How does Insulation Work?

Heat flows naturally from a warmer to a cooler space. In winter, the heat moves directly from all heated living spaces to the outdoors and to adjacent unheated attics, garages, and basements – wherever there is a difference in temperature. During the summer, heat moves from outdoors to the house interior. To maintain comfort, the heat lost in winter must be replaced by your heating system and the heat gained in summer must be removed by your air conditioner. Insulating ceilings, walls, and floors decreases the heating or cooling needed by providing an effective resistance to the flow of heat.

Batts, blankets, loose fill, and low-density foams all work by limiting air movement. (These products may be more familiarly called glasswool, cellulose and polystyrene.) The still air is an effective insulator because it eliminates convection and has low conduction.

Reflective insulation works by reducing the amount of energy that travels in the form of radiation. Some forms of reflective insulation also divide a space up into small regions to reduce air movement, or convection, but not to the same extent as batts, blankets, loose-fill, and foam.

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 Roof Insulation Existing wall insulation Insulfluf / insulation removal Window insulation Ventilation Underfloor insulation Ground vapour barrier New Build Rental Property

Who we are About insultech insulation

With 20 years experience in insulation and heating products, your choices couldn’t be simpler!

We are NZ wide and can help you select the most suitable, cost effective heating and insulation system to suit your needs and assure a comfortable home – forever! We specialise in residential insulation – roof insulation, floor insulation and existing wall insulation. New Build housing and fixing existing homes.

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Making all your insulation needs affordable.