Green Building Forum - Drying damp in a wall Fri, 10 Jul 2026 01:30:18 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Drying damp in a wall https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296137#Comment_296137 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296137#Comment_296137 Sat, 07 May 2022 15:40:10 +0100 marsaday
The the water entered the gully and then drained away out through the outlet. This probably blocked up over 20 yrs ago as it had a big holly tree root growing in it.

I have swapped out the damaged gully and a bit of clay pipe for new plastic so all good now.

The damp wall now has salt coming out. So am i right in thinking the wall is drying if the salts are now showing through ?

If so what is the best course of action. I know we need to take off the plaster and recoat with a salt blocking plaster, but do we wait a year or do we just go ahead and do it now. The wall is not offending anyone or causing a visual issue.]]> Drying damp in a wall https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296138#Comment_296138 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296138#Comment_296138 Sat, 07 May 2022 17:11:53 +0100 tony
Strip wall now, keep air free to circulate, the salts will most likely be sodium nitrate, white crystals.

Ensure fully dry before replastering]]> Drying damp in a wall https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296140#Comment_296140 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296140#Comment_296140 Sat, 07 May 2022 20:09:18 +0100 marsaday Drying damp in a wall https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296141#Comment_296141 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296141#Comment_296141 Sat, 07 May 2022 20:51:33 +0100 tony
Best thing is to let the brickwork dry out]]> Drying damp in a wall https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296145#Comment_296145 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296145#Comment_296145 Sun, 08 May 2022 17:10:29 +0100 marsaday Drying damp in a wall https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296149#Comment_296149 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296149#Comment_296149 Mon, 09 May 2022 09:23:07 +0100 fostertom Posted By: tonyI would wait six monthsfor six months of summer, to be precise!]]> Drying damp in a wall https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296153#Comment_296153 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17466&Focus=296153#Comment_296153 Tue, 10 May 2022 10:26:41 +0100 Nick Parsons