Trimvent 90 Hi Lift

Aluminium slot ventilator

For use on PVCu, timber or aluminium windows

Trimvent 90 Hi Lift is a semirecessed aluminium slot ventilator that fits over a 16mm slot in a window and provides an Equivalent Area (EA) of up to 8600mm² when fitted with the Hi Flow canopy. The TV90 Hi Lift is ideal for both new build or refurbished situations using any window material and is available in a variety of colours.

The Hi Lift design improves the Trimvent range to offer increased ventilation giving optimum airflow (and therefore Equivalent Area) utilising existing Trimvent slot sizes and vent lengths, meaning they are 60% more efficient than previous models.

Specifically developed for recent revisions to Part F of the Building Regulations, Ventilation (England & Wales), and to improve performance for requirements throughout the UK and Europe.

Trimvent 90 range of ventilators have been specified and fitted on millions of windows throughout the UK and mainland Europe over the last thirtyfive years.

System 1 System 2 System 3






Features & Benefits

  • Revised design to improve performance and Regulations compliance.
  • T-bar deflects air up and down.
  • Compression closing action.
  • For use on 16mm slot.
  • Based on successful Trimvent® principle.
  • Unique linkages ensure constant friction and smooth action.
  • Canopy features integral screw covers.
  • Special colours available on request.
  • Felted gasket for increased performance.
  • When specified correctly, complies with British Building Regulations.
  • Effective in reducing pollutants in the home and improving Indoor Air Quality (IAQ), therefore reducing the risk of Toxic Home Syndrome.

Trimvent® 90 Hi Lift Ventilator

Trimvent® 90 Hi Flow Canopy

Product Product Code (L)
Length (mm)
Width (mm)
Projection Closed-Open (mm)
Free Area
Slot Detail
TV90 HL 2500EA 300 Vent TA634 300 22 17 - 27 2500 2649
HF 303 Canopy TA6057 303 24 36.5 4458
TV90 HL 4300EA 425 Vent TA631  425  22  17 - 27  4300 4184  
HF 441 Canopy TA6054 441 24 36.5 6763
TV90 HL 5000EA 525 Vent TA635 525 22 17 - 27 5000 5308  
HF 529 Canopy TA6058  529  24 36.5  8223
TV90 HL 8600EA 835 Vent TA633 835 22 17 -27 8600 8368  
HF 844 Canopy TA6056 844 24 36.5 13493

EA figures above and marked on vents are achieved when fitted to manufacturer’s recommendations. Tested in accordance with BS:EN 13141-1 (2004).

Through Sash

Manufactured From

Aluminium 6063 HIT T6, component parts PVCu, POM & PP (UV Stable)

Recommended Screws

3.5mm (No.6) Round Head or equivalent.


Tested in accordance with BS EN 13141-1:2004 (air flow, air leakage and weather tightness).

Acoustic performance tested in accordance with BS EN ISO20140-10:1992, BS EN ISO140-10:1991 and single figures to BS EN ISO717-1:1991.


(Full test details available on request)

Equivalent Area – See above.

Free Area – See above.

Air Leakage (m³/hr @ 50Pa) – 1.09 (4300EA version)

Water Resistance (Pa) – 600.

Acoustic D n,e,w (+/-) – vent open 31 (0;1), vent closed 42 (-1;-2).


Suffix product code with:
-020 (white), -001 (SAA) (Canopy -026), -023 (brown).

Other colours available contact sales for details

More information / 01206 713801