via Construction Specifier:
Reflecting on Heat Transfer Reduction
by Mario Medina, PhD
Most forms of building insulation—fiberglass, mineral fibers, cellulose, and cellular plastic—play a key role in making buildings energy-efficient and in reducing electrical peak demand. However, the amount of material that can be added to building walls or roof-ceiling assemblies is limited either by physical dimensions of the framing (ceiling frames) or adverse effects of over-insulating (weight, heat and moisture retention, and ventilation restrictions). Radiant barriers and interior radiation control coatings (IRCCs) offer another option.