Dark Patches On Chimney Breast Wall

Inset your cooker in the kitchen. Both mold and algae can show up as dark or other colored stains on building ecterior surfaces. These growths may appear on natural wood stained wood paitned wood vinyl or other plastics aluminum. This is a short example of the problem I investigated this week in Harrogate West Yorkshire.

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Salt contamination from concentrated flue gas salts which persist has caused this issue.

Dark patches on chimney breast wall. By patches I mean like grease marks on the chimney breast walls I freshly painted my bedroom in a good quality magnolia emulsion and now these marks have appeared and the walls feel damp no. Why does a chimney suffer from damp. Typical symptoms are damp patches which may or may not be salty looking.

Chimney creosote efflorescence soot water leak stain on ceilings walls floors What causes stains in on or around chimneys and what do these stains mean. There may be damp patches on the chimney breast or the ceiling above it or possibly the walls around it. The salts themselves are hygroscopic moisture attracting and when present on your chimney area they attract the moisture within a room space and can create damp patches on your chimney breast.

Above Stains on the rear bedroom chimney breast and ceiling. You might also see staining or discolouration in these areas. Stoves and boilers can generate large volumes of condensate under their normal operation.

Damp can manifest itself in a number of different ways stained patches on a wall mould and mildew on walls dark or discoloured patches of plaster lifting or peeling wallpaper a musty smell or white powdery salt-like substances on the walls. First port of call would be to have a roofer call by and check whether your leadwork is all intact and performing its proper function on older homes in particular the back gutter bit where roof meets chimney can be perforated by a slipped tile or slate. We point out that stains at chimneys are usually more than.

A picture in picture thermal image showing the dampness note the holes are warm still from the drilling of the mortar samples. These dramatic colours have become über trendy and do often look great in interior design features but Im quite happy to keep the walls as the backdrop to the drama of all the other items in the rooms. It is a total mystery and is really frustrating.

They were improving and going away but have recently appeared again Not after rain just generally cold weather. The only thing I did differently to any other walls is that I painted the walls initially using silk emulsion but ran out after I put one coat on the walls. Over a period of years these salts can then penetrate through the brick or block-work of your chimney breast and onto your inner walls.

When I first moved into this little cottage it was summer and warm and sunny as winter has approached and the rain and damp increased patches have started to appear on the chimney breasts. If rising damp is the problem then there will be tidemark up to one metre on the chimney breast. This is after you can see the hygroscopic salts on the chimney breast now damp looking patch at the top of the chimney breast also notice the vertical profile up the wall following BRE Digest 245.

These condensates once within the flue cool and return to liquid form. Plus the chimney has been well used and indeed a new gas fire surround has just been installed. Unsafe chimney conditions may be indicated by leaks stains or crud seeping out of a chimney connection or a chimney crack.

Hygroscopic salts created by the burning of fuel in your chimney can cause damp and cold patches to appear on your chimney breast and walls There is another type of salt deposit known as salts that appears as a crunchy raised white deposit. Rain water or other external moisture getting in. These marks are not wet greasy or even colder than the rest of the wall you can simply just see them.

You should also look out for dark or discoloured marks on the plaster and there will be a musty smell in the room specifically in the area where the chimney breast is located. Our walls are a calm colour as well Skimming Stone and a while back I was considering having dark chimney breasts too but in the end decided against it. Why Do Properties Suffer From Chimney Damp.

There will also be hygroscopic salts deposited on the walls. The patch on the chimney breast is the size of a cereal bowl again there were no signs of damp on that wall. Mold or Dark Algae on building Exterior Walls Siding Trim Roofs.

If you notice damp on your chimney breast you need to treat it as soon as possible. Hygroscopic salts drawing moisture into the walls. There are a few possibilities that could be causing your damp patches.

If the chimney breast you want to decorate is situated in the kitchen like one of ours a fantastic use of space is to open up a portion of the wall and fit. Your problem is probably a combination of issues chimney breasts were usually constructed with no DPC therefore when the roaring hot fire which used to pull all the damp up the flue was removed rising damp could have taken hold however the problem with chimneys is that they often have a rubble filled void either side of the fire opening this makes injection unsuitable as the moisture would rise through the rubble and beyond the dpc penetrating the walls. The most common causes of damp in your chimney breast are.

Hello I have had an on going problem with darks marks that wont seem to go away. Damp problems on chimney breasts are a completely different kettle of fish when it comes to diagnosis there is no way possible that you can actually diagnose if there is a small amount of free moisture in the wall with a damp meter damp meters generally measure resistance 15 of hygroscopic moisture content if hygroscopic salts are present even if the wall is bone dry will give a. This can then move through the wall of the flue and show up as dark stains on the face of the flu.

Condensation forming from inside the chimney. Fifi Mcgee Rangemaster Kitchener 90 Cooker IKEA BAR STOOLS. These symptoms of damp can appear at any time of the year.

The signs of chimney damp can be similar to the signs of regular damp except they all occur around your fireplace or chimney. Chimney-Caused Stains on Building Interior Surfaces.

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