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Damp causes and prevention survey


The Normal levels of damp –

Plaster – .2-1%

LIghweight concrete – >5%

Timber 10 – 20%

Test for Damp:   By sight, smell, possibly taste, touch and sound.  A calibrated damp meter should be used as follows:  Electrical Capacitance as a guide to damp below the surface and when located by electrical resistance as a guide to damp on and just below the surface. 

Pictures below show spatter caused damp, a dripping overflow pipe has caused substantial damage to this property, rising damp, penetrating damp etc

Party Wall Surveyor serving Thanet and London

Third Surveyor serving England and Wales

Bruce Spenser MSc LCGI
Bruce Spenser MSc LCGI