Old Cottage, Perth

The cottage

Before the Dehydration

This 100+ year old cottage had dampness problems for years and it felt very cold. The building didn't have a damp proof course (DPC) and the presence of rising damp was suspected.

Upon investigation in many places the plaster has been found soft and sandy, the effect of long term water damage.

no damp proof course

No damp proof course

Soft plaster

Soft plaster as a result of long term dampness

A peek behind the plasterboard

Damp walls behind the plasterboard

Behind the plasterboard

Soft and sandy behind the plasterboard

The dampness is hidden from view by the plasterboard, however the walls are damp behind the plasterboard.

The wall scan measurments have also confirmed that the cottage has rising damp.

Dampness in a wall section

Dampness distribution inside a cottage wall

The Aquapol masonry dehydration system has been installed in the boiler room and it started dehydrating the property right away.

 taken by the engineer

Moisture measurements

The boiler room

The customer

The Aquapol System - Results

The first set of follow-up moisture measurements has been taken approx. 6 months after the installation date, in February 2015. The dehydration chart is shown below:

Dampness values before and after

It can be seen from the chart that the moisture levels at measurement points M1, M3 and M4 have decreased significantly.

At M2 the moisture levels have increased in the upper area of the wall, which indicates some sort of leak from above, potentially from roof area. The customer is going to have that checked by a roofer in the near future.

The dehydration of the building continues in the meantime, more results will be posted when they will become available.