Fixed or hinged vent rooflight with curb adaptor or upstand, suitable to incorporate ventilation options. Available in square and rectangular sizes, this rooflight can be double clear or PAG (diffused) polycarbonate. Simple snap-together assembly.

Dimensions			Ventilation Areas
Overall size of rooflight / roof opening when using splayed upstand (A) (mm)	Overall Curb Dimension including waterproofing (B)		Space Vent SV2 & SV3	Hinged ventilator	Hit & Miss Ventilation
	For Curb adaptor (mm)	For SV2 Space ventilator (mm)	M² (Total)	(M²)	M² - Two Sides
600 x 600	510 x 510	570 x 570	0.144	0.225	0.020
750 x 750	660 x 660	720 x 720	0.192	0.300	0.025
900 x 900	810 x 810	870 x 870	0.240	0.375	0.031
1200 x 600	1110 x 510	1170 x 570	0.240	0.375	0.043
1200 x 900	1110 x 810	1170 x 870	0.288	0.450	0.043
1200 x 1200	1110 x 1110	1170 x 1170	0.336	0.525	0.043
1500 x 1500	1410 x 1410	1470 x 1470	0.424	0.675	0.055
1800 x 1200	1710 x 1110	1770 x 1170	0.424	0.675	0.067
1800 x 1800	1710 x 1710	1770 x 1770	0.512	0.825	0.067
2400 x 1200	2310 x 1110	2370 x 1170	0.512	0.825	0.091