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Damp Proofing
Damp-proofing of Garage Conversion?
Anonymous user 1 March 2024 - 2.59 PM
Hi, our garage had a solid concrete slab and our builder has laid Celotex and a tongue and groove chipboard floor. I asked him about a Damp Proof Course and was told “The celotex is acting as a damp membrane and the chipboard is not fixed to anything, it is a floating floor with glued joint. Depending on what flooring you’re having an additional membrane could go directly under the new floor.” Is this actually true? Surely you need the DPM under the wooden chipboard?
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5 Answers
Creative Construction and Design (CCD )
Hi you have to start from the beginning break out all the concrete flooring install air vents as required,Damp Injection all the wall supporting bricks to keep the supporting timbers from touching the floor you can TG chip Boarding for the floor finish of with a Laminate flooring
Job done. Air circulation is the main thing
Answered13 December 2022
1
Damp Investigations
Actually , there will be interstitial condensation under the chipboard, the insulation is not a DPM and there will eventually be actual water on the slab; the surrounding walls will become damp and you’ll have to start over.
Answered14 December 2022
1
Anonymous user
Order from bottom upwards should be: DPM, rigid insulation, solid base for floor (conrete, sreed), chip board, posibly top floor layer if any .. Also, pay attention to area where boards touch walls. They should be touching something similar to DPM, DPC or foam solution ..
Answered23 November 2022
0
Masservices247
DPM , insulation and then screed different system if floating floor make sure all gaps are covered and dpm 150 at walls cut off after
Answered26 November 2022
0
Rdm plastering
You should start with a membrane but as the slab is all ready down you need to lay a plastic DPM or paint an epoxy floor resin which will work as a DPM and then lay the floor back down
Answered17 December 2022
0