Cracks

[Edwardgriffiths]

Hi newbie here, just bought an house 6 months ago, we started to strip the wallpaper and on the interior we have found several cracks that goes from ceiling to floor, some parts of the crack we can push a piece of paper in which goes in at 20mm , external brick wall is fine, upstairs is fine and no cracks. We know it's been empty a while, maybe the house being warned up have done this. House is aprox 20 years old. Thanks in advance

 

[tony1851]

The crack is fairly even in width, so not a problem.
Normal shrinkage of aerated concrete block use on the inner skin.
Just get some Pollyfilla in it and forget it.

 

[Wayners]

I'd dig that out 25mm wide back to brick. If brick is cracked through shoot up bricks with bolt resin in mastic tube. (any) just get in crack best you can.

Then pva and fill with multi finish plaster and sponge back bellow existing wall surface.
When set cut some fibre fuse (what I use now) or mesh tape to about 20mm wide and set just below surface and plaster fill level with wall.
Sand when dry.

You can use bonding, plaster or toupret filler. Whatever you fancy but you get the idea. Some use sand and cement to back fill to match if that's what you have in property walls..



If it was worse I'd recommend metal lathe (mesh) over crack but you need to get plaster right off, 250mm either side and fix on with epoxy resin. It's 2 pack bought in a tin and you mix and bang on. Not nice to use but this epoxy resins dry harder than steel. Just get on best you can but I don't think it's that bad. Very common that sort of cracks but I do like to fill right back vs just the surface filling

 

[^woody^]

It's a normal and common shrinkage crack. It's not a problem , but even if you fill it it will likely crack again slightly. That's ok if papering, but if painting you may want to widen it and use some mesh tape across it before filling.

Lots of posts on this here, or search the decorating forum.

 

[KenGMac]

I must agree with "Woody" + "Tony1851"

No external damage.
Ground floor only.
No damage on upper floors.
Reasonably "New" property.
Property [probably] un-heated for some time = condensation ??

Can I ask were these cracks visible BEFORE you removed the wall paper??

Also, do you know if your ground floor is a Concrete slab or suspended timber??

Ken.

 

[^woody^]

I must agree with "Woody" + "Tony1851"

It's optional.

 

[Edwardgriffiths]

Hi everyone, thank you all for your replies, really appreciate the feedback. I'm writing on behalf of my husband and he's getting his cousin friend to come over this evening and going to take a look and make a start of things. I agree with what you said, house is fairly new and cracks shrinking.