Radiant barrier is a layer of aluminum foil material placed in an airspace to block heat transfer between a heat-radiating surface (such as a hot roof) and a cooler, heat absorbing surface (such as a home's ceiling).
(Radiant barrier; is; a layer of aluminum foil material) (aluminum foil material; placed; in an airspace to block heat transfer between a heat-radiating surface (such as a hot roof) and a cooler)
Radiant barrier aluminum foil material
is placed
a layer of aluminum foil material
in an airspace to block heat transfer between a heat-radiating surface (such as a hot roof) and a cooler