Chimneys & Fireplaces Question

Damp internal chimney breast wall

For quite a few years I have noticed that the chimney breast wall (upstairs and downstairs) is damp. We have had various chimney work done* to allieviate the problem but still it persists. We had a surveyor who, using a damp meter, said that the saturation of the wall was nudging 100% and it was not rising damp. The upstairs chimney breast is vented and there is an open fireplace downstairs.

*1. The apron between the chimney and the roof was replaced
2. A vented pot was put on the top of the chimney
3. The mortar (flaunching) was renewed on the chimney top
4. The flashing has been renewed in the near past.

Any ideas what we can do now?

Thank you

Mrs Marguerite Selby

2 Answers

It sounds like condensation. As the warm air from inside rises and meets the cold air.Is the stack near the kitchen?.Are the air bricks outside and not just inside cut into the flue.If the chimney is on an outside wall cut an air brick in the bottom outside so theres air flow.

Good luck they can be a pain sometimes to fix.

Answered 1st Feb 2013

A & P Allison Building contractors

Member since 22 Jan 2013

could be the brickwork,you dont say how old the property is,

Answered 4th Feb 2013

ADR Property Maintenance

Member since 1 Mar 2009

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