Roof Curved Forward

An element of the second empire architectural style mansard style in the u s.
Roof curved forward. Wg 498 pa and up to 14 300 cfm 24 300 m3 hr. Backward curved blades as in figure 3 b curve against the direction of the fan wheel s rotation. Larger backward inclined curved blowers have blades whose backward curvatures mimic that of an airfoil cross section but both designs provide good operating efficiency with. Square base allows discharge to be oriented in any of 4 directions.
Back draft damper and bird screen included. Durability for filtered roof supply applications. The minimum radius for curving on 0 58mm isq300 material is 900mm and on 0 80mm isq230 material it is 600mm. If you have a resort or beautiful villa you can opt for a curved roof.
A roof with the pitch divided into a shallow slope above a steeper slope. 300dd ec forward curved roof exhauster. Stable performance down to 700 cfm 1189 m3 hr. High efficiency direct drive motor for energy efficient low maintenance applications.
Cabinet insulated with 1 2 fiberglass insulation. When only a part of the sheet is curved and bullnose slight crease marks on the sheets can be expected. Curved metal roof design. Vertical seam panels unless hand formed or customer curved do not work real well on concave or convex surfaces.
Cabinet insulated with 1 2 fiberglass insulation. A roof similar to a mansard but sloped in one direction rather than both. Performance up to 2 in. Automatic gravity back draft damper and bird screen are included.
These roofs are architecturally sound and visually pleasant looking. The fcv forward curved packaged vent set is designed to supply and exhaust air in hospitals hotels schools fume hoods etc. Permanent washable aluminum filters result in. Weather covers are available for protection of motor and drives for outdoor applications.
Sizes wheel diameters 7 5 to 36 5 inches 195 mm to 930 mm performance airflow to 29 100 cfm 49 400 m 3 hour. Low operating rpm of forward curved blowers results in low noise levels. Wooden beams are sometimes bent to create beautiful roofs. Blower is mounted on heavy steel angle with rubber isolators.
Smaller blowers may have backward inclined blades which are straight not curved. You can paint these roofs in bright and contrasting shades. Applications include hvac ventilation oven and dryer exhaust and process drying and cooling. The steep slope may be curved.
Centrifugal fans blowers with forward curved wheels are well suited to ventilation and industrial process applications where moderate capacities at low pressures are required. Double width forward curved centrifugal wheel results in high efficiency and low sound levels. Every once in awhile someone asks me about putting metal on a roof that is either round or else has a concave or convex curved roof up the rafter like a bell shape.