Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [damp]

Structural dampness is the presence of unwanted moisture in the structure of a building, either the result of intrusion from outside or condensation from within the structure. Please use this tag for queries related to all type of damp.

22 questions
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damp line behind toilet

There is a damp line being formed behind the toilet commode, as seen in the picture. Any suggestions on where the problem lies would be appreciated. Edit: I've added pictures of what it looks like with the lid off (the lid is usually left on) . I…
cd234
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6 answers

Giant wet patch appeared suddenly on wall and now filled with dark spots

Here is the image from the ground floor kitchen. This patch appears on wall between the two windows in the kitchen: Here is what is on the other side of the wall. Please note that the black gutter and the black pipes are all newly installed around…
quantum231
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How to cover large patch of damp?

In this bedroom there is a chimney breast. There is always a large patch of damp when on the bottom left. It can be seen in front of the chimney breast and also the side. In the winter this patch expands to cover almost all of the bottom of the…
gyuunyuu
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Wet exterior cinder block wall

This is a cinder block garage extension built on a concrete slab. I've noticed that when the weather is very humid/damp that the blocks become wet in certain areas. Is this something to be concerned about and if so, any suggestions on how to improve…
MarcGuay
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What is causing this wall to be so wet?

I am working on a house with a small bathroom on a west-facing wall with a window and sandwiched between a bedroom to the south and a bathroom to the north: The outside west-facing wall is made of brick and looks like this (and was recently…
Turkeyphant
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Why are there bubbles slowly appearing in my kitchen wall?

The wall is behind the range in my kitchen. We had it painted three years ago and now it has several bubbles in it. What could be causing them — would it be damp? Or something else? It's an exterior wall. There's no mold or other obvious signs of…
mpavey
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What is the glossy paint under our wallpaper, should I remove it and can I paint over it?

We recently bought a 1920s property in Yorkshire. The guttering on the north wall failed over the winter and there was rainwater running down the wall (mostly close to ground level) which has resulted in, or exacerbated, penetrating damp in that…
tardigrade
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1 answer

How can I dry out a wall soaked by a roof leak?

We had our roof repaired recently as the flashing had failed. I think water had been entering for a considerable time without us realising. A plasterer came and did a 'fix it' job and unfortunately didn't wait until the wall was completely dry. I…
hedron
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Which trade deals with extractor fan ducting?

We're getting a lot of damp around the extractor fan, and I'd like the flexible ducting (in the loft) to be replaced with rigid ducting - does anyone know which trade deals with extractor fan ducting? The extractor is behaving as expected (so…
dvniel
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What could be causing this moisture issue at the bottom of the middle wall?

We're baffled by this. Can someone help us solve this mystery? In our mobile home, we recently (as in within the past few days) discovered some moisture behind the baseboard in the middle of an interior wall. The moisture is only in the middle…
VeryConfusedHomeowners
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Self Levelling and Liquid DPM over damp on ground floor quarry tiles - disaster

I have a question about rising damp on quarry tiles ground floor in old building. I removed the old carpet and realised there was damp patches on the tiled floor below, im believe there is no dpm membrane and quarry tiles were laid over lime morter…
Wal Comps
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Damp appearing after flooring was put into ground floor room

This is a UK house build around 1900. The ground floor room had no flooring or carpet, just the subfloor was exposed. We decided to decorate the room with wood laminate flooring with an underlay and new paint. Few days later we observed signs of…
quantum231
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Small damp round spots on one groove of one oak floorboard

I would love any thoughts. For the last 6 months I have had some blackening along the groove of one oak floorboard. There are no pipes in the immediate vicinity. Nearest is a mains inlet about 3 ft away and a soil pipe that runs under the floor…
Jeannie
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Can I repaint over smoothened old plaster after removing damp paint, or do I need to remove also the plaster?o

I have penetrating damp in my living room. I have filled holes and cracks on the outside and have redone the window sill. Now I want to fix the interior wall, where the paint had bubbled up. I have peeled back some of the paint and have found what I…
Ogros
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Avoid perforating damp screen

I am insulating an exterior wall from the inside with mineral wool, metal studs, and plaster boards. I understand that I should attach a damp screen in between the insulating layer and the plaster boards. However, it seems to me that I would have to…
Pete L.
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