The Ventient Solution
Ventient devices can be used as part of a natural, mixed mode or other mechanical ventilation approach making use of outdoor/indoor pressure differentials to introduce fresh outside air.
Using state-of-the-art passive temperature perception technology, Ventient is an environmentally friendly technology that does not require the use of electric power or sensors. In utilising the physical characteristics of a unique Shape Memory Alloy (SMA), Ventient can adjust the volume of ventilation levels depending on ambient temperature.
Ventient usually works in automatic mode but most devices will also offer the ability for occupants to manually close off ventilation if required. The devices can also be easily accessed for maintenance and to clean or replace filters.
Ventient for Curtain Wall & Windows
A key advantage of window trickle vents is that most rooms have at least one window so no additional penetrations in the building envelope are required to provide background ventilation. Ventient trickle vents can be integrated into both windows and curtain walls.
There are three typical product options.
Integration of standard devices
The Ventient SCW range of vents has a strong track record dating back to 2006 with extensive use in high rise buildings in Japan. These devices can be mounted in any orientation into conventional window systems or as a part of a curtain wall with vents located to the sill, transom, head or vertically into the mullion or jamb. To accommodate the Ventient device and create an effective pathway for the passage of air from the exterior, will require some design integration and possibly new extrusions.
Glazed in trickle vents
Several devices are available to fit into the glazing pocket of the window frame and couple with the glazing or IGU. Aluminium, PVC or hybrid options are available and when combined with optional custom interior and exterior covers, will integrate seamlessly with the window design.
As part of a product development process we will work with window manufacturers to design and test new devices to provide a unique custom solution. OEM customers include major global manufacturers such as YKK-AP and LIXIL.
Performance and Testing
Just like an open window, ventilation by its very nature forms a break in the continuity of the building envelope. It is therefore important to test and fully understand how a Ventient device impacts on air and water tightness, structural integrity and acoustic performance.
PGA and Sahara will work with window manufacturers to ensure that when integrated into a window or curtain wall design that local standards and building code requirements can be met.
Sahara has worked with their customers to supply and test products that need to survive Japanese extremes including typhoons, heavy seasonal rainfall and earthquakes. This experience assists in the optimal integration of Ventient into the curtain wall, window or building design anywhere in the world.
All Ventient devices are 100% designed, manufactured and assembled in Japan by Sahara to meet strict quality control requirements.
The Ventient SCW-NS device for example, as an individual unit has been tested as follows.