Damp Proofing and Damp Treatments - Condensation, rising damp, lateral damp, rainwater penetration

Woodboring Insects | Fungal Decay | Damp Proofing

DAMP PROOFING

Below are some of the types of damp - their symptoms, causes and how BWT can remedy some of the problems or advise on other appropriate solutions.

Picture	Symptoms	Causes	Remedy
Rising Damp	Stained decoration Rusting to skirting nails Decay to skirting (see timber decay) Breakdown of plasterwork.	Lack of DPC Ground above existing DPC Blocked gully Debris in cavity	BWT to install a chemical damp proof course and attend to external defects.
Lateral Damp	Ingress of water Damp staining Salt crystallisation Plaster breakdown Timber decay	High ground levels (basement / cellars) High adjoining property Failure / absence of waterproofing system.	BWT to install either cementitious or high density studded membrane system.
Rainwater Penetration	Water Ingress Defective Plaster Timber Decay	External defects such as: Guttering, proofing, pointing, rendering, overflows etc.	External defects to be corrected.
Condensation	Mould growth Timber decay Water staining Water on windows / walls	Lack of ventilation Temperature fluctuations Poor air circulation Excess moisture vapour Bottled gas appliances	Ventilation to be improved. Reasonably even temperature to be provided throughout the property. Read our recommendations for dealing with condensation.

Woodboring Insects | Fungal Decay | Damp Proofing

BWT South East Ltd
172 Old Shoreham Road Hove Brighton East Sussex BN3 7AP
Tel: 01273 737312 Fax: 01273 731316
www.bwtse.co.uk | bwtbrighton@fsmail.net