This article appears in
Glass & Glazing ( 20 February 2020 )

20 February 2020

Howells Patent Glazing

Triton Works, Woods Lane, Cradley Heath, B64 7AN

T: 01384 820 060


Howells Patent Glazing is pleased to introduce two new developments for its non-intrusive, low-pitch aluminium roof light, Ultraline, including a vented option and a minimalist steel rafter alternative for smaller roofs.

Ultraline provides architects, designers, builders and contractors with the ability to maximise daylight with large expanses of glass, without compromise. The developments enhance Ultraline’s superior aesthetics and performance.

Insulated Steel Rafter

An option for roofs typically measuring up to 1500mm, a steel bar divider is used rather than Ultraline’s standard glass rafter. The insulated steel rafter is part of the frame and matches the width of the standard glass rafter (40mm) but unlike the glass option, it need only be 40mm deep to meet load requirements across any span. The steel rafter offers architects and designers an enhanced minimal look.

On most installations, the Ultraline rooflight with insulated steel rafter can be delivered assembled as a completed frame. This is a benefit for both installers and the end-user as it reduces labour and costs.

Vent Option

To enable controlled, natural ventilation, Ultraline can now be supplied with an opening vent. Synchronised motors lift the glass, with multiple motors required for large expanses. All of the motors are hidden from view. Multiple vents are dependent on the capacity of the motors.

The vent is controlled using an open/close switch, as standard. Customers can upgrade to remote controls or a digital control panel with built-in external rain sensor and internal thermostat.

About Ultraline

Ultraline has been independently tested for Weather tightness (BS 6375 Part 1) and Resistance to snow and permanent load (EN 14351). It is certified to PAS 24 and Approved Document Q (Security – Dwellings), offering peace of mind against low-level burglary. The glass rafter roof light also meets the requirements of Secured by Design.

Howells’ aluminium roof lights are thermally broken for superior thermal performance, Ultraline achieves an overall U-value of just 1.4 W/m2K when using a 28mm double glazed unit with a centre pane value of 1.0 W/m2K. Triple glazed options also available.

For added impact, Ultraline can be powder coated in a standard RAL colour, including dual colours (one colour inside, another out). Typically, Howells offers High Gloss Black and RAL 7016M Anthracite Grey externally and RAL 9910S Hipca White internally, as standard.

Howells offers several glazing options with clear toughened glass as standard. Customers can upgrade to solar-controlled, high performance or super neutral glass. For certain applications such as swimming pools, schools and hospitals, the company offers a toughened laminated glass.

All roof lights are designed and made to order, manufactured using Howells’ bespoke rooflight system in the company’s ISO 9001:2015 certified facility.

Follow Howells Patent Glazing on Twitter @HowellsGlazing for news, views and product updates.

View Previous Article

View Next Article