Outsulation on a concrete roof, IRMA
Outsulation on a concrete roof IRMA (Insulated Roof Membrane Assembly) that protects the waterproof membrane.
A Collaroy (NSW) customer complained about excessive heat in summer and cold and condensation in winter, inside the home.
These problems have been overcome by installing DCT XPS GA300 50mm & Proctor Geo IRMA on the concrete roof.
Since installation of DCTech’s outsulation solution the customer has been taking daily measurements of the temperatures inside the home, and has recorded a 6 degree drop in inside temperature (in summer).
Insulation over the waterproof membrane protects the membrane from harsh UV that breaks down membranes. DCT XPS also protects the membrane from temperature fluctuations and foot traffic on the roof.
Now the concrete roof is insulated the dew point is outside the building thus reducing condensation risk and mould.
Products & Application
Insulation: DCT XPS GA 300 50mm
Membrane: ProctorGeo IRMA
Sector: Apartment, Residential
Installer: Leyland Brothers Waterproofing
DCT XPS GA 300
DCT XPS GA 300 extruded polystyrene (XPS) general application board provides excellent performance in roofs, walls and floors in both commercial and residential applications. The boards are rot proof, stable, durable and will have a life equivalent to that of the structure in which they are incorporated.
About ProctorGeo IRMA
ProctorWrap
CW is a triple layer polyolefin non-woven textile weather barrier that is calendared together. This product is also available with pre-applied integrated tape release liners (CW-IT). This product meets the requirements of the AS/NZS 4200.1 and is suitable for use in Australian residential and commercial applications.
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