lindab | roof hoods Roof hood Dimensions ØD HV H h Description Circular roof hood with angled upper side intended for out- door air and extract air. The hood is designed for location above the roof with or without a roof through connection. The air runs both on the top- and downside of the hood. This is valid both for outdoor and extract air. The hood is free-draining downwards. Can also be supplied with a pest- proof mesh. NOTE! When fans are not running there is always a risk for drifting snow and damp to penetrate into ducts. At some occasions also condensation can cause trouble. HV is manufactured as standard from galvanised steel plate Z275, but is also available in aluminium zinc AZ 185, stain- less steel sheet 1.4301, stainless acid-resistant steel sheet 1.4404 or painted. HV is available with different angles in order to be in har- mony with the architectural design of the building. HV in dimensions 100 – 315 has a sleeve connection as standard and fits on the outside of ventilation ducts. Dimensions 400 – 1250 are supplied with flange connection (including counter-flange) as standard. They are also sup- plied with twistable lifting and anchoring eyelets. An individ- ual anchoring eyelet must not be subjected to forces in excess of 1 500 N. All dimensions can also be obtained with connections that fit directly to the roof through connection TGR. Ordering example HV 315 1 Product Dimension Ød Connection options Sleeve (standard 100 – 315) 1 Flange (standard 400 – 1250) 2 Transition piece to roof through connection 3–15 Specify size of roof through connection according to the measurement table to the right. Specify separately if the hood is to be supplied with a pest- proof mesh from the factory and if a special angle is required. Standard colours, see page 3. Ød Roof through connection TGR Ød ØD h Free 50 100 H α area m [mm] [mm] nom [mm] [mm] [mm] ° m² kg Size 100 168 180 343 45 0,008 0,79 3 3 125 209 200 403 45 0,012 1,12 3 4 160 266 245 479 42 0,020 1,45 3 4 200 340 300 567 39 0,031 2,47 3 4 250 420 355 664 37 0,049 4,03 4 5 315 525 460 834 36 0,078 5,91 5 6 400 700 550 1015 34 0,126 17,0 5 6 500 870 630 1188 33 0,196 29,4 6 7 630 1115 780 1470 32 0,312 43,0 8 9 800 1407 1040 1872 31 0,503 76,4 9 10 1000 1712 1270 2285 31 0,785 110 11 12 1250 2092 1585 2780 30 1,230 252 14 15 Technical data 1000 Ø D 100 Δ p t [Pa] 100 125 160 200 250 315 400 500 630 800 1000 1250 10 10 100 100 1 000 1 000 10 000 100 000 [l/ s ] 10 000 q 100 000 [m³/h] 8 We reserve the right to make changes without prior notice
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