HWL Windows now offers four Timberwelded Part-L-ready flush systems. The announcement comes as tougher regulatory requirements for the energy efficiency of windows and doors comes into force this June.
The UK government released an update to Part L of the building regulations at the end of last year. It aims to deliver an uplift in performance for new builds to a uniform 1.2W/m²K for windows and doors, and 1.4W/m²K (or WER B rating) for home improvements. Coming into force from June, some systems will struggle to meet new-build requirements without moving to the use of triple-glazed IGUs, according to HWL’s representative.
“We make four different flush casement systems,” explained Mark Haley, HWL’s managing director. “This includes Residence Collection R9, R7 and R2, each of which meets new-build as well as home improvement Part L requirements, in a Timberwelded and non-glass-bonded flush casement window.
“We also offer the new Kömmerling Flush casement, which is also available in a Timberwelded 90° joint, and as an ultra-energy-efficient and six-chamber system. It comfortably achieves a U-value of 1.2 W/m²K, without having to go to a triple-glazed unit.”
HWL added the Kömmerling Flush casement to its offer at the start of this year. As well as delivering an advanced level of thermal performance and elegant flush finish, it uses a flush finish gasket and discrete weather sealing. A sash locator system is also said to guarantee that the sash returns to a central position in the frame.
Mark continued: “We’ve built our reputation as a specialist manufacturer of Residence Collection product, but we see the Kömmerling flush casement as a very important addition to our range, because it gives us and our customers reach into a broader sector of the market. We manufacture it using the same Timberweld technologies that we developed in the manufacture of R9, to create that traditional 90° timber-like joint in a welded, not mechanically jointed, window.
“It’s the same aesthetic but stronger. You’re not relying on screws and glue. This delivers better through-life performance.”
HWL pioneered the development of non-glass bonded Timberweld R9, making it easier to handle and significantly reducing costs for installers. It now offers a Timberweld Residence Collection open-in door, giving its customers the opportunity to upsell a matching Residence window and door package to homeowners.
“It’s technology we’re now applying to the Kömmerling flush,” added Mark. “We’re the first, and we believe currently the only fabricator manufacturing it with a Timberweld finish. It’s something which we know delivers real commercial advantage for our customers.” For more information, email sales@hwlwindows.co.uk, call 0113 244 9006 or visit hwlwindows.co.uk.
