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Questions before potential house purchase (uninsulated concrete slab)
Hello!
My partner and I are looking for a house in Umeå and have found one that has about what we are looking for within our budget. The house is an old bakery cottage from the 1800s that was moved to its current location in the 70s and placed on a concrete slab. Around the turn of the century, the current owner bought the house and cast an extension of the slab, moved the house over to the new part, and built an extension of the house on the old one (as I understand it). Waterborne floor heating has been installed in all the rooms on the ground floor, and as I understand, it's not an optimal combination?
I have received the following information from the realtor:
Bathroom, hallway: Concrete slab, overlay (concrete) with pipes for floor heating in, leveling compound, tiles (bathroom waterproofing and all that)
Laundry room: Concrete slab, overlay (concrete) with pipes for floor heating in, leveling compound, floor mat
Bedroom: Concrete slab, overlay (concrete) with pipes for floor heating in, foam, wooden floor
Kitchen: Concrete slab, some sand to level the somewhat poor finish on the 70s slab (footprints, etc.), foam* boards with milled grooves for floor heating pipes, plates for floor heating, floor chipboard, leveling compound (on some parts), floor mat.
Living room: Concrete slab, foam* boards with milled grooves for floor heating pipes, plates for floor heating, foam, wooden floor (14 or 15 mm). Under the stove, there is an overlay on the concrete slab (due to weight)
* Foam for me but there is probably some other technical name
Is this an obvious risk that should discourage us from a potential purchase, or should any possible moisture damage have already occurred 15 years after renovation?
Grateful for your response!
My partner and I are looking for a house in Umeå and have found one that has about what we are looking for within our budget. The house is an old bakery cottage from the 1800s that was moved to its current location in the 70s and placed on a concrete slab. Around the turn of the century, the current owner bought the house and cast an extension of the slab, moved the house over to the new part, and built an extension of the house on the old one (as I understand it). Waterborne floor heating has been installed in all the rooms on the ground floor, and as I understand, it's not an optimal combination?
I have received the following information from the realtor:
Bathroom, hallway: Concrete slab, overlay (concrete) with pipes for floor heating in, leveling compound, tiles (bathroom waterproofing and all that)
Laundry room: Concrete slab, overlay (concrete) with pipes for floor heating in, leveling compound, floor mat
Bedroom: Concrete slab, overlay (concrete) with pipes for floor heating in, foam, wooden floor
Kitchen: Concrete slab, some sand to level the somewhat poor finish on the 70s slab (footprints, etc.), foam* boards with milled grooves for floor heating pipes, plates for floor heating, floor chipboard, leveling compound (on some parts), floor mat.
Living room: Concrete slab, foam* boards with milled grooves for floor heating pipes, plates for floor heating, foam, wooden floor (14 or 15 mm). Under the stove, there is an overlay on the concrete slab (due to weight)
* Foam for me but there is probably some other technical name
Is this an obvious risk that should discourage us from a potential purchase, or should any possible moisture damage have already occurred 15 years after renovation?
Grateful for your response!
Sent a few additional questions to the realtor:
In the bathroom, hallway, laundry room, and bedroom, is there completely no insulation in the floor?
-No, in all overlays there is insulation-reinforcement-floor heating pipe (in that order)
In the kitchen and living room, has styrofoam (or foam plastic?) been laid directly on the concrete slab without a ventilating layer (e.g., platon mat)?
No, first plastic as a moisture barrier
How thick is the insulation in these rooms?
-Living room (i.e., the new slab we made) 7 cm (+ 7 cm in the concrete slab)
Kitchen 7 cm plus what's in the old slab, how much that is we can't say since we didn't pour it
Is the foam in the living room moisture-barrier?
-No, the plastic is the moisture barrier, see previous answer
Is there any organic material in contact with the concrete slab?
-No
Is the concrete slab drained?
-The new slab is drained, in connection with doing it, digging was done around the entire house to install the new water and sewage connection, the digging also improved slopes from the house, etc. It was also discovered that drainage pipes were at the old slab.
In the bathroom, hallway, laundry room, and bedroom, is there completely no insulation in the floor?
-No, in all overlays there is insulation-reinforcement-floor heating pipe (in that order)
In the kitchen and living room, has styrofoam (or foam plastic?) been laid directly on the concrete slab without a ventilating layer (e.g., platon mat)?
No, first plastic as a moisture barrier
How thick is the insulation in these rooms?
-Living room (i.e., the new slab we made) 7 cm (+ 7 cm in the concrete slab)
Kitchen 7 cm plus what's in the old slab, how much that is we can't say since we didn't pour it
Is the foam in the living room moisture-barrier?
-No, the plastic is the moisture barrier, see previous answer
Is there any organic material in contact with the concrete slab?
-No
Is the concrete slab drained?
-The new slab is drained, in connection with doing it, digging was done around the entire house to install the new water and sewage connection, the digging also improved slopes from the house, etc. It was also discovered that drainage pipes were at the old slab.
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