can you identify what is causing this to my blockwork

Joined
13 Nov 2011
Messages
8
Reaction score
0
Location
Bedfordshire
Country
United Kingdom
Hi, just got a semi-detached 1950ish with outbuilding. The north wall is almost all covered in this yellow-greenish stuff. it feels like powder when i run my finger and comes off without much effort.
Bear in min the photos are very close up. the reddish band on one of the pictures is actually the 10 mm standard mortar joint.
any advise is more than welcome.


 
Sponsored Links
Sponsored Links
North walls are invariably shaded, and promote algae and lichen growth
 
Late update on this. Few years back and few years from post, took on this with the jet washer. All came down and is yet to grow back.
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Back
Top