VMZ BlockHeat

The VMZ BlockHeat external awning blind is designed for installation on vertical windows and wooden or PVC balcony doors. Installation outside the glazing helps limit solar heat gain and the heating of the room.
In the assessed configurations, the total solar energy transmittance (g-value) of a window fitted with the VMZ BlockHeat awning blind ranges from 4% to 14%, depending on the fabric variant and the configuration included in the calculations performed in accordance with EN 13363-1.*

 Download VMZ BlockHeat catalogue

 

 

The blind is made from mesh fabric intended for external applications. It limits the intensity of incoming light and glare while maintaining outward visibility

Internal blind does not offer any protection against room overheating.	The external awning blind stops solar radiation outside the window, thus preventing the room from excessive overheating.

The awning blind significantly reduces UV radiation which means that objects inside the room retain their natural colours for longer.

The space should be protected from overheating on summer days with the use of external sun screening devices placed outside the glass which reflect the heat.
Rooms overheating is a result of the global radiation absorption by various objects in the room (walls, floor). The absorbed radiation converts into long-wave infra-red
radiation (thermal) which is not transmitted outside by the window glass and leads to undesirable heat gain in the summer.” - DIN 5034-1

 

Solar energy transmittance “g”
Window without sun screening devices	61% g= 0,61 (wg EN410)
Window with internal blind	37% g= 0,37 (wg EN 13363-1)
Window with VMZ BlockHeat Solar awning blind	4-14% g= 0,04-0,14 (wg EN 13363-1)

 

Characteristic:

 

LIMITING SOLAR HEAT GAIN

• The VMZ external awning blind is installed outside the glazing and helps limit solar heat gain before solar radiation reaches the internal surface of the window.
• In the assessed configurations, the total solar energy transmittance (g-value) of a window fitted with the VMZ BlockHeat awning blind ranges from 4% to 14%, depending on the fabric variant and configuration included in the calculations performed in accordance with EN 13363-1.* 

LIGHT AND PRIVACY

• The mesh fabric limits the intensity of incoming light and glare while maintaining outward visibility.
• When lowered, the fabric partially obscures the view into the room. The level of privacy depends on the fabric variant and the difference in lighting between the interior and exterior.
• Any claim concerning UV transmittance or protection of furnishings should be supported by test results for the relevant fabric.

OPERATION

• The VMZ awning blind is operated manually.
• Depending on the product version and installation height, it can be operated by hand or with a compatible control rod supplied with the product.
• Operation should follow the product instructions.