DA is an internal airtight membrane that is also robust enough to function as a weathertight air barrier that can be exposed externally for up to 3 months during the construction phase. It is suitable for use on timber frame and CLT roofs, walls and ceilings and can be used as a robust airtight seal in a suspended timber floor refurbishment.
Pro Clima DA is an internal airtight vapour control (vapour resistant) membrane. It is highly robust and can withstand UV and weather exposure for up to 3 months.
On timber frame or CLT buildings with external insulation, DA is very suitable. It can be installed directly to the timber frame or CLT making the construction airtight and (temporarily) weatherproof early in the project. Even though DA is an internal membrane, it can be used to provide external protection for up to 3 months prior to the insulation and permanent windtight membrane being installed over the top.
When insulating a suspended timber floor, DA provides excellent strength and durability essential for when floorboards are laid over the top.
Pro Clima DA can be used on newbuild timber frame or CLT roofs, walls and ceilings where the airtight membrane will be exposed to weather/UV during construction prior to external insulation and permanent weatherproofing being installed.
It can also be used on suspended timber floors as a robust internal air barrier (airtight membrane).
DA is a perfect solution for early-stage airtightness. For example, placing a section of it on a roof joist before rafters are installed over it so another airtight membrane can be taped to it in the future. This ensures a continuous membrane over the joist and accessible edges that are easy to tape.