The dehydration system needs to be professionally installed by one of our trained engineers. The typical installation time for a residential home is about half a day (3-4 hours). For larger buildings (e.g. commercial buildings, country houses etc.) can take longer but it's typically done within the same a day.
The following actions are performed during a typical installation:
1. Replastering Old Walls
Let's say we have an old wall, also subject to the effects of rising damp: some crumbling and some salts crystallization on the surface (efflorescence). Here are some renovation options:
1. Creating a Floor Plan
We draw or ask for a floor plan of the building. Some of our key data of what we be added onto the floor plan to give you a better understanding of the situation.
2. Field Measurements
Field measurements are undertaken as part of the installation to ensure the optimum operation of the system.
The final location of the device is selected to keep the unit both functional and hidden from view as much as possible. They can be easily hidden from view in closets, cupboards or basements and they start to dry out the building immediately.
4. Wall Core Moisture Measurements
The moisture content of the walls is closely monitored throughout the dehydration process using the gravimetric method, which is the most accurate measurement method.
Masonry moisture content is determined from drilled powder samples taken from the core of the wall using a precision scale and drying oven. Each wall sample is first weighted (wet weight), dried in the oven, then weighted again (dry weight). Moisture content is calculated from the difference between the wet and the dry weights
5. Additional Measurements
Salts measurements are of primary importance as it can significantly affect the dehydration period of the building and determines the renovation measures to be undertaken after the dehydration of the building fabric.
After the installation of the system(s) all collected information goes into a folder called “The building pack”. We send you by mail a copy of all relevant documents including floor plans, measurement values and checklists.
Long-term Monitoring of Dehydration
Following the installation of the system the monitoring phase begins. This can typically last 1-3 years, depending on how long it will take the building to dry out, which depends on a number of a parameters including:
- The initial moisture content of the walls
- Salts content of the building fabric
- Environmental conditions (temperature, relative humidity, heating, ventilation etc.)
- Thickness of walls
- Other hidden problems than can interfere with the dehydration (e.g. leaks, water ingress)
- Size or type of the dehydration unit applied
Unlike damp proofing companies, we monitor the dehydration of the building until it dries out. During this time we be back several times, take additional professional moisture readings and advise you about the progress.
This monitoring service which is included in the price has the following benefits:
- Peace of mind: you can be certain that the rising damp problem is sorted in your building for real, not just temporarily.
- Finding & advising about other (hidden) issues: during our follow-up measurements we often find additional (hidden and longstanding) problems with the building, which we will analyze, quantify and let you know about how to best address or overcome it. Leaks, water ingress, chimney problems are common such problems which can be difficult to pinpoint, we often find them and advise you about how to deal with them.
- Renovation advice: once the building becomes dry we can can advise you about the various renovation options so you can choose the one that best fits your taste, budget and time frame. We go over with you the pros and cons of each option so you can make an informed decision and prevent costly renovation mistakes.