Roof hood lindab | roof hoods H Dimensions 1 ØD 2 3 H 4 Ød 5 Description Circular roof hood intended for outdoor 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 out- door 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. H is manufactured as standard from galvanised steel sheet Z275, but is also available in aluminium zinc AZ 185, stain- less acid-resistant steel 2343 or painted. H in dimensions 100 – 315 has a sleeve connection as stan- dard and fits on the outside of ventilation ducts. 6 Roof through connection TGR 7 50 100 8 Ød ØD nom mm H Free area m mm m 2 kg mm mm Size 100 168 180 0,008 0,72 3 3 125 209 200 0,012 1,02 3 4 160 266 245 0,020 1,32 3 4 9 200 340 300 0,031 2,26 3 4 10 250 420 355 0,049 3,67 4 5 315 525 460 0,078 5,38 5 6 400 700 550 0,126 16,2 5 6 Dimensions 400 – 1250 are supplied with flange connection (including counter-flange) as standard. They are also sup- 11 500 870 630 0,196 28,1 6 7 630 1115 780 0,312 40,9 8 9 plied with twistable lifting and anchoring eyelets. An individ- ual anchoring eyelet must not be subjected to forces in excess of 1 500 N. 800 1407 950 0,503 75,0 9 10 12 1000 1712 1180 0,785 108 1250 2092 1495 1,230 247 11 12 14 15 All dimensions can also be obtained with connections that fit directly to the roof through connection TGR. Technical data 13 1000 Ordering example 500 H 315 1 Ø D 14 1250 1000 800 400 500 630 125 160 200 250 315 100 Product Dimension Ød Connection options Sleeve (standard 100 – 315) Flange (standard 400 – 1250) Transition piece to roof through connection 1 2 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. Standard colours, see page 443. Δ p t [Pa] 100 50 10 10 100 100 1 000 10 000 100 000 [l/ s ] 1 000 10 000 q 100 000 [m³/h] 15 16 17 18 We reserve the right to make changes without prior notice 445
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