Hi,
I live in a late 1980s detatched house. Cavity walls, external wall is rendered concrete block, and internal wall is thermalite block contruction.
I painted the house about three years ago, and noticed a hairline crack on the external wall. Just dug it out and filled it, and it seemed all was good. There was no evidence of internal cracking.
Now, over the last three or four months, the external crack has reaperead, and the render has blown from the wall in places - although I put this down to ingress of moisture, and then freezing in the cold weather recently.
the crack is about 2 meters long, and runs in a diagonal.
Over the weekend, I noticed a slight crack in the wallpaper of the coresponding internal wall (first floor), so pulled the wallpaper back to reveal a large (well, large to me) crack running from beneath the window cill, behind the rad and to the floor. Mainly vertical. The crack does not appear in the room below.
The external image doesn't show the crack that well, but it runs from the right hand end of the top window cill to the left hand end of the lintel above the bottom window.
For reference, no recent (in the last 10 to 15 years) building work has been carried out.
Do I need to worry about these...should I call the insurance company?
If I needn't bother the insurers, what remedial action should I take?
Oh, and please no comments about the bad taste woodchip wall paper and dodgy curtains...these were a legacy from the last owner.
Thanks.
I live in a late 1980s detatched house. Cavity walls, external wall is rendered concrete block, and internal wall is thermalite block contruction.
I painted the house about three years ago, and noticed a hairline crack on the external wall. Just dug it out and filled it, and it seemed all was good. There was no evidence of internal cracking.
Now, over the last three or four months, the external crack has reaperead, and the render has blown from the wall in places - although I put this down to ingress of moisture, and then freezing in the cold weather recently.
the crack is about 2 meters long, and runs in a diagonal.
Over the weekend, I noticed a slight crack in the wallpaper of the coresponding internal wall (first floor), so pulled the wallpaper back to reveal a large (well, large to me) crack running from beneath the window cill, behind the rad and to the floor. Mainly vertical. The crack does not appear in the room below.
The external image doesn't show the crack that well, but it runs from the right hand end of the top window cill to the left hand end of the lintel above the bottom window.
For reference, no recent (in the last 10 to 15 years) building work has been carried out.
Do I need to worry about these...should I call the insurance company?
If I needn't bother the insurers, what remedial action should I take?
Oh, and please no comments about the bad taste woodchip wall paper and dodgy curtains...these were a legacy from the last owner.
Thanks.