Hello.
I need help interpreting the foundation plans for my house, which I retrieved from the municipality today.
When we bought the house, we assumed it was an uninsulated slab based on what the inspector said. There were no foundation plans in the house, and the previous owner didn't have much knowledge about such details. The only thing visible on the existing plans was that the floor was raised (floating). However, the previous owner mentioned that the slab was extra thick compared to other slabs.
On these plans, it seems like there is 70mm of mineral wool under the slab if I read it correctly?
What do the experts say about such a slab from a construction standpoint? We are going to renovate a bit and will need to replace the flooring in some rooms. I want to know if it is worthwhile to install a ventilated floor or if it's unnecessary. The house was built in '83 and it seems there haven't been any moisture issues in the house after nearly 40 years.
Best regards
I need help interpreting the foundation plans for my house, which I retrieved from the municipality today.
When we bought the house, we assumed it was an uninsulated slab based on what the inspector said. There were no foundation plans in the house, and the previous owner didn't have much knowledge about such details. The only thing visible on the existing plans was that the floor was raised (floating). However, the previous owner mentioned that the slab was extra thick compared to other slabs.
On these plans, it seems like there is 70mm of mineral wool under the slab if I read it correctly?
What do the experts say about such a slab from a construction standpoint? We are going to renovate a bit and will need to replace the flooring in some rooms. I want to know if it is worthwhile to install a ventilated floor or if it's unnecessary. The house was built in '83 and it seems there haven't been any moisture issues in the house after nearly 40 years.
Best regards
Thank you for the confirmation. What does this mean? Do I still have a non-insulated slab or is it insulated? Semi-insulated? Is it still a risk construction? Am I reading correctly that the slab is 20 cm thick across the entire slab?
If the note can be trusted, it could be a 200mm double-reinforced slab, however, it's not a proper revision so it's hard to know if this is accurate. Less insulation leads to warmer ground, which in turn leads to a more humid slab. Whether it is a risk construction or not depends a bit on what you plan to do on the slab.
I have not planned to cast floor heating into the slab anyway, it will probably just be troublesome. However, we are considering switching to floor heating in the underlayment or the floating insulation. Currently, the slab has 70mm of insulation (stone wool boards?) underneath and also about 70mm of foam insulation on top, what does that mean for the temperature in the slab in relation to the ground and indoor air?
A side note is that when we did the drainage, there was mineral wool frost insulation around the house, but it was completely soaked and was removed. The drainage from the construction year was a disaster since there was nothing for stormwater, and the downspouts just directed the water onto the ground, so the drainage had to handle it instead.
A side note is that when we did the drainage, there was mineral wool frost insulation around the house, but it was completely soaked and was removed. The drainage from the construction year was a disaster since there was nothing for stormwater, and the downspouts just directed the water onto the ground, so the drainage had to handle it instead.
