanks for the tips! We'll see if it's polished this year or next. Right now it feels like it will be next...

 

[Magnus_Nordmark]

Now I'm a little worried! :-/ I've talked to people both at Pordrän and Maxit and no one, absolutely no one has mentioned that you should or ought to mix in any form of moisture barrier in the application. According to Pordrän, you don't need to plaster a Lecawall, just an application is enough. Who should you trust? Now I'm incredibly confused... And worried...

What the different manufacturers recommend with their systems is their responsibility. In our work, we have always mixed a moisture barrier in the plaster that is to be below ground. The same in the application. Most often it was Platonmatte that was put on the outside.

If your manufacturer has said so, let's hope it's right. Maybe just two ways of doing the same thing?

 

[Magnus_Nordmark]

Thanks for the answer! Yes, perhaps it is. In the past, they used to apply asphalt on the wall below ground as a moisture barrier if I remember correctly.

Yes, exactly. Recently, it has been determined that the tar is TOO dense and therefore should not be used. When the tar is so dense, it means that the moisture in the wall doesn't get air, the wall doesn't breathe, and the moisture stays in the wall. However, if it is ventilated on the outside, the moisture in the wall can migrate out.

Platon recommends removing all the tar from a foundation if you are going to drain again, otherwise, the Platon mat has no effect!

Just a little trivia...

 

[chagenfeldt]

Hello,

I am facing the same issue as the original poster! I am currently building a garage with LECA blocks. I have a bit left before it's time to plaster it. Since I am considering trying to plaster it myself and don't know how long it will take, I am thinking about waiting until spring to do the plastering. Earlier in this thread, it was suggested to cover the masonry with a tarp over the winter.

That doesn't sound very appealing to me, so I'm wondering if I can coat it with primer stucco this year and do the rendering in the spring. Or could frost damage or other problems occur then?

Grateful for opinions...

Regards, Calle