CPD Specifier May 2015 issue September 2015 | Page 41

Walls Energy saving refurbishment with Remmers IQ Therm System The listed 19th Century former Schoolhouse overlooking the Dublin mountains was renovated and extended to create a new energy efficient residential family home. So that the exterior facade of the existing property was not altered in any way, internal insulation was installed to the interior of the stone walls of the original house. Due to the build up of condensation behind conventional insulation when applied to single leaf construction, it became apparent that a ‘breathable insulation system’ would be required. REMMERS (UK) LTD PT is an all-rounder Capable of waterproofing and damp-proofing internal and external walls and vaulted ceilings, above and below ground, in new construction of existing buildings over a contaminated or damp background Delta-PT is a versatile product that is one of the most popular from the extensive Delta Membrane Systems range. Remmers IQ Therm was chosen as it has the highest level of insulation for given thickness of breathable systems. is approved for use in portable water applications. It also provides an effective barrier to the transmission of salts or other contaminants from the substrate. The original U-value of the wall was approx 3.3W/m2K and was improved to 0.33W/m2K. It is a high performance polyethylene membrane which is extruded into a series of studs which create a continuous air gap behind the waterproof membrane. Remmers IQ Therm is a complete system of fixing/insulation and finishing available in 3 board thicknesses. On the face of the membrane is a welded mesh that allows plasters and renders to bond efficiently to achieve dry and durable finishes. The renovation was followed on RTEs ‘Room to Improve’ house renovation show with Architect Dermot Bannon. Delta-PT is watertight, resistant to high and low temperature extremes, chemically resistant to acids, alkalis, oil and solvents, and TEL: 0845 373 0103 WWW.REMMERS.CO.UK DELTA MEMBRANES It can support the long-term loadings likely to be experienced in service without undue deformation. Temperature resistant in the range -30°C to +80°C, Delta-PT is some 0.5mm thick with stud heights of 8mm. Two roll sizes are available - 2m by 20m, and 1.5m by 10m. Potential drainage rates are in the region of 5 litres per second, per m. TEL: 01992 523523 WWW.DELTAMEMBRANES.COM CONTEMPORARY ACO UMQ%