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.

Thermos excellent insulator

 

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.

Canadian Radiant Barrier Reflective insulation foil

 

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