On Aug 19, 8:33*am, Jim K wrote:
On 18 Aug, 22:36, Tabby wrote:



SPAB is criticised here by those that havent read what they say &
taken the time to understand it. However they do know their stuff on
this topic. It turns out the way old houses handle dampness is a fair
bit different to what people thought a couple of decades ago, and to
some degree some of the same principles apply to more modern builds
too.

interesting - gorra link?

Jim K

Just read any SPAB damp related pamphlets for basic info. If you want
it explained more, check out the periodpropertyuk forum. Its not a
trivial subject though.

There are plenty of people making common wrong assumptions, a classic
one being that damp moves from the outside of a house inward, and thus
coating the outside helps. In fact overall vapour movement is from
inside to out, and coating the outside increases water content in
walls by blocking evaporation. There are several common misperceptions
on this topic.


NT