TEK’s new insulated and thermally broken damper has independently verified class leading performance. Dampers are at the heart of our Natural Ventilation range and the latest design provides lower U values to meet Approved Document L of building regulations with enhanced shut off. They also offer higher acoustic performance when shut.


TEK Insulated Damper
Attention to detail has provided the following specification and performance.
- Free area open 74%
- Duty 800 l/s/ m² (@1pa)
- K factor intake 2.57 exhaust
- Air tightness closed QN50 = 0.79m³/H*M
- ‘U’ value <1 w/m²k
- Class A till v = 1.5m/s when fitted with TEK EL50 louvre
- Fire resistance blade VO(flame retardant) in accordance with UL94 m1-nfp92-501
- Acoustic data in open position 13dnew and closed position 32dnew
- Material frame aluminium powder coated black (60-80 microns)
- Blade black PVC
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Dampers can be factory fitted with a choice of modulating or open/close electric motors, or hand operated handle. They can also be manufactured to any size via multiple panels.
We can provide a single damper in one piece up to 1500 x 1500.
Multiple dampers are available with mounting frames.
Dampers are finished in black.


