Radiant Barriers for Bay Area Homeowners
Signs That You Need A Radiant Barrier
- Increasingly high utility bills
- Rising temperature in interior rooms
- Unbearably hot attic
- Overworked AC in summer, reducing its lifespan
- Furnace running long during winters
How Radiant Barriers Work
- Reflectivity: Radiant barriers are made of a reflective material, usually aluminum foil, applied to one or both sides of various substrates like kraft paper, plastic films, cardboard, oriented strand board, and air infiltration barriers.
- Thermal Radiation: They reflect radiant heat rather than absorbing it. When installed in the attic, for example, they reflect the heat from the sun away from the house in summer , helping to keep it cooler.
- Emissivity: They have a low emissivity rating, which means they emit very little radiant energy from their surfaces.
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