The importance of Wind Turbine Roof Ventilators often referred to as Whirlybird Roof Ventilators is very underestimated in South Africa. Many homeowners are of the opinion that the benefits of Wind Turbine roof ventilation are only for summer. Unfortunately, this is not the case, in fact, the winter and summer benefits are equally important. The ideal application includes installing roof ventilation units with roof insulation. Homes that have been correctly insulated with Roof Insulation are ideal candidates for extraction units. As a result, they will have even better summer indoor temperatures, and of course, the winter benefit of insulation is a no-brainer. Check out the benefits of Roof Insulation.
Wind Turbine Roof Ventilator Benefits
- Reduce roof space temperature on hot summer days.
- Cooler home in summer
- Remove moisture and condensation in the roof space.
- Reduce condensation and mold in winter by recycling cold damp air
- Save plastic underlay or Sisalation foil from breaking up and disintegrating with a cooler roof space
- Remove stale air from the roof
- It helps reduce damaging moisture. Excessive moisture can build up in the attic, potentially damaging the structure and degrading the roof system. It can also lead to mold.
- It can help save energy. Heat build-up in that attic comes at a cost—a home’s air conditioning has to work harder to cool down the house, especially the living space below the attic.
- It helps prevent damage to the roof shingles. High attic heat can bake the shingle and cause them to prematurely age. In fact, most major shingle manufacturers strongly recommend proper attic ventilation on asphalt shingle installations.
Importance of Removing Stale Air In The Roof Space
Removing stale air from the roof is excellent from a health point of view. However, there are many other important factors that we need to also take into account. Additionally cold moist air in winter allows cold damp air into the roof space. As a result, removing the moist air is essential.
A key ingredient to creating mold or condensation in the roof is moist cold air. Wind Turbine Whirlybirds remove up to 5000m3h of cold air reducing the potential for moisture in the roof space as a result of the airflow in or out of the roof. Removing stale air is also healthier for the family and also reduces the smell of the stale damp air.
Wind Turbine Roof Ventilators Reduce Roof and Ceiling Damage
Sumner Benefits: In summer the heat build up in the roof space, and temperatures can exceed 75 degrees C. As a result, the heat in the roof can damage the plastic underlay or the Sisalation foil fitted under the roof.
Many homes have perished, or damages foil under the roof. As a result, homeowners will be exposed to the potential for roof leaks in the rainy season. Wind Turbine Roof Ventilators will reduce the temperature in the roof by as much as 30 degrees.
As a result, improving the internal temperature in the home.
Winter Benefits: The facts are in the Western Cape we have long cold wet winters. Therefore the cold, moist air that is in the roof space needs to be circulated and removed.
Damage from the moisture can affect the wooden trusses and batons. Additionally, the ceiling will retain some of the moisture creating a damp cold ceiling. Therefore any Roof Insulation in the Roof space is also affected by the moisture.
Fortunately, most Roof Insulation materials will dry out on the first hot day. The potential for mold and condensation in the home increases substantially.
Importance Of Whirlybird Roof Ventilators
Realistically Roof Ventilators like the Whirlybird should be fitted on all roofs that do not have proper roof ventilation. In fact, most homes in South Africa do not have the right roof ventilation benefits.
Most homeowners are of the opinion that Whirlybirds are only for summer use. This is not the case as cold winters create harmful moisture build up in the roof. The Wind Turbine Roof Ventilators remove the moist air and circulate with fresh air continuously.
Also, all new homes in South Africa must be insulated with the correct Roof Insulation for the specific province. As a result, cold, wet winters can affect the insulation by leaving moisture in the Ceiling Insulation. Well ventilated homes will not have this problem.
240mm Wind Turbine Roof Ventilator For Homes (Whirlybird)
Most commonly installed Whirlybirds for homes is the 240mm. Applications include roofs all types of roofs and must be fitted as high as possible on the roof. Our 240mm Wind Turbine Roof Extractors will remove 1000m3h with a 15Kmh wind. However, with a 25kmh wind, as much as 20003h will be reached. The 240mm Roof Extractors cover an area of 35 – 50m2. Home sizes vary, and the number of Whirlybirds required in some homes will need to be increased to two or three depending on the size of the house. Check prices here
500mm Wind Turbine Roof Ventilator For factories and Shopping Malls (Whirlybird)
With a 500mm throat size, the industrial roof extractors are 555mm wide in the center. Installed in shopping malls and factories of all sizes. Reasons to install the Industrial 500mm Whirlybird Wind Turbine Roof Ventilators in factories and shopping malls include worker and customer satisfaction as a result of a cooler work or shopping environment. These Roof Ventilators will remove as much as 4400m3h at 15kmh and 5800m3h with a 25Kmh wind speed. As a result, the floor space coverage per unit is 120m2. Check prices here
The best way to keep a roof system working well and to help avoid the issues mentioned above is to install proper attic ventilation. Proper attic ventilation creates a balanced system using ridge vents or other exhaust vent in conjunction with intake vents installed at the eave, soffit, or fascia area of the roof. Intake ventilation is critical in ensuring the exhaust vents function properly. Without intake ventilation, most ridge or other exhaust vents can be rendered virtually useless.
Contractors should explain to homeowners why proper attic ventilation is so important with the benefits below. It serves two key functions:
- Allows cool, fresh air to enter the attic at the eave or soffit areas of the roof
- Exhausts hot, moist air from the attic by way of the ridge or other exhaust vents. This hot, moist air can cause a whole host of issues.
Here are some benefits of proper ventilation: