Multicolor™ Steels has introduced a wind driven natural Ventilation system with a motive to expel hot, humid and
moisture laden air from industrial buildings to give a more comfortable clean working environment replacing summer
heat and winter damp with fresh air.

Wind Driven Ventilators is manufactured from rust-resistant, lightweight galvanized steel. It has been designed to
meet AS2428.1-1993 to wind speeds of 200 km/hr and to the entry of wind driven rain at a range of 2.5L/sec, under
cyclonic conditions.

Using only the power of wind, Wind Driven Industrial Ventilators silently draw hot, damp and stagnant air from the
building, replacing it with clean, fresh air - all year round....Without any maintenance costs. It will also extract deadly
smoke and fumes from the building, allowing occupants a much better chance of escaping safely.

ADVANTAGES
• Installation on new or existing roof is a simple process as the metal base can be shaped on site to any roof profile.

• In case of any difference in thermal and wind pressure, the turbine head and ball bearings help the ventilator to
rotate freely providing natural ventilation.
• It is corrosion resistant giving r edness to the structure. The variable pitch throat makes it possible to be fixed
at any roof pitch.
• Its storm proof feature enables rain water to drain through without spilling into turbine.

KEY FEATURES
• Maintenance free and rotates freely due to the permanently lubricated bearing system
• Easy to handle and install with a variable pitch base, fitting all tile, metal and fiber cement roofs with pitches upto 45°
• Long Lasting - 10 years performance warranty
• Removes dampness and humidity
• 24 hour fresh air keeps workers active and healthy

BENEFITS
No Operating Costs: As the Multi-Vent System, is a self contained wind powered design, there are no operational
cost incurred.
Reduced Power Costs: Proper ventilation provides a cooler, low humidity working environment, which reduces the
need for costly air conditioning or industrial fans.
Reduced Installation Costs: Due to the versatility of the variable pitch throat, installation costs are reduced as one
unit fits most industrial application (00 to 22.50).
Income Tax Benefit: Multi-vents are 100% depreciable under Income tax laws giving huge benefits.
Reduced Maintenance Costs: Rising damp & humidity caues corrosion of building structures, painted surface,
metal fittings and electrival wiring. Proper ventilation eliminates these problems.
 

COMMON USES: Multi-Vent roof ventilation system is meant for warehouses, factories and workshops, Gyms,
Tennis courts, Assembly halls, garages, toilets, laundries etc.

Calculating How many VENTILATORS
• Determine the volume (VOL) of the building in cubic meters. (Length x Width x Height)
• Dependent on the building type, select the required Air Changes (A/C) per hour.
• From local authority records, determine the typical wind sped, 6, 8, 10,12 or 16 km/h. This will establish the
exhaust capacity M3 per hour
• Calculate No. of Ventilators = VOL x A/C