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Internal vertical DPM’s used in existing buildings to keep out damp; ventilate behind or not?

08 Dec 10 by

Using some form of vertical barrier to hide damp has been around for a long time.  Many walls in old schools and churches still retain the dado rails and match boarded linings at their base. Recently, dimpled profile membranes, made by Newton, Delta, Oldroyd and Platon have really expanded into this market. The method involves […]

Filed Under: Condensation, Damp, Materials Tagged With: ,

Tanking: I miss you so much…..

06 Dec 10 by

Ever had your cellar tanked? How about your basement? Wine cellar?…..garage? I used to do ‘tanking’ years ago, all over Yorkshire.  Now of course I ‘do’ basement waterproofing of type A or C. I enjoyed tanking; doing it and reading about it and talking about it too. From Hebden Bridge to Barnsley; Leeds to Harrogate…and […]

Filed Under: Materials, Surveying, Waterproofing Tagged With: , ,

Electrical Moisture meters in building surveys; unnecessary? or Essential?

05 Dec 10 by

Every surveyor I’ve ever met owns an electrical moisture meter. It makes me think; what did surveyors do before these arrived? The short answer is that they used their eyes. Were their survey reports wrong as a result?  I doubt it. So what is the point of these expensive and maligned gadgets? To answer this […]

Filed Under: Damp, Surveying Tagged With: , , ,

Lime mortar – leave it ’till spring

02 Dec 10 by

Lime mortar is back in a big way. This past year we’ve used natural coloured Eco mortar, fat lime, Lithomex plastic stone repair and hydraulic lime from NHL 5 down to NHL 1.5. My guy’s have re-built unstable walls, re-pointed and re-rendered with it – it is wonderful stuff. Sales are up year on year […]

Filed Under: Materials, Surveying Tagged With: ,

The imaginary world of the Rising Damp myth mongers and why they can never accept the truth….

27 Nov 10 by

‘Rising damp’ used to be free of contention; it was there or it wasn’t.  Nowadays there are some who say it is never there…..and it never was there. How can this have happened?  Were all those who thought it existed wrong? Are those who say that Rising damp “is as rare as rocking horse shit”, […]

Filed Under: Rising Damp, Surveying Tagged With:
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Copyright © 2010 Preservation Expert. Legal Stuff: All the advice and information in the posts on my blog is made in good faith and is based on my experience and knowledge at the time of writing. However, nobody is infallible and whilst I’m confident that most of what I write about preservation issues is accurate, there’s a good chance there’ll be an error or two somewhere. I do change my mind about stuff, as I gain more experience. In view of this you must make your own decisions on whether to follow any advice I write and think about this; I could be wrong. No responsibility will be accepted by the author for any losses anyone may suffer as a result of any mistake or for the consequence of any action you take as a result of reading this blog. If you do suffer a loss, resulting from anything I’ve written, a verbal heartfelt apology will be your only compensation.