9Skylights and glazed roofs

9 Skylights and glazed roofs

9 Skylights and glazed roofs

(1) A new skylight in climate zone 8 must be—

(a) timber framed, and

(b) double-glazed and filled with argon gas.

(2) A new glazed roof in climate zone 8 must be—

(a) double-glazed, or

(b) timber-framed and made of pyrolytic low-e glass.

(3) A new skylight, glazed roof or external shading structure in climate zone 2, 4, 5, 6 or 7 must—

(a) during winter—

(i) reduce heat loss from the building, and

(ii) increase heat gain from the radiant energy of the sun, and

(b) during summer—reduce heat gain from the radiant energy of the sun.

(4) Subsection (3) does not apply to the smallest new skylight or glazed roof with an area of less than 1m2.