Hey everyone,
I've always got good advice from here so just wondering if someone could point me in the right direction.
Our house is a 1930's semi with solid wall construction. About 2 years ago we completed an extension on the side of the house which needed rendering but as the render on the old house wasn't in good shape we thought it would be best to take off the old also and have it all rendered the same.
Most of the house external except the front facing aspect is now cavity walled because of extensions. I started to notice the wall paper in the front room lifting and damp/mold appearing above the skirting board since the new render was put on. I initially assumed it was because the old render was taken off and it took a month or so to re-render and as we weren't living in the house whilst we did the work it wasn't being heated as usual. It hasn't gone away and if anything is getting worse. This is only affecting below the bay window area internally. The pillars that form the porch are also damp on the inside but this is all outside so I'm not as bothered.
Outside I've noticed that the render seems to dry out fairly well except for the bottom foot or so. I've had a look and they've used a stop bead instead of any bellcast type but not sure this would cause this anyway? The bottom might be residual water trickling down but surely it shouldn't be getting to the stage it's getting into the house? Any obvious things I can do to rectify?
I changed over the bricks below the DPC a few years ago as they were all spalled. I repointed with lime mortar to match the original and put in a new plastic DPC where the old was damaged. We hadn't got anything damp in the years before until the rendering was redone so don't feel the DPC is broken and stop beading fits above the DPC so it isn't bridged.
I've attached some photos of before / base coat of render placed / finished / damp etc to visualise. Render is PRB monocouche render system.
Thanks again for the advice.
I've always got good advice from here so just wondering if someone could point me in the right direction.
Our house is a 1930's semi with solid wall construction. About 2 years ago we completed an extension on the side of the house which needed rendering but as the render on the old house wasn't in good shape we thought it would be best to take off the old also and have it all rendered the same.
Most of the house external except the front facing aspect is now cavity walled because of extensions. I started to notice the wall paper in the front room lifting and damp/mold appearing above the skirting board since the new render was put on. I initially assumed it was because the old render was taken off and it took a month or so to re-render and as we weren't living in the house whilst we did the work it wasn't being heated as usual. It hasn't gone away and if anything is getting worse. This is only affecting below the bay window area internally. The pillars that form the porch are also damp on the inside but this is all outside so I'm not as bothered.
Outside I've noticed that the render seems to dry out fairly well except for the bottom foot or so. I've had a look and they've used a stop bead instead of any bellcast type but not sure this would cause this anyway? The bottom might be residual water trickling down but surely it shouldn't be getting to the stage it's getting into the house? Any obvious things I can do to rectify?
I changed over the bricks below the DPC a few years ago as they were all spalled. I repointed with lime mortar to match the original and put in a new plastic DPC where the old was damaged. We hadn't got anything damp in the years before until the rendering was redone so don't feel the DPC is broken and stop beading fits above the DPC so it isn't bridged.
I've attached some photos of before / base coat of render placed / finished / damp etc to visualise. Render is PRB monocouche render system.
Thanks again for the advice.
