ᐅ Floor construction in an old oil storage cellar with underfloor heating and insulation
Created on: 29 Dec 2020 11:21
F
Floha01Hello,
I am currently having an old oil tank cellar on the ground floor converted into a kitchen.
However, I am concerned about properly planning the floor, and before consulting a professional—who will likely also install the floor—I would like to inform myself in advance to at least gain a basic understanding of the topic.
The concrete floor is to be equipped with an electric underfloor heating system (a combined heat and power unit is available, but there are no heating pipes in the cellar) and constructed in such a way that any remaining oil odor in the room cannot escape through the floor. I suspect that traces of oil remain in the floor and on parts of the walls (which will be removed anyway).
The goal is therefore:
- A warm tiled floor in the cellar.
- No oil odor
The following work has been carried out so far:
- Removal of the old oil tank by a specialist company.
- Cleaning of the entire room with a bacterial solution that binds or converts oil and oil odor, followed by thorough cleaning with water and floor cleaner. The oil odor is now significantly reduced but still present.
Since a black paint layer (presumably an oil tank sealant) remains on the floor and parts of the walls, I assume a sealant is present.
My proposed floor build-up is:
Concrete floor – primer on the existing paint layer – adhesive – 30mm (1.2 inches) XPS insulation boards with coating on both sides for tiling – electric underfloor heating embedded in flexible mortar – tiles
The questions I have are:
Am I on the safe side regarding possible oil residues in the floor and the odor?
Should the surface be flame treated beforehand?
Is the build-up sufficiently sealed so that no odor can escape through the floor, if any remains at all?
If not:
What would be the ideal adhesive for bonding the insulation boards? I was thinking of standard flexible mortar, or as an alternative to improve sealing possibly epoxy resin between the concrete and insulation boards.
Does such an airtight base make sense, or could it damage the floor in the long term?
I would appreciate any tips and thoughts on this.
I am currently having an old oil tank cellar on the ground floor converted into a kitchen.
However, I am concerned about properly planning the floor, and before consulting a professional—who will likely also install the floor—I would like to inform myself in advance to at least gain a basic understanding of the topic.
The concrete floor is to be equipped with an electric underfloor heating system (a combined heat and power unit is available, but there are no heating pipes in the cellar) and constructed in such a way that any remaining oil odor in the room cannot escape through the floor. I suspect that traces of oil remain in the floor and on parts of the walls (which will be removed anyway).
The goal is therefore:
- A warm tiled floor in the cellar.
- No oil odor
The following work has been carried out so far:
- Removal of the old oil tank by a specialist company.
- Cleaning of the entire room with a bacterial solution that binds or converts oil and oil odor, followed by thorough cleaning with water and floor cleaner. The oil odor is now significantly reduced but still present.
Since a black paint layer (presumably an oil tank sealant) remains on the floor and parts of the walls, I assume a sealant is present.
My proposed floor build-up is:
Concrete floor – primer on the existing paint layer – adhesive – 30mm (1.2 inches) XPS insulation boards with coating on both sides for tiling – electric underfloor heating embedded in flexible mortar – tiles
The questions I have are:
Am I on the safe side regarding possible oil residues in the floor and the odor?
Should the surface be flame treated beforehand?
Is the build-up sufficiently sealed so that no odor can escape through the floor, if any remains at all?
If not:
What would be the ideal adhesive for bonding the insulation boards? I was thinking of standard flexible mortar, or as an alternative to improve sealing possibly epoxy resin between the concrete and insulation boards.
Does such an airtight base make sense, or could it damage the floor in the long term?
I would appreciate any tips and thoughts on this.
A small update on the side in case someone with a similar issue reads this again.
After flame cleaning and priming with a deep primer, the smell was practically gone.
The rest was taken care of by the construction dust from the start of the interior work...
A special coating will probably no longer be necessary; I will continue planning as usual.
After flame cleaning and priming with a deep primer, the smell was practically gone.
The rest was taken care of by the construction dust from the start of the interior work...
A special coating will probably no longer be necessary; I will continue planning as usual.
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