Damp in underground garage - suggestions
Discussion
If any builders etc. can make any suggestions I would be grateful 
We have a single garage that is built into a hill and covered on three of the outside walls single skin con block walls by the mud/chalk of the hill. The top/roof is cast concrete with steel I-beam's across the width.
During cold spells and after rain the inside of the garage becomes a damp hole with water dripping off the I-beams and collecting on the floor. To keep the humidity under some sort of control a dehum runs in there most nights - not that a small de-hum is very effective.
So I believe the majority of the moisture in there comes from condensing during periods of high humidity/cold. After all being built into a hill the air temp within the garage remains more constant when compared to outside?
Would it be worth getting some marine ply and insulation and bolting up to the I-beams?
We have a single garage that is built into a hill and covered on three of the outside walls single skin con block walls by the mud/chalk of the hill. The top/roof is cast concrete with steel I-beam's across the width.
During cold spells and after rain the inside of the garage becomes a damp hole with water dripping off the I-beams and collecting on the floor. To keep the humidity under some sort of control a dehum runs in there most nights - not that a small de-hum is very effective.
So I believe the majority of the moisture in there comes from condensing during periods of high humidity/cold. After all being built into a hill the air temp within the garage remains more constant when compared to outside?
Would it be worth getting some marine ply and insulation and bolting up to the I-beams?
hiya.
It sounds like there was no barrier put in place (DPM) damp proof membrane, to stop the water from the earth, passing into the bricks and into your garage. I would contact a company that offers basement waterproofing, which would be along the same sort of lines as your problem.
It involves fitting a waterproof coating inside the garage walls, and should stop any further rain penetration, although its prob not cheap, but i dont think apart from maybe dry lining it?? Hope that helps.
It sounds like there was no barrier put in place (DPM) damp proof membrane, to stop the water from the earth, passing into the bricks and into your garage. I would contact a company that offers basement waterproofing, which would be along the same sort of lines as your problem.
It involves fitting a waterproof coating inside the garage walls, and should stop any further rain penetration, although its prob not cheap, but i dont think apart from maybe dry lining it?? Hope that helps.
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