noun
thermal insulation; heat shielding
Technical term for blocking or reducing heat transfer, used in construction, automotive, and materials contexts.
遮熱塗料を屋根に塗ると、夏の室温上昇を抑えられます。
Applying heat-shielding paint to the roof can suppress indoor temperature rise in summer.
このカーテンは遮熱効果が高いので、エアコンの効率が上がります。
These curtains have high thermal insulation performance, so they improve air conditioning efficiency.