Radiant Barrier how it works
History
Aluminum foil has been in use for over 100 years.

Uses
Probably the most common use is for cooking. Aluminum foil has one highly reflective side for directing heat.

Thermos uses shiny surface and air gap for very effective insulating properties.
Reflective Suit for firefighting

Reflective Sun shade for Vehicle

Combining the highly reflective property of shiny aluminum with the addition of an air gap gives remarkable properties and are widely used.
It is also used in spacesuits created with numerous layers of foil to be extremely effective in the extremely wide temperatures in space when moving from sun to shade.
Nasa
Canadian Radiant Barrier For your home.
- Attic
- crawlspace or basement
- walls
- Radiant heat applications
Shiny aluminum radiant barrier has remarkable reflective properties just behind gold and silver wth about 96% reflectivity of radiant heat.
Emissivity is related to reflectivity and is the inverse or about 4% this means that on the cold side little heat is transfered!
Radiant Heat by definition is an invisible form of energy that must be traveling through a void such as space or air. this energy travels at the speed of light until it contacts a cool surface and then will heat up the surface.
Attic - Radiant heat from the sun hits your roof your roofing material gets Hot. this hot surface then produces radiant heat that travels through the airspace in your attic and contacts your insulation. This heat travels through the insulation (insulation slows but has very little reflective properties) and upon heating up your ceiling converts again to radiant heat where it will heat up your floors furniture etc including yourself.
Radiant barrier reflects this back where it came before contacting your insulation allowing a much coooler home in the summer.

To purchase click on Logo to go to my ebay store
To purchase in Nanaimo and area call 250-816-4328
Canadian Radiant Barrier Brochure
Canadian Radiant Barrier 20 year limited warranty

