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- 14 Jan 2024
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Hi all, I have had some issues with damp suddently appearing, and wondering if it's an issue with the ridge tiles, penetrating damp through brickwork, or something else. This damp patch along the top of the bathroom wall appeared just before Xmas. The position corresponds to the ridge of the 'outrigger' in the second picture.
I went up into the loft and noted a damp beam at the far end, the beam on which they are sitting also looks a bit darker at that end - access was a bit difficult so I didn't go any further. The mortar is crumbly and there are salts, as if dampness has been a recurring problem. There was loose sand in the putlog holes (blue arrow) which felt a bit damp, the beam next to the wall was also damp.
Some pictures from outside. I realise the valley, and slipped tiles needs sorting as well!
As that wall is the most exposed part of the house, I wondered whether penetrating damp from the continuous wind driven rain we have had might have been the problem. You can see the wall is wet in the image below. There is a sheen on the wall above the heated rooms, but particularly in the bathroom section. I had the wall repointed last year so the pointing is in good condition. They used lime mortar which I know is 'breathable' but perhaps it has become saturated due to the weather? That said, as I mentioned above, there are signs that there has been an issue here for some time.
What would your order of priorities be in addressing this? Is the main issue the ridge tiles or could it be windlashed rain and penetrating damp? My thoughts are 1. get the ridge tiles resets and the slipping tiles at the end sorted, and then 2. apply StormDry or similar to try and reduce the potential for penetrating damp.
I went up into the loft and noted a damp beam at the far end, the beam on which they are sitting also looks a bit darker at that end - access was a bit difficult so I didn't go any further. The mortar is crumbly and there are salts, as if dampness has been a recurring problem. There was loose sand in the putlog holes (blue arrow) which felt a bit damp, the beam next to the wall was also damp.
Some pictures from outside. I realise the valley, and slipped tiles needs sorting as well!
As that wall is the most exposed part of the house, I wondered whether penetrating damp from the continuous wind driven rain we have had might have been the problem. You can see the wall is wet in the image below. There is a sheen on the wall above the heated rooms, but particularly in the bathroom section. I had the wall repointed last year so the pointing is in good condition. They used lime mortar which I know is 'breathable' but perhaps it has become saturated due to the weather? That said, as I mentioned above, there are signs that there has been an issue here for some time.
What would your order of priorities be in addressing this? Is the main issue the ridge tiles or could it be windlashed rain and penetrating damp? My thoughts are 1. get the ridge tiles resets and the slipping tiles at the end sorted, and then 2. apply StormDry or similar to try and reduce the potential for penetrating damp.
