SOLID
Not breathable, Repels water in liquid form, Repels water in vapor form
PERFORATED
Breathable, Allows water vapor to pass through, Repels water in liquid form
Radiant Barrier Insulation is a reflective foil which is made from 1 outer layers of pure aluminum foil and 1 layer woven polyethylene fabric. These layers are bonded together with PE. It can also be made of aluminum foil on both sides.
It is primarily installed in attic systems to reflect 97% radiant heat.Your home will be more energy efficient and comfortable.
Reflects 97% radiant heat
Non-toxic and non-carcinogenic
No mold and rot issues
Easy to handle and install
Not breathable, Repels water in liquid form, Repels water in vapor form
Breathable, Allows water vapor to pass through, Repels water in liquid form
alum foil/adhesive/scrim/kraft
PP film/adhesive/scrim/kraft
MPET/adhesive/scrim/kraft
Radiant barrier insulation is a reflective foil which made by aluminum foil or VMPET foil and woven fabric.Radiant barrier is usually installed in attics.It can reflect heat radiation to take control of the temperature in your home.
There are two main methods of installing radiant barrier: stapling it up to the rafters or laying it on the attic floor.We can use staples to fix the radiation barrier foil horizontally to the bottom of the rafters, starting from the bottom and going up.We can also spread the foil on the attic floor.Seal all seams with aluminum foil tape.
The radiant barrier works by reflecting heat from the foil side, but for it to do its job, it should be an air space between the roofing and the foil. We usually installed with foil-face towards the interior of the building.
Radiant barriers (or called reflective insulation) work by reducing radiant heat gain. It block up to 97% radiant heat transfer from the underside of the roof to the other surfaces in the attic. It reduce energy costs and cooler attics.