The Role of Building Codes in Dampness Control
Dampness is a common problem in buildings, and it can lead to a number of health and structural issues. Building codes are designed to help prevent dampness problems by requiring the use of appropriate materials and construction methods. The codes specify what is an acceptable damp reading, and they also provide guidance on how to correct dampness problems.
What is an acceptable damp reading?
The acceptable damp reading will vary depending on the type of building and the climate. However, in general, a damp reading of 15% or less is considered acceptable. Damp readings above 15% indicate that there is a problem that needs to be addressed.
How can building codes help to control dampness?
Building codes can help to control dampness by:
- Requiring the use of moisture-resistant materials in wet areas, such as bathrooms and kitchens.
- Specifying the minimum height of foundations above the ground to prevent water from seeping into the building.
- Requiring the installation of vapor barriers to prevent moisture from rising from the ground into the building.
- Providing guidance on how to ventilate buildings to prevent moisture buildup.
How to correct dampness problems
If you have a dampness problem in your building, there are a number of things you can do to correct it.
- Identify the source of the moisture and eliminate it.
- Increase the ventilation in the building by opening windows and doors, or by installing a ventilation system.
- Install a dehumidifier to remove excess moisture from the air.
- Seal any cracks or gaps in the building's exterior to prevent water from seeping in.
- Repair any leaks in the plumbing or roofing.