Some signs include brown plaster staining on your chimney breast or you might have damp patches on your chimney breast that come and go. Is a small area and is away from bathroom, kitchen etc. 1 patch is various distinct damp patches covered with the small black mold spoors and the other is above the skirting board and again has mold. It is much easier to patch a small area of drywall ceiling than to replace entire drywall … If the dampness has a tide mark on the wall, the … A 'smart' model will switch on automatically when humidity rises about a certain percentage. You should not rely on this information to make (or refrain from making) any decisions. Above – Stains on the rear bedroom chimney breast and ceiling. Water stains are probably the most common types of ceiling stains and man are they UGLY! Penetrating damp 56 posts. russjacks Forumite. A damp patch is forming on the ceiling in my kitchen and I’m concerned that it will get worse if the roof isn’t fixed. Heat all the rooms in a home to equal temperature, as it's often the difference in temperature between two rooms that causes window condensation. UK property worth £70k or more? Depending on the seriousness of the damp patch, repainting may not be enough – you might need to have that part of your ceiling replaced after the source of the moisture has been stopped. It’s natural to want to get rid of an unsightly water stain on your ceiling, but this should be the last step of the process. There might be a tear in your waterproof seal, for example, or a blocked guttering system that’s not draining rainwater effectively. Rising damp is usually found in older homes, where damp-proof courses aren't automatically built into the construction, and new windows (double-glazed for example) and non-porous paint and other renovations have made it hard for moisture to escape. Peeling paint and wallpaper, often with wet patches; A white, powder-like substance on the wall, left by soluble salts dissolved in the water ; Tide marks rising up the wall ; If the problem is coming up from the floor, you may notice floor coverings lifting up. We do however have a bathroom extractor which runs through the ceiling of the bathroom out the vented roof tile. Plumbing leaks can also cause floorboards to become soft over time. Implications Damp is not a particularly common problem in internal walls, and the cause may be down to leaking pipes such as mains water supplies, including those serving any adjoining houses. If it has been raining, and you see damp patches starting to take shape, it’s likely to be due to one of the following contributory causes: – A tile on the roof is broken, causing leakage. How to Fix a Leak From the Upstairs Bathroom. Be aware that mould spores can cause allergies, so if you're tackling a big patch, keep windows open and wear a protective mask and rubber gloves. There may be damp patches on the chimney breast or the ceiling above it, or possibly the walls around it. Noticing a damp patch on your ceiling is one of the biggest indications that there’s an issue with your roof. That’s right. 1 patch is various distinct damp patches covered with the small black mold spoors and the other is above the skirting board and again has mold. Replace filters regularly or if suitable, wash in the dishwasher. It is much easier to patch a small area of drywall ceiling than to replace entire drywall panels overhead. 21 replies 54.7K views K1RST1E_2 Forumite. Hi I have an early 19th century stone cottage, the internal wall of the gable end downstairs has lots of dark greasy patches of damp, it never gets mouldy but it doesn’t seam to go away either. Damp is never good, but once you know what to look for you can start eradicating it from your home. Chartered surveyor John Conlin answers reader questions on damp. It’s pretty hard to miss a ceiling stain, especially since most ceilings are white, so there’s this big, yellow or brown disgusting looking patch somewhere on that white canvas. When enough frost builds up in … Damp drywall will dry out just fine if you get the water out of it quickly, but if water pools for any length of time, the paper backing will begin to disintegrate or become food for mold. Melanie Whitehouse The warm moist air coos down, and condenses back into water. When the humidity level reaches over 60% you are more likely to experience mould growth, especially if the room is 20C or warmer. If walls are mouldy, wipe down with mild detergent, then dry with a clean rag. 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