Hello everyone,
there is probably already a thread on this topic, but I have to admit that my search didn’t quite work the way I wanted. So, I apologize in advance—please feel free to link any existing posts if available.
About my concern:
I am currently renovating (a full refurbishment) a detached house from the 1950s. The masonry consists of 24 cm (9.4 inches) pumice blocks, plastered and painted on the outside. The roof and windows have been renewed and insulated, meeting the requirements for KfW funding. There is a decentralized ventilation system by Lunos.
I have been reading about different materials and came across Neopur.
The plan was to use WGL032 with a thickness of 160 mm (6.3 inches). Unfortunately, this material contains crude oil. In case of fire, it reportedly ignites and burns very quickly—within a very short time (at least within the 20-minute typical response time of the fire department). Additionally, it melts and drips. The advantages are good insulation value, a reasonable price, relatively easy installation (including the use of countersunk plastic anchor plugs to avoid visible marks later), and the fact that the material does not necessarily have to be protected from moisture during and after installation.
However, the fire risk is troubling me. Of course, one assumes the house will not catch fire for the next 300 years, but in the worst case, this is a significant disadvantage. My biggest concern is that the fire could spread extremely quickly within 5–6 minutes. It already takes about 5–10 minutes to notice a fire—if it is noticed at all.
Rockwool offers an interesting alternative product, Coverrock II (with WGL035) combined with a plaster carrier board. Similar countersunk anchors can be used here. The price, however, is about twice as high. I can’t comment on the installation process yet. I would need to protect the stone wool from moisture and plaster it relatively quickly. The obvious advantage is that this material is not flammable or at least much less flammable and does not drip.
Who among you has already installed these materials and maybe even has some years of experience?
Who can recommend certain materials?
I’m not looking to debate the general pros and cons of external wall insulation. The insulation will be 160 mm (6.3 inches) thick regardless (electrically operated exterior roller shutters with plaster carrier).
As you can see, I’m quite concerned about the choice of material. Sorry for writing so much. I would really appreciate any advice!
there is probably already a thread on this topic, but I have to admit that my search didn’t quite work the way I wanted. So, I apologize in advance—please feel free to link any existing posts if available.
About my concern:
I am currently renovating (a full refurbishment) a detached house from the 1950s. The masonry consists of 24 cm (9.4 inches) pumice blocks, plastered and painted on the outside. The roof and windows have been renewed and insulated, meeting the requirements for KfW funding. There is a decentralized ventilation system by Lunos.
I have been reading about different materials and came across Neopur.
The plan was to use WGL032 with a thickness of 160 mm (6.3 inches). Unfortunately, this material contains crude oil. In case of fire, it reportedly ignites and burns very quickly—within a very short time (at least within the 20-minute typical response time of the fire department). Additionally, it melts and drips. The advantages are good insulation value, a reasonable price, relatively easy installation (including the use of countersunk plastic anchor plugs to avoid visible marks later), and the fact that the material does not necessarily have to be protected from moisture during and after installation.
However, the fire risk is troubling me. Of course, one assumes the house will not catch fire for the next 300 years, but in the worst case, this is a significant disadvantage. My biggest concern is that the fire could spread extremely quickly within 5–6 minutes. It already takes about 5–10 minutes to notice a fire—if it is noticed at all.
Rockwool offers an interesting alternative product, Coverrock II (with WGL035) combined with a plaster carrier board. Similar countersunk anchors can be used here. The price, however, is about twice as high. I can’t comment on the installation process yet. I would need to protect the stone wool from moisture and plaster it relatively quickly. The obvious advantage is that this material is not flammable or at least much less flammable and does not drip.
Who among you has already installed these materials and maybe even has some years of experience?
Who can recommend certain materials?
I’m not looking to debate the general pros and cons of external wall insulation. The insulation will be 160 mm (6.3 inches) thick regardless (electrically operated exterior roller shutters with plaster carrier).
As you can see, I’m quite concerned about the choice of material. Sorry for writing so much. I would really appreciate any advice!
@BeHaElJa Thanks for your reply – yes, I have these kinds of wood fiberboards on my roof, for example. They are really a great product. The fungicides you mentioned, which are often used against algae growth, apparently are not included in some of them (because they are no longer needed); I still need to read up on that in more detail. But your point is valid, yes.