Foil Insulation SF19
Types of heatloss
Conductive Heat Loss: Direct contact/touch. If you touch a hot saucepan
(which we do not advise) this would feel hot to the touch, this is 'conductive
heat transfer'.
Convective Heat Loss: This is in the form of steam or moisture. For example:
if you were to put your hand over a boiling kettle, you would feel heat in the form
of steam. This is termed 'convective heat transfer'.
Radiant Heat Loss: Electromagnetic. When the sun is shining you feel the
sun's rays on your face. This is 'radiant heat transfer'.
Everything above absolute zero emits infrared rays in straight lines, in all directions.
A radiant barrier such as our foil insulation reflects radiant heat energy instead
of trying to absorb it.
During winter, 50-75% of heat loss through the ceiling and
roof and 65-80% of heat loss through walls is radiant.
During summer, up to 93% of
heat gain is radiant.
Traditional forms of insulation are virtually invisible to
radiant energy and are affected by changes in humidity (moisture levels). A 1.5%
change in the moisture content of fiberglass insulation will result in a 36% decrease
in performance. Our multi foil insulation radiant barrier is unaffected by humidity
and continues to perform consistently.
Technical Documents
