Core TradesCâu 209 / 700
A radiant barrier installed in an attic reduces summer heat gain PRIMARILY by:
a.Adding mass that absorbs heat
b.Sealing air leaks in the ceiling
c.Increasing the R-value of the wall insulation
d.Reflecting radiant heat away from the conditioned space
Giải thích
A radiant barrier is a low-emissivity reflective surface that reflects radiant heat from the hot roof deck, reducing heat transfer into the attic and living space. It does not work by adding thermal mass, sealing air leaks, or raising wall insulation R-value.
Trích dẫn luật: 2025 CA Energy Code (Title 24, Part 6)Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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