Our chimney had a leak (failed flashings), leading to the chimney in our upstairs bedroom becoming very damp.
The leak is now fixed and we've hacked off the plaster, which was very damp, to help dry out the brickwork below. Once dry, we plan to re-plaster with a membrane below to prevent any salts coming back through the new plaster.
The brick has been exposed for about a month now and so the visible damp has not dried back much. I keep the window open to allow air to circulate, and have also tried heating the area up with fan heaters, which seems to reduce the damp temporarily, but then it comes back again.
I have a damp meter which gives readings on the visibly damp bricks from 0.8 to as high as 2.0. Some salting has appeared.
Does anyone have any tips for drying out damp brickwork? Or any suggestions on how long it might take to dry out? I imagine it must be quite saturated to not have dried back already.
I've attached a photo. Any help much appreciated. Thanks.
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