Rising & Penetrating Dampness

Rising & Penetrating Damp treatment

What is rising damp?

The morjority of building materials which are used for walls are porus which will absorb water if in contact. Even against gravity water can rise up the small holes called pores or capilaries within the wall structure from the wet ground below, creating rising damp, this process will carry soluable ground salts (chlorides & nitrates) from the ground up into the wall and contaminating the wall plaster, if present.

Old buildings were built with little or no protection against rising damp, as knowledge has progressed a poured bitumen or bitumous felt and even slate layers were used as a form of damp proof prevention measures, however over time these materials break down and become brittle allowing dampnes to breach these materials.

Treating rising damp

There are several methods in treating rising damp problems and Protreat will provide the most suitable solution for the property and the customers needs.


Suitable Treatments

New chemical damp proof courses such as quartz injection mortors, siliconate water proof gels and creams, removal of contaminated plaster coats and re-plastering using specialist lime based renovation plasters or an instalation of slimline plaster direct high density cavity drain membranes.

Penetrating Damp

This can be caused by external defects such as defective roof coverings, leaking rainwater goods, poor pointing, higher external or adjoining ground floor levels.

It is important to resolve these defects as any timbers in contact with such dampness are vulnerable to fungal decay such as Wet or Dry rot attacks.

Higher ground levels can be treated internally with various types of tanking solutions and also in conjunction with damp proofing works if required.