Hi all and some top advice please;
Had a 2 storey extension added to the house a couple of years ago and hope to paint the outside walls this summer
Walls have been finished with smooth render coat which now has several hairline cracks due to settlement I assume
Before painting with a stabilising solution and masonary paint, do I repair these cracks as I would with an internal plastered wall,ie. rake out crack to enlarge - remove loose material - fill with external filler ?
When the extension was being built I asked the guys rendering about repairing future cracks and they said they use Ronnerfix mixed with cement powder for repairs
Is this a good method or can you suggest a better method / material to use
Also on rendering - why is the new render so soft compaired to original render on the house
When drilling holes for hanging baskets, lights, etc I've noticed that the drill goes through the new render with no effort at all but the original render is completely different and rock hard
Had area on front of house re-rendered by different builders to extension and again found new render much "softer" than original render
Rendering looks great and is still on wall after 2 1/2 years but just wondered why so soft ?
Thanks for any help with these questions