Airtight membranes and tapes

Airtight Membranes:

Airtight membranes, commonly found in the construction of external wall and roof structures, serve a dual role essential to the integrity and energy efficiency of a building. Positioned on the inner side of the insulation, these membranes play a crucial part in maintaining the overall stability of a structure. Firstly, they act as moisture barriers and control the movement of moisture from within the building, also neglecting potential issues like condensation, which can be brought by humid and warm indoor air during the winter months. Secondly, these membranes function as airtight layers, sealing the internal envelope of a building to prevent unwanted air infiltration and heat loss. In the building industry, they are often referred to as vapour control layers due to their pivotal role in safeguarding timber structures and enhancing the energy efficiency of a building.

Airtight Tapes:

Airtightness tapes also known as window seal tape or airtight tape for windows, are extremely useful in achieving airtightness in a building or house. These tapes have proven their worth over the years as they have extensive use in sealing gaps and joints, such as bonding overlaps in airtight membranes, and creating airtight seals around windows. Airtight window tapes, in particular, have emerged as the preferred choice for effectively sealing the perimeter of windows, preventing unwanted air infiltration. These tapes have now become the go-to option for both commercial buildings and homeowners seeking to fortify their building's airtight detailing, ensuring a more comfortable and energy-efficient living environment.

Working of Vapour Control Layer

A vapour control layer is a two-layer membrane, consisting of an upper functional foil film made of PA (polyamide), a unique plastic that responds to changes in humidity and temperature differentials between the exterior and interior environments. This PA film maintains airtightness and its micropores can dynamically adjust, expanding or contracting, to permit the passage of water vapour molecules, which are significantly smaller than air molecules. This adaptive behaviour ensures that in summer, when relative humidity is higher, the membrane becomes more vapour-permeable (Sd0.2) and acts as a breather membrane. Conversely, in winter, with lower humidity, the functional PA foil becomes more vapour-tight (Sd20), maintaining airtightness and moisture control. This vapour control membrane is instrumental in managing the building's indoor environment. Various additional products are used in the process of membrane installation such as membrane adhesive, aluminium form gun, connection tapes, etc. These items facilitate and streamline the installation process. We are partnered with the worldwide known German brand ‘Synwer’ in sourcing the products and offer a wide selection including roofing membranes, vapour barriers, adhesive technology, window sealing tapes and accessories. To make the building airtight contact EcoAer, we are the industry experts on which you can rely.