Do I need to buy insulation with reflective foil?

Do I need to buy insulation with reflective foil?

There are two main types of insulation product:
bulk: which primarily affects conduction heat flow 
reflective foil: which primarily affects radiation heat flow.

Reflective insulation is an extra layer to help reduce heat flow. In many cases, it's not a bad idea to have both.

    • Related Articles

    • What does reflective foil on insulation do?

      Foil insulation is a radiant barrier, and it works by reflecting heat from the foil surface, but for it to do its job, there has to be a layer of air between the roofing and the foil.  Some types of metal roofing are shaped to create this air space, ...
    • How does insulation work?

      Insulation prevents heat loss by slowing down heat loss in winter and heat gains in summer in one (or both) of two ways: • Bulk Insulation (thick layers of dense materials that trap heat inside or outside your home) • Foil Insulation (reflective ...
    • What is the best underfloor insulation?

      • There are two main types of insulation – bulk insulation and reflective foil insulation.  • Extruded or expanded polystyrene insulation boards can be used in underfloor insulation. This type of insulation can also be combined with reflective foil ...
    • What orientation should a foil surface insulation blanket face under a metal roof?

      In most cases, the shiny side should be facing up. Foil insulation is a radiant barrier, and it works by reflecting heat from the metal, but for it to do its job, there must be a layer of air between the roofing and the foil. Some types of metal ...
    • How much insulation do I need?

      This will depend on which climate zone you live in. In each climate zone, the Building Code of Australia has determined a minimum amount of needed insulation expressed in R-value (the efficiency of a material at stopping heat flow through it.) This ...