R4400 – Rytons Window Trickle Ventilator (411mm L)

4400mm² Equivalent Area

Categories: Background Ventilators, Window Trickle Ventilators

General Details
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General Details

Two-piece window frame ventilator for habitable rooms and wet rooms.
Allows the introduction of fresh outside air into the room to disperse moisture, odours and other airborne pollutants.
Quickly and easily fitted by surface mounting over a milled-out slot in the window frame.
Use with PVCu, timber or aluminium windows and fit on the sash, frame or overhead section.
Internal vent easily adjusted giving the occupier complete control over the amount of ventilation provided to the room.
Curved shape gives a pleasing appearance by reducing the profile.

Equivalent Area:

4,400mm² (44cm²) per set.

Size:

Internal vent: 411mm L x 18.5mm H x 20-27mm D from closed to open position (overall).
External canopy: 411mm L x 17mm H x 32.5mm D (overall).

Colours and Codes:

White: R4400WH.
Brown: R4400BR.

Performance Data:

Air leakage: 2.42 m³/hr @ 50Pa.
Sound reduction: 32 (0;1) dB Dn,e,w open, 41 (0;-1) dB Dn,e,w closed.
Water resistance (Pa): 600Pa.

Composition:

Internal vent: U.V. stabilised PBTP and POM.
External canopy: PVCu.

Installation:

For slot measurements see our image gallery above. Accurately mill out two slots and pre-drill fixing holes in the head of the window to the size and spacing directed. Fix the external canopy using the screws provided and attach screw covers. For improved weathering apply a run of silicone sealant across the top of the external canopy where it joins the window frame. Fix the internal vent (with the finger grip on the right) using the screws provided and attach screw covers. For improved weathering apply a run of silicone sealant along the canopy sealant groove and when necessary on the underside of the ventilator.

Reference Material:

England: view extracts>>
Approved Document F: Means of Ventilation in Dwellings (2021 edition).

Wales: view extracts>>
Approved Document F: Means of Ventilation in Dwellings (2010 edition incorporating 2013 amendments).
Approved Document F: Means of Ventilation in Dwellings (2022 edition). Note: The 2022 update takes effect on 23 November 2022. It does not apply to work subject to a building notice, full plans application or initial notice submitted before that date, provided the work for each building is started before 23 November 2023.

Scotland: view extracts>>
Building Standards Scotland Technical Handbook – Domestic: Mandatory Standard 3.14 Ventilation.

Northern Ireland: view extracts>>
Building Regulations (Northern Ireland) Technical Booklet K, Ventilation.

Republic of Ireland: view extracts>>
NSAI SR54: Code of practice for the energy efficient retrofit of dwellings.
Building Regulations 2019, Technical Guidance Document F: Ventilation.

Handling Information:

Weight: 133.5gms each.

Got a question? Call 01536 511874 or email us here.

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