Are the external walls clad walls or Brick veneer or other?
Re: wall insulation are you planning to remove internal linings (plasterboard/panels) or external cladding ie: weatherboards.
The two reflective foil products you refer to will have identical/ similar results and thermal performance both are installed the same. You mentioned glareshield this is the antiglare finish provided on the surface of oneside of the foil This is generally used to wrap the outside of the frame work.
However, as mentioned it comes back to how you intend to finish the walls, the orientation of the walls (sun exposed ie west / north facing) and your climate zone.
I have seen first hand clad walls insulated with bulk fibrous batts (R1.5,R2.0 and R2.5) all available in 90mm to fit typical stud frameing inclusive of a sarking foil wall wrap fail because the wall faces west or north and exposed to massive summer radiant heat gain only to heat up and conduct heat through to the internal wall linings creating a hot room in summer.
Care is needed when selecting clad wall insulation materials at it can backfire. Depending on climate zone, house design and style of construction you may wish to vary the type of insulation materials. You can also combine other insualtion product types to provide addition acoustic(noise) insulation if required.
Posted Saturday 4 Dec 2010 @ 12:54:01 am from IP
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