Insulate floor from above with foam board!?

Robert63 · 20 Apr 2017 at 9:37 PM

Need a bit more insulation in the floor, a terrace I enclosed. Can't do it from the underside and wonder if it's possible to do from above with cellplast? Can build up a maximum of 10 cm. Is it possible? Can you lay flooring directly on the cellplast?

Tiger79 · 20 Apr 2017 at 9:59 PM

Remove the floor and raise the studs.

Robert63 · 20 Apr 2017 at 10:27 PM

Tiger79 said:
Remove the floor and raise the joists.

Unfortunately not an option.

SBH · 20 Apr 2017 at 10:49 PM

it works to lay flooring on, depending on the load. so it can cause creaking in the floor

Robert63 · 21 Apr 2017 at 8:03 AM

SBH said:
it works to lay flooring on, depending on the load. so it can cause squeaking in the floor

What do you think about this one? https://www.bygghemma.se/hus-och-by...plast/cellplast-sundolitt-xps-250-sl/p-317711

Robert63 · 21 Apr 2017 at 9:17 AM

Received information that EPS S100 should be able to handle laying a floating floor. Does anyone have experience with this?

Rabbithole · 21 Apr 2017 at 9:41 AM

I imagine there is some risk of creaking in the joints, so maybe vinyl click is a good alternative to wooden flooring?

SBH · 21 Apr 2017 at 10:53 AM

Robert63 said:
What do you think about this one? [link]

just takes longer time

SBH · 21 Apr 2017 at 10:54 AM

Robert63 said:
I have received information that EPS S100 should be able to handle floating floor installation. Does anyone have experience with this?

sure, it works for a few years

13th Marine · 21 Apr 2017 at 11:00 AM

Father-in-law's house built in the 70s (or early 80s) has a slab on the ground, foam plastic as insulation on top, and finally flooring. There haven't been any problems as far as I understand.

SBH · 21 Apr 2017 at 11:04 AM

13th Marine said:
Father-in-law's house built in the 70s (or maybe early 80s) has a concrete slab foundation, insulation with foam plastic on top, and finally flooring. As far as I understand, there have been no issues.

glued parquet?

13th Marine · 21 Apr 2017 at 11:29 AM

Plastic flooring in large parts. I think there's chipboard there too.

SBH · 21 Apr 2017 at 12:03 PM

13th Marine said:
Plastic matting in large areas. I think there's chipboard there too.

yes, that explains. the board provides a larger area

Robert63 · 21 Apr 2017 at 1:09 PM

SBH said:
just takes longer

How do you mean that the product would take longer?

SBH · 21 Apr 2017 at 1:51 PM

Robert63 said:
How do you mean that product would take longer?

there are different levels of hardness in "frigoliten"