Kingspan Timber Solutions is committed to the future of airtightness, and has built a timber frame constructed show home in Cambridgeshire to achieve CHS Level 5. In many constructions, about half of all heat loss is due to air leakage through the building. Given that approximately half of all energy used in the UK is from buildings, it is easy to see that air leakage, or draughts, account for a considerable amount of energy - and therefore cost. The target was to reach Code for Sustainable Homes level 5, with an air tightness result of 1. Attention to detail and workmanship, followed by a rigorous testing process ensures that what is designed is built, and what is built performs as it was designed. This is achieved primarily through a fabric first approach.
Wraptite-SA was used as the airtight solution as it combines important properties of vapour permeability and airtightness in one self-adhering membrane. Penetrations through the structure such as pipes, ducts and electrical work also need to be sealed to stop air leakage from a structure. Wraptite Tape is tear resistant and offers high vapour permeability for internal and external applications - detailing is quick and easy, providing an effective, convenient solution to what can be an expensive problem.
A superb test result of 0.87 m3/m2/hr was achieved, with no remedial work required during the testing.
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For any building to have an energy efficient, healthy, moisture free building envelope there is a clear need to manage the balance of Heat, Air and Moisture movement (HAMM) throughout the building’s life cycle from design, construction, completion and use.