Hello!
We are going to insulate a 25 cm thick wall of lecablocks with 100 mm polystyrene, and on the outside, we will attach battens and wood paneling. However, we are not quite sure how to fasten the polystyrene and battens to ensure stability.
Would be terribly grateful for tips and advice!
/maria
We are going to insulate a 25 cm thick wall of lecablocks with 100 mm polystyrene, and on the outside, we will attach battens and wood paneling. However, we are not quite sure how to fasten the polystyrene and battens to ensure stability.
Would be terribly grateful for tips and advice!
/maria
I did a similar installation but with 70mm foam plastic and plaster/concrete hollow blocks that I mounted on.
I used facade plugs/screws of appropriate length that I drilled through the foam plastic and into the concrete wall. Then I pre-drilled the battens and simply screwed the battens in with the screws. In this way, the foam plastic was clamped between the battens and the wall. To ensure the battens didn’t cut into the foam plastic, I used 22x95 rough sawn timber as battens, creating a large support area between the battens and foam plastic. I mounted the facade plugs at c-c 60cm, making it very stable. Another advantage of this method is that it minimizes thermal bridges.
I used facade plugs/screws of appropriate length that I drilled through the foam plastic and into the concrete wall. Then I pre-drilled the battens and simply screwed the battens in with the screws. In this way, the foam plastic was clamped between the battens and the wall. To ensure the battens didn’t cut into the foam plastic, I used 22x95 rough sawn timber as battens, creating a large support area between the battens and foam plastic. I mounted the facade plugs at c-c 60cm, making it very stable. Another advantage of this method is that it minimizes thermal bridges.
Finja's Iso-Let should work for both projects, see here page 13:
http://www.finjabetong.se/App_Resource/Page/file/betong/5017-1.pdf
The cell plastic can also be glued with polyurethane adhesive but it is expensive and large quantities will be needed.
http://www.finjabetong.se/App_Resource/Page/file/betong/5017-1.pdf
The cell plastic can also be glued with polyurethane adhesive but it is expensive and large quantities will be needed.
Thanks for your tip!
I saw that there were 160 mm façade plugs at byggmax. I'm wondering if they would be sufficient to attach 100 mm friogilit plus 22 mm battens. That would be just under 40 mm into the lecablocks. Do you think it would work?
/maria
I saw that there were 160 mm façade plugs at byggmax. I'm wondering if they would be sufficient to attach 100 mm friogilit plus 22 mm battens. That would be just under 40 mm into the lecablocks. Do you think it would work?
/maria
Perhaps, the façade plug only expands at the front. But it probably wouldn't hurt to use 180 or 200mm long ones. Then you should check if façade plugs are also suitable for leca.
I used 160mm long ones for 70mm foam and 22mm battens, worked excellently.
I used 160mm long ones for 70mm foam and 22mm battens, worked excellently.