Thanks for the response!
I assume the original reason for rendering the DPC was mainly cosmetic, although it appears to have offered some protection to the mortar that bonds the slate on the DPC layer. Where the skin has fallen off has allowed the mortar to erode over the years.
Either way you...
Hi!
I’m looking for some definitive advice on re-pointing my house, specifically regarding the slate DPC level please. House is 1920’s cavity wall, brick and lime mortar. DPC is single layer of double course slate.
The lime mortar is solid (not crumbly or soft), but on the rear elevation we...