SIP's Parpac Insulation System- Installation Process
> SIP's Parpac Insulation system is very similar to that of the air tight system however in place of the air tight membrane we use a builder's film or hessian material.
> SIP's team start by fitting the builder's film or hessian material to all surfaces i.e timber framed walls, ceiling joists and sloping rafters.
> A small hole is penetrated in the hessian and cellulose fibre insulation is turbo filled to a density of >60kgm3. Each section is pumped and longer sections are pumped twice or three times until all areas are densely compacted.
> All work can be easily inspected as the hessian is translucent. Injection holes are taped over and the building is cleaned.
> This is the perfect system for those people who are not aiming for a completely sealed external envelope but would rather achieve a very high level of air tightness with Cosycell cellulose fibre.
> On average the parpac system works out 20% cheaper than the Air tight system as you do not face the added costs of expensive air tight membranes and tapes (i.e Siga, Intello or Isover products)