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The Benefits of Buying Unglazed.
Simpler. Quicker. Better.
Save money and time on every installation.
Timberweld® vs Glass Bond
Timberweld® is an innovative solution to creating an authentic 90° butt-joint effect that replicates the appearance of a traditional timber flush casement or mechanically jointed sashes. Eliminating the need for glass bonding meaning they can be supplied unglazed for a quicker, easier installation with a better margin.
Cut installation costs by up to 1/3
You could cut your Residence Collection installation costs by up to a third by switching from mechanically jointed sashes to Timberweld® sash. It significantly reduces weight for a quicker & easier installation.
Tradition meets performance
- Replicates 90° mechanical joint and butt jointing associated with traditional flush casement.
- Sashes are 90° butt welded inside and out.
- Increased strength of Timberweld® sash eliminates requirement to glass bond.
- Source glass as standard.
- Reduces weight in handling .
- Simplified installation.
- Easily replace damaged or failed units.
- PAS24 and Part Q approved.
- BS EN 6375 – 1 severe weather tested.
- 10-year guarantee
Rigorously Tested: 10,000+
We have supplied over 10,000 frames to satisfied customers across the UK. We’ve worked in partnership with the Residence Collection to put unglazed Timberweld® windows through a rigorous testing programme.
PAS24 and BS EN 6375 – 1 weather testing conducted by independent testing house Exova early in 2018, gave our non-glass bonded sash window a flying PAS24.
BS EN 6375 – 1 weather testing gave our R9 non-glass bonded window an Exposure Category of 1600; a Class 3 Air Permeability Rating (600pa); a Class 9A (600pa) Water Tightness Rating; and top Class C4 (1600pa), resistance to wind. With over 10,000 frames sold across the UK, our system is truly tried and tested.
PAS 24
Part Q
BS EN 6375 – 1 severe weather tested
Stronger & No Need to Glass Bond
Timberweld® re-writes the rule book. The patented fabrication method replicates the aesthetic of a traditional timber flush casement in the same way as mechanical jointing. The difference is welded corner joints are far stronger than mechanically jointed ones – it’s why standard uPVC systems are today always welded not mechanically jointed.
The Timberweld® 90° unglazed Residence Collection head weld consistently stands up to up to 11 bars or 1100kN/m2 of pressure. That’s consistent with a standard 45° uPVC welded product which ranges from 9-12 bars (900kN/m2 – 1200kN/m2) the only difference is that it does so in a 90° butt joint inside and out.
Do you know your welds from your joints?
45° Standard PVC-U weld
- Creates a strong robust corner joint
- No requirement to glass bond
- IGUs can be easily replaced
- 45° joint offers a poor match to traditional timber casements
External or Internal Timber look windows
- Replicates defining 90° butt joint on traditional timber flush casement windows.
- Creates a strong robust corner joint.
- No need to glass bond.
- Glass can be sourced locally.
- Reduced handling weights.
- Simpler installation.
- Recreates 90° butt joint on one side only
Mechanical Joint
- Replicates defining 90° butt joint on traditional timber casement windows.
- IGUs form a key structural component of the sash and must be glass bonded.
- This increases weight and complexities in handling and installation.
- Replacement of failed or damaged IGUs can be complex.
90° butt joint un-glazed Timberweld®
- Replicates defining 90° butt joint on traditional timber flush casement windows.
- Butt weld inside and outside of sash.
- Creates a strong robust corner joint.
- No need to glass bond.
- Glass can be sourced locally.
- Reduced handling weights.
- Simpler installation