| Client: |
SIPS Industries - Structural Insulated Panels |
| Membrane: |
ProctorWrap HP and Proctor Roofshield |
SIPs (Structural Insulated Panels) have been tried and tested worldwide for more than 40 years. These strong, pre-manufactured, highly insulated and high performance building components are specially engineered to quickly and easily lock together using a unique cassette joint. Cleverly designed to be either transported to site as a completed modular home or built on site means that three and four bedroom homes can be erected to lock up in less than a week. The exceptionally strong, light weight, thermally efficient and air tight nature of SIPs construction makes it ideal for the construction of houses, high-rise apartments, hotels, schools and light industrial / commercial units. Each panel is constructed using outer engineered timber facings and a central foam insulation core. When the panels are locked together they form an air tight barrier, preventing hot or cool air escaping through structural leaks. The integrated use of ProctorWrap HP and Roofshield breathable membrane used on the cold (exterior) side of the SIP component reduces interstitial condensation risk and allows for the safe drainage of any moisture out of the wall, keeping the SIP wall assembly dry. The new era of energy efficient buildings is seeing a higher level of bulk insulation and air tight building practices being implemented to meet increasingly stringent energy-efficiency standards. Failing to incorporate a vapour permeable membrane increases the risk of damaging interstitial condensation occurring within walls and roof spaces. As water vapour within the building naturally passes through the SIP wall assembly, it reaches cold points in the roof and walls. The air’s ability to hold vapour is reduced, therefore increasing the risk of condensation which can cause can timber rot, corrosion of ferrous metals, mould and loss of thermal resistance due to saturation. Breathable membranes do the same job as foil sarking - they restrict the ingress of wind driven rain, snow and dust. But unlike foil sarking, breathable membranes will allow for the controlled escape of vapour from within the building, allowing the building to breathe. The high vapour permeability of ProctorWrap HP and Roofshield breathable membranes helps to protect the SIPs building fabric from condensation for the life of the building. |
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