Stone Terraced House, Tranent

The stone house

Before the Dehydration

Stone mid-terraced house from the turn of the century. Tranent used to be an important mining town well known for its coal. This house used to be former miners' dwelling.

The owner of the house was complaining about how cold the house felt in general. The house had chemical damp proofing put in several years ago, however the wet spots re-appeared.

Analyzing the affected bedroom walls with a deep scanning wall scanner revealed higher moisture readings towards the base of the house. Wall samples taken from the depth of the wall have shown the moisture content, confirming that the walls were indeed damp.

wall stains

Wall stains

wall moisture map

Wall moisture map

The thermal insulation of wet walls is really poor in comparison to dry walls. The wall capillaries normally contain air, which is a very good insulator. Because of  rising damp these capillaries will be gradually filled up with cold water which draws heat away from the rooms. 

As a result the heating expenses of the building can increase significantly.

aquapol installed

Aquapol system installed in walk-in closet

aquapol customer

The customer with the Aquapol system

The Aquapol wall dehydration system has been installed at the beginning of July 2014 and the dehydration of the house is currently under way.

The Aquapol System - Results

The first set of follow-up moisture measurements have been taken 6 months later, in January 2015. The measurments that the house is drying out nicely.

Please see below the dehydration chart with the moisture values before and after:

Moisture chart

Here is a visual comparison of a damp wall section, before and after:

Before Aquapol

After 6 months

The dehydration still continues.