SONOR-VENTI
The patented door solution combining sound insulation and ventilation
SONOR-VENTI is a pioneering product that unites sound insulation and ventilation in a single door leaf. This opens up entirely new possibilities for architects and developers, as they no longer have to choose between the two functions. It is therefore possible to easily and effectively create rooms with both features. There are a variety of models available, and the design of the ventilation openings can be tailored to individual tastes. As a result, SONOR-VENTI is extremely versatile in terms of look and feel.
SONOR-VENTI doors are based on a design principle that is simple yet smart: Vertical channels in the middle layer of the door allow unrestricted air flow. Sound waves, by contrast, are forced to change direction multiple times within the channels, attenuating to almost nothing. Sound is only propagated via the surface area of the door leaf.
VENTI-CIRCLE
venti-circle K 38 (shown)
Ventilation holes fitted with black plastic rings, raised collar 1 mm in height, 38 mm in diameter.
venti-circle niro 32
Ventilation holes fitted with stainless steel rings, flush with the door, 32 mm in diameter.
VENTI-STRIPE
venti-stripe
venti-stripe features aluminium air vents flush with the door: one per side, 40 mm wide. The door can optionally be fitted with a decorative top strip.
VENTI-INSERT
venti-insert
venti-insert – enhanced by high-class product design, PHOENIX DESIGN, a world-leading studio based in Stuttgart, Germany, created an out-of-the-ordinary air-vent design especially for neuform. Its clean-cut aesthetic is a far cry from the plain-and-simple functional look of traditional grilles. True to the "form follows function" principle, the team developed wave-shaped stainless-steel sheets that assist ventilation in a highly effective manner.
VENTI-PROTECT
venti-protect
venti-protect is ideal for environments with high mechanical stresses, as the vent also serves as a kick plate. A venti-protect door leaf with an HPL surface finish and moulded PU‑protect edging can withstand significant wear-and-tear. The easy-to-clean finish makes this model particularly suitable for hospitals.
Technology
SONOR-VENTI – HOW IT WORKS
The patent-pending SONOR-VENTI interior door features an invention that combines ventilation with sound insulation in a simple and practical way.
Unrestricted ventilation
Air enters via vertical ventilation channels that are connected to a vent to both the outer and inner sides of the door leaf – either in the form of ventilation holes or a horizontal, wave-shaped vent made from stainless steel.
Highly effective sound insulation
The door’s inherent sound insulation properties remain intact. This is because the sound waves that penetrate the door leaf are deflected by 90 degrees and, due to the length of the ventilation channels, are only able to exit at the other end to a limited extent.
Fully compatible with standard ventilation systems
i.f.t. Rosenheim test laboratory found air resistance measurements comparable with standard ventilation grilles. Doors with leaves 86 cm or more in width comply with DIN 18017 part 3, which calls for a cross-sectional area A of 150cm². As a result, the door functions well with traditional ventilation systems. The vertical channels in the middle layer allow unrestricted air flow. By contrast, sound waves are forced to change direction multiple times in the channels and diminish to almost nothing. Sound is only propagated via the surface area of the door leaf.
COMPARISON OF SOUND INSULATION VALUES
Conventional door leaf
with vent that passes directly through the door leaf Sound insulation value Rw, P = 17 dB
SONOR-VENTI 40
Door leaf thickness 40 mm, Sound insulation value Rw,P = 24 dB without a floor seal Sound insulation value Rw,P = 32 dB with a floor seal
SONOR-VENTI 65
Door leaf thickness 65 mm, Sound insulation value Rw,P = 38 dB with a floor seal
Yellow line: conventional door leaf with vent that passes directly through leaf, Sound insulation value: Rw,P = 17 dB
green line: SONOR-VENTI 40, door leaf thickness 40 mm, sound insulation value: without a floor seal Rw,P = 24 dB, with a floor seal Rw,P = 32 dB
blue line: SONOR-VENTI 65, door leaf thickness 65 mm, sound insulation value: with a floor seal Rw,P 32 dB
red line: shifted reference curve
AIR RESISTANCE TESTING
i.f.t. Rosenheim measured air resistance in accordance with DIN EN 42 and obtained very low values approximately comparable with those of a conventional ventilation grille.
23 m³/h at 2 Pascal
32 m³/h at 4 Pascal
66 m³/h at 10 Pascal
VENTILATION CROSS-SECTIONS AND AIR FLOW RATES
| SONOR-VENTI 40 / 65 / T30* | |||||
|---|---|---|---|---|---|
| external width of door leaf | 735 mm | 860 mm | 985 mm | 1110 mm | 1235 mm |
| ventilation cross-section | 138 cm² | 161 cm² | 185 cm² | 208 cm² | 232 cm² |
| air flow rate at 5 Pa | 51 m³/h | 60 m³/h | 68 m³/h | 77 m³/h | 86 m³/h |
| air flow rate at 10 Pa | 74 m³/h | 87 m³/h | 100 m³/h | 112 m³/h | 125 m³/h |
| air flow rate at 15 Pa | 88 m³/h | 103 m³/h | 118 m³/h | 133 m³/h | 148 m³/h |
| SONOR-VENTI duplex | |||||
|---|---|---|---|---|---|
| external width of door leaf | 735 mm | 860 mm | 985 mm | 1110 mm | 1235 mm |
| ventilation cross-section | 251 cm² | 294 cm² | 337 cm² | 380 cm² | 423 cm² |
| air flow rate at 5 Pa | 73 m³/h | 85 m³/h | 98 m³/h | 110 m³/h | 123 m³/h |
| air flow rate at 10 Pa | 98 m³/h | 115 m³/h | 131 m³/h | 148 m³/h | 165 m³/h |
| air flow rate at 15 Pa | 113 m³/h | 132 m³/h | 152 m³/h | 171 m³/h | 190 m³/h |