| Radiant barriers are installed or applied in houses | | | | the ones described below. |
| to reduce the summer heat gain and reduce the | | | | Foil radiant barrier is the most popular and useful |
| winter heat loss. Radiant barriers help in reducing | | | | form of radiant barrier insulation. It is made of |
| building heat and cooling energy usage. The radiant | | | | aluminum and requires air space to be effective. |
| barriers are made up of reflective materials that | | | | The radiant barrier aluminum is applied to one or |
| reflect off radiant heat rather than absorbing it. | | | | both sides of a number of foil substrate materials. |
| They are designed to block the effects of | | | | The substrate material may include kraft paper, |
| in-house radiant heat gain by reflecting the radiant | | | | plastic films, cardboards, oriented strand boards, |
| heat back to the direction of its source. Radiant | | | | air infiltration material among others. |
| barriers come in many forms including some of | | | | |