Thermalite in Gable

[Nitell]

Hello.

I am having a double garage built.

Due to adjacent boundaries it is necessary to have cavity walls on two sides. the other two sides will be solid concrete.

To reduce costs I intend to use Thermalite, double size, blocks in the gables, or 100 mm solid concrete blocks and render them. However, Thermalite is porous, so any advice or alternative suggestions is very much welcomed.

Thank you.

 

[^woody^]

All blocks are porous.

 

[Nitell]

Yes. After I made my post I realised my error.

What I meant is that I think thermalite blocks, if they can be rendered, require different rendering techniques than thermalite. But be lighter in the gable, and cheaper. Please let me know can thermalite be rendered ?.

 

[^woody^]

They can, but are a pain to do and have a significant risk of early render failure and maintenance issues.

You can get 3N concrete blocks as light as thermalite and much better to use.

 

[noseall]

You can get 3N concrete blocks as light as thermalite and much better to use.

You can get 7n Fibolites almost a light as 3n's and have a tighter finish - so less unwanted suction. (not cheap though but worth every penny).

 

[Nitell]

Splendid. Many thanks for your recommendations. I will look at those.