A new self-build house in County Monaghan, Ireland, has been built incorporating the high-performing Wraptite air-barrier from the A. Proctor Group. The project, designed by McGuigan Architects, Monaghan, consists of a 250m2 detached private residence developed by Mark Skinnader.
The house design is a load-bearing Lightweight Steel Frame Construction. The steel frame system’s exterior finish is formed of a 12mm Y-Wall Sheathing Board, the Wraptite Airtight Breather Membrane, and a 150mm Sto EPS Insulated Render System.
The U-Value and condensation risk calculations carried out by the A. Proctor Group on the proposed through wall build-up confirmed no risk of condensation. Because the house is a self-build project and the external finish was not critical to the overall programme, the membrane provided both a damage resistant air barrier layer and effective secondary weather protection in one installation process, to allow internal trades to proceed earlier. In addition, the self-adhesive application of Wraptite enables it to be left exposed for up to 120 days during construction.
The Wraptite system is the only self-adhering vapour permeable air barrier certified by the BBA. It combines the critical properties of vapour permeability and airtightness in one self-adhering membrane. As a result, it provides high vapour permeability in a continuously sealed, airtight membrane, saving time and cost.
The high vapour permeability of the Wraptite air barrier allows the substrate beneath to dry quickly and moisture vapour to escape and reduces the likelihood of mould, mildew, condensation, timber distortion and metal corrosion.