Ghosting & damp

On the stonework it is salts coming out, efflorescence.

 

No. Its not damp. Just salts in the sand that was used to make the cement. Thats very normal to see.

 

Ring K Rend technical. They would be best placed to explain what's up.

To me, is it possible the mortar bedding the block is a much darker colour to the render and the colour difference is bleeding through?

Or, most more probably, an insufficient thickness of K Rend has been applied allowing the mortar colour to bleed through.

 

The top picture is probably down to the guttering not quite reaching the end of the roof.

Second picture just above the window heads there are two weep holes, which are very far apart either side of the window. I would have expected at least one in the middle.

Third picture, I would query why the outside of the upper floor right hand window reveal has been re-cemented. It is a much lighter colour than the ground floor ones. The staining on the wall may also be because the pointing has been patched up with new cement.




Where the two windows join the sealer between both window cill has gone and they look out of level.



Last picture bottom right hand corner the window cill has been damaged - pig of a job to fix neatly.

The window cills are cheap cement products and have no real strength. I would try and knock a considerable bit of money off and have them replaced with real stone. Or repaired, painted and sealed. Don't consider sealing the stonework as this will cause more problems

 

At the moment unlikely, most is cosmetic. Although you do get the guttering fixed in the top picture as this will be affecting the property next door - which you would be liable for eventually.

I would enquire why the upstairs window required repointing as that is quite unusual.

 

This one



Moisture is collecting around that area, you can see that the joint has been washed clean and water has cleaned up the stone below. So most of it is flowing away. you would have to put a meter on the wall on the inside to test for any ingress - but I doubt it as any water would go soak into the cavity and then run down the cavity.

What could be happening is that the white stains above the lintel, circled in blue is evidence of water running down the cavity and finding its way out there.


This what these are for in this picture - so any water can exit through these min vents. There aren't any of these installed in the picture above.

 

Wouldn't surprise me if weep vents have been rendered over, if fitted.

 

The ones in the picture above look like they have had a fair old coat of paint or latex finish as well

 

Quite a few on Amazon, one of the cheaper ones will give you an idea if it is damp - so is it your property and trying to get something fixed or one looking to buy ?

 

No problem,

One of the things I recommend is the Unibond Aero 360, it is passive air moisture reducer which works well for allergy and asthma suffers. The attraction is that you can see any moisture. My wife is Asthmatic and this is what we use in the bedroom and in cupboards where we store bed linne

If you are allowed to decorate there are anti microbial paint which block bacteria and of course electrical hepa air filters which you can again fit in the bedrooms and run silently.

Our household cleaner has a HEPA filter which we run not only use on the carpets but also on the bed. Once done we follow this up with a UV cleaner to remove the potential of any dust mites.

 

So you are relying on a DIY forum for your families safety?

Employ an expert or walk away, you need somebody to actually walk the line here not look at a few dodgy pics to make this call if that is your worry.