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damp problems
 More often than not, many people confuse themselves when it comes to problems relating to damp as Condensation can quite often be the main cause. Here you can use the check list opposite to help determine for yourself whether or not your problems are related to rising damp, water ingress or simply condensation.
Decayed skirting's, damp base of wall, damp around edge of solid floor
1. Rising dampness
2. Rising dampness + defect in floor/wall junction
3. Faulty edge to DPM of floor
4. High ground level/failed tanking
Surface efflorescence just above skirting/floor
1. Gypsum finishing in direct contact with damp solid floor or damp masonry at base of wall
2. Gypsum finish/porous plasterwork taken below timber
suspended floor and sub-floor and condensation at floor/wall junction Dampness at base of wall up to 1.5m* in horizontal band
1. Rising dampness
2. Low level rain penetration (splash-back)
Stains, especially in horizontal band, noticeably damp in humid conditions.
1. Heavy contamination with hygroscopic salts
Damp patches on surface increasing in size during/following rain; sometimes heavy Efflorescence
1. Rainwater penetration; external defect usually obvious
Stains/damp/efflorescence on chimney breast
1. Contaminated plasterwork from combustion products
2. Condensation in flue
3. Water running down chimney flue
Mould growth on cold surfaces, window reveals, ceiling/wall junction, etc
1. Condensation
Free surface water, water run marks, water droplets, dripping water
1. Condensation
2. Severe rainwater penetration
3. Severe plumbing leak
Damp timber floorboards around edge of floor but not in centre
1. Sub-floor condensation at floor/wall junction
2. Floorboards in direct contact with damp masonry
Floorboards damp away from wall
1. Sub-floor condensation

Damp at first floor level and above

1. Condensation
2. Rainwater penetration
3. Plumbing defects

*May rise higher depending on conditions
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