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

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 […]

Tanking: I miss you so much…..

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 […]

Lime mortar – leave it ’till spring

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 […]

Capillary active waterproofing? (for concrete).

Concrete is not generally waterproof.  Pores and cracks within will let water through and the age old problem is how to stop it. Most methods involve sticking a layer of something other than concrete on one side of the slab/wall or another.  Usually these are bitumen based, with little affinity for damp concrete.  Applying them […]

Type A waterproofing to BS8102 – here’s how.

Well, before any waterproofing is done, there’s obviously a design stage, so strictly speaking I’ve jumped the gun here – going directly to the business of actually waterproofing the building. As with all materials used for type A waterproofing, the preparation is key to success.  Skimp on the prep’ and the project will fail.  This […]

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