Rising damp

Some people claim that rising damp doesn’t exist, there has even been a book published called the myth of rising damp. As you will see in the below pictures that is what rising damp looks like.

Rising damp was first mentioned by the Royal Institute of British Architects in 1862.

Rising damp is often mis-diagnosed from salesman trying to flog a damp course of by incompetent builders or even building surveyors. The big question is who do you trust? Do you trust a damp proofing company? A RICS building surveyor? A builder? Ideally all damp diagnosis surveys should follow BRE Digest 245, using this methodology and laboratory analysis you will have factual data determining what the actual dampness is, this will also provide the necessary information on the remedial repairs that will work.

Rising damp can rise higher than most people think.

rising damp, damp proofing trowbridge, damp survey trowbridge wiltshire, damp specialist wiltshire,RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

Rising damp that was caused by a bridging cavity

 RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

 

 

 

 

 

 

The stain above the radiator is a hygroscopic salt band, typical of long term rising damp.

 

RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

 

Another hygroscopic salt band on an internal wall, typical of rising damp.

RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

Active rising damp on an internal wall at low level.

RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

Rising damp and a hygroscopic salt band on the internal side of an external wall.

RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

Hygroscopic salt band on the external side of the wall, typical of long term rising dampness.

rising damp salt band devizes,RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

Don’t get me wrong damp meters are great bits of kit for non destructive surveys, but they will not differentiate between moisture and hygroscopic salts.

As you can see in the picture below the damp meter is showing high readings, this is because the wallpaper has been in contact with hygroscopic salts from long-term rising damp. There is obviously no rising damp, I know this as I oven dried it, and the test is after it was dried!

rising damp, salts on wallpaper,RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

As you can see in this picture the damp meter is showing high readings, this is because the damp meter is in contact with the old lime plaster, again this lime plaster is bone dry, there is no rising damp!

rising damp, damp meter,RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

 

 

 

 

 

 

 

 

 

Don’t be fooled by the speedy-carbide meter, these are marketed by many people claiming to be using expensive equipment, these meters are cheaper than decent damp meters and are for sale second hand on Ebay for £50.00, they will not differentiate on site the difference between free moisture and hygroscopic salts, they will only tell you the total moisture content. This is well documented In BRE Digest 245

What is a speedy-carbide meter

rising damp, SPEEDY METER PICTURE,RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

The Speedy meter-carbide meter is a portable system comprising a vessel with an integral pressure gauge, a weighing scale and a carry case. A small sample of the material is prepared, weighed and placed into the vessel. A reagent is then added and the vessel is sealed and shaken to mix the reagent with the sample. Free moisture within the sample reacts with the reagent to produce a gas and pressure rise within the vessel that is proportional to the amount of moisture. The moisture content value is then read directly form the calibrated pressure gauge.

What is the speedy meter good for?

Testing moisture of a sample, BRE does approve it but this is destructive of the sample taken and if you need to profile – as the BRE says, it takes a long time to do all of them.

Also the speedy meter will only give total moisture content (TMC %), this is made up of hygroscopic moisture content (HMC %) + free moisture content (FMC %).

This basically means if there has been a rising damp problem there will most probably be chlorides and nitrates in the plaster/wall, these are hygroscopic salts from the ground. So when accessing a rising damp problem we need to know how much free moisture is in the wall (FMC, water) and also how much hygroscopic salts are in the wall (HMC, Nitrates & Chlorides), the amount and the distribution.

I will give you an example, you have a reading of 5% on the speedy meter, what is the free moisture (FMC, water)? What is the hygroscopic salts (HMC, Nitrates-Chlorides)?
It’s impossible to tell, because the speedy meter will only tell you the total moisture content! HMC + FMC.

A carbide can be used for hygroscopic testing but only if you double the size of samples and then subject half the sample to the carbide test and half to the 75%RH and weight test. This means the sample must be well mixed and equal – tricky if it is not homogenous and also the longer you leave it about the more weight it loses or gains before it is analysed.

So why is this important

It’s important because for diagnosis of rising damp quantitatively on site, a full profile to BRE Digest 245 is impossible with a speedy meter. Samples need to be left in a desiccator for a minimum of 24hrs to reach equilibrium @ 75% relative humidity to allow the sample to gain wait if there are hygroscopic salts present. This is not possible on site! A full profile will take to drill and sample a day that is why only one sample is normally taken by the so-called damp specialist who markets them as expensive testing equipment…..

The best place for a speedy meter is in the bin!!!

rising damp, speedy meter picture,RISING DAMP TROWBRIDGE, DAMP SURVEY TROWBRIDGE, DAMP EXPERT TROWBRIDGE, DAMP COMPANY TROWBRIDGE, DAMP SPECIALIST TROWBRIDGE, RISING DAMP TROWBRIDGE, DAMP PROOFING FROME, DAMP PROOFING DEVIZES, DAMP PROOFING CHIPPENHAM, DAMP PROOFING, WARMINSTER, DAMP PROOFING WESTBURY, DAMP PROOFING BATH, DAMP PROOFING SHEPTON MALLET, DAMP PROOFING RADSTOCK, DAMP PROOFING TIMSBURY, DAMP PROOFING CORSHAM, DAMP PROOFING KEEVIL, DAMP PROOFING STEEPLE ASHTON, DAMP PROOFING MARLBOROUGH, DAMP PROOFING SWINDON, DAMP PROOFING BRISTOL, DAMP PROOFING SALTFORD, DAMP PROOFING KEYNSHAM, DAMP PROOF AMESBURY, DAMP PROOFING SALISBURY, DAMP PROOFING HUNGERFORD, DAMP PROOFING, DAMP PROOFING BRUTON, DAMP PROOFING PEWSEY, DAMP PROOFING MERE, DAMP PROOFING WINCANTON, DAMPPROOFING SHAFTESBURY, DAMP PROOFING, DAMP PROOFING BRADFORD ON AVON, DAMP PROOFING CORSHAM, DAMP PROOFING UPAVON, DAMP PROOFING EVERCREECH, DAMP PROOFING GILLINGHAM, DAMP PROOFING CHEDDAR, DAMP PROOFING WELLS, DAMP PROOFING CHERHILL, DAMP PROOFING POTTERNE, DAMP PROOFING NETHERAVON, DAMP PROOFING URCHFONT, DAMP PROOFING BATHFORD, DAMP PROOFING BATHEASTON, DAMP PROOFING BECKINGTON, DAMP PROOFING RODE, DAMP PROOFING ROWDE, DAMP PROOFING SOUTHWICK, DAMP PROOFING MARSHFIELD, DAMP PROOFING COLEFORD, DAMP PROOFING CASTLE CARY, DAMP PROOFING MALMESBURY, DAMP PROOFING YEOVIL, DAMP PROOFING SPECIALIST, DAMP PROOFING NUNNEY, DAMP PROOFING CORSLEY, DAMP PROOFING CHAPMANSLADE, DAMP PROOFINGDILTON MARSH, DAMP PROOFING BUCKLAND DINHAM, DAMP PROOFING TIMSBURY, DAMP PROOFING SUTTON VENY, DAMP PROOFING WILTSHIRE, DAMP PROOFING GLOUCESTER, DAMP PROOFING SOMERSET, DAMP PROOFING DORSET, DAMP PROOFING SHERBORNE, BRE DIGEST 245 PICTURES, BRE DIGEST 245 SURVEY, WHAT IS BRE DIGEST 245, DAMP COMPANY, RISING DAMP, DAMP EXPERT , RISING DAMP SURVEY, HYGROSCOPIC SALTS

BRE Digest 245

If your in doubt you should purchase a copy of BRE Digest 245 for £15,I use this document for guidance and is how we carry out our surveys.

This Digest considers the causes of dampness in walls and how to remedy rising damp if found. It is important to diagnose properly the source of any dampness. If a building already has a physical damp-proof course, it is unlikely that it has failed, as most dpc materials have a long life. Various defects, eg mortar droppings in a cavity wall, may make a dpc ineffective by bridging it and allowing moisture to pass up the wall. This and other mechanisms by which an existing dpc might be bridged are illustrated.

Some accumulation of salts can occur in the walls of old buildings even when they do not have a damp problem, so high readings from a moisture meter alone are not conclusive. Appendix A describes how to drill samples from a wall in order to test for moisture content and hygroscopicity. The interpretation of moisture gradient profiles is discussed.

Here is link BRE Digest 245

 

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