One important factor of energy loss and an increasing amount of Carbon dioxide (CO2) emission is the uncontrolled air leakage from buildings. To create a healthy, comfortable, and an energy efficient environment, airtightness is one of the most important factors.
Role of Airtightness Membranes in Modern Buildings
Approximately 42% of the energy utilized in the UK is used for different services for buildings. Out of this, 60% is being used for cooling and heating water and air/space.
Previously, most of the heat loss through the fabric of building envelope was due to the lower level of airtightness, and very little or no insulation at all.
One of the best ways to reduce electricity bills, increase energy efficiency in homes and other buildings, and ensuring that the insulation is installed properly and working effectively, is to use a quality insulation and making the structure as tight as possible.
Importance of Airtightness in Building a Sustainable Home
Indoor air quality is important, but it is also important to consider that how the moist that we produce is affecting the building structure of our homes.
During winter, when moist air is leaked into the cold building fabric and condenses, it causes the metal to corrode and timer to rot. It also encourages the growth of mould.
As we make our buildings more insulated, the outer layers of buildings become colder, and the buildings become more prone to the effect of condensation (by condensing air leaking from inside the building).
Therefore, it is necessary that good insulation, high-quality airtightness, and a good ventilating system go hand in hand to make your buildings energy sustainable homes.
How to Make a Building Airtight?
Serious consideration and lot of planning are required to make a building airtight. Each section of the building needs to be airtight. If timber frame is used in buildings, you need to tap an airtight membrane before the next panel of the wall goes up.
In case of masonry, you need to make sure that mortar joints are filled well, and all penetrations to the masonry are sealed properly. Making buildings airtight is an effective way to make buildings energy efficient.
Gerband Sd Vario Membrane
Gerband Sd Vario Membrane prevents condensation that facilitates mildew growth and constructional damages.
PHS Sd Variable Membrane
Multi-layered vapour barrier with a moisture-variable sd value. It is used indoors according to DIN 4108.