- Damp Cellar – Solutions?
Anybody ever had a damp cellar sorted in an old house?
I’d be interested to know the options available. I guess they range from leaving door open to allow air to circulate (£free) to a dehumidifier (£hundreds) to fully lined walls, sump and pump, and tanking kind of thing (£thousands). But I really don’t know the first thing beyond that.
Any good resources online? Only stuff I’ve found has been trying to sell me things.Posted 4 years agospchantlerMember
two kinds of damp. water ingress and condensation. tanking will sort water ingress, insulation will sort condensation, BUT, its not as simple as that. if there is water ingress, tanking will only move the problem, if there is a source of water, it will move somewhere else (hopefully next door), but most commonly along a party wall, or up the wall in question. a combination of bitumen tanking, silicone injection, insulation and ventilation is the way to go, but doesn’t always guarantee results. speak to the experts and talk to their previous customers. damp is the most difficult thing to remedy in older houses and can be expensive. where are you? what kind of house?Posted 4 years agojackthedogMember
It’s not my house. The cellar here (rented house) is thankfully nice and dry.
It’s my parent’s place, stone built end terrace, late 1800s, situated half way up a big hill in Sheffield. Cellar under living room at front of house. They’ve been talking about getting it sorted as they want to put the tumble dryer and a chest freezer down there, but nobody has any idea of the work required.
It’s not soaking, just… damp, like surface rust on tools, cardboard boxes go floppy after a few weeks kind of damp. Currently the only ventilation is the old coal chute which has a grill over it.Posted 4 years agoSelledMember
Give this a try, will cost less than 100 pounds. Restrict the venting and use a dehumidifier! I know it’s the opposite to what most people have said but…..
Cellars are cold
Cold air holds less water
Now ventilate with relatively warm air that’s loaded with moisture, when the air hits cold surfaces (everything in cellar) it’s going to leave condensation! Tools go rusty and cardboard goes soft and mouldy!
I had the same issue now it’s under control, on hot days I dehumidifier, otherwise I keepo all doors closed.
Of course, the complete fix is to dig up round the cellar, insulate on the outside and seal with that thick plastic!Posted 4 years agoBigJohnSubscriber
I think that’s probably airflow. Our cellar (about 200+ years old) has been flooded to about 600mm for all of the winter and only drained about a month ago. The water table rose and there’s nothing you can do about that in a hurry.
It’s been doing that on and off since it was dug and though it’s stone built there’s plenty of moisture-retaining material there.
However, it’s well ventilated and everything above the water level has stayed in perfect condition.
I’ve now dug a big hole in the floor (Screwfix Titan rotary hammer for £70 made cutting a 400mm hole into 150mm reinforced concrete a pleasure – every hole should have one, although still suffering and taking the diclofenac and co-codamol from trying to lift too much rubble in too few trips) and put in a £70 screwfix sump pump to keep it under control in future. Well. the distribution board is down there and you don’t want to put your wetsuit on every time the power trips.Posted 4 years agochorltonSubscriber
Did mine a couple of year ago. It had stone flags plonked on the soil and we had puddles every time it rained so I dug it out and concreted with a damp proof membrane underneath and having a simple ventilation pipe. I just painted the walls so while we still get moisture coming through the front wall (we are on a hill), it is dry.Posted 4 years ago
Dry enough to have a freezer and other things down there.
Ventilation’s the key.oddjobMember
We tried the ventilation option and it wasn’t enough so now we have a dehumidifier running down there that kicks in when humidity hits 60% and just circulates the air otherwise. It needs emptying about once a week in the summer and daily in the winter when we dry the washing down there.
I don’t think it’s much more expensive to run than a fridge.Posted 4 years ago
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