SLIM, LOW-SIGHT LINE DOUBLE GLAZED UNITS
Treforest Glass have invested in the design and manufacture of these specialist slim, double glazed units that satisfy the requirements of a low-sight line to be fitted in traditional timber frames.
The Treforest Glass Slim, Low-Sight Line Double Glazed Units will: -
v Maintain the character of your home.
v Keep your house warmer in winter.
v Keep your house cooler in summer.
v Help reduce noise pollution.
v Help fight against condensation.
v Comply with document L Building Regulations.
v Help us all protect the environment by reducing carbon emissions.
Treforest Glass, Slim, Low-Sight Line Double Glazed Units are made up as follows: -
v Slim units that start from a minimum of 10mm thick.
v A maximum of 7mm seal depth (-1mm tolerance) to provide the necessary Low-Sight Line necessary for Traditional Timber Frames.
v Units that can incorporate a wide range of glass, from hand blown traditional glass to high specification specialist glasses.
v Heritage - high specification Edgetech, ‘Super Spacer’ – the best Warm Edge on the market.
v Centre Pane U-Value as low as 1.2 with a 6mm cavity providing up to 77% less heat loss than from traditional single glazing.
v Improved acoustic performance compared with single glazing, assisted by the use of ‘Super Spacer’ and heavy inert gases.
Technical Information
v Heritage ‘Super Spacer’ A High performance warm edge spacer designed especially for the restoration sector. A silicone structural foam spacer containing desiccant with Edgetech’s unique dual seal system that twins an acrylic adhesive on the spacer edge with a hot-melt butyl secondary sealant for outstanding gas retention.
v Thermal Efficiency The thermal efficiency benefits of slim low-sight line double glazing, far outweigh that of single glazing, achieving centre pane U-values of as low as 1.2 on a 6mm gas-filled cavity, depending on the choice of gas used. The reduction of heat loss through the glass is up to 77 per cent better than compared to single glazing.
v Inert Heavy Gas The thermal conductivities of argon and krypton are much lower than air, meaning they are much more efficient insulators and are excellent at reducing U-values in sealed double glazed units.
v Condensation Continual condensation can seriously deteriorate the lower sections of a timber frames – Treforest Glass Slim Low Sight-Line Double Glazed Units will slow down the dew point being reached. The inner pane of the double glazed unit is warmer than the outside pane and our warm edge ‘Super Spacer’ spacer bar acts as a thermal break, stopping the cold reaching the inner pane of the unit. This helps maintain the room temperature when the heating is switched off at night and thereby reduces condensation and heat loss.
Treforest Glass Slim, Low-Sight Line Double Glazed Unit Specifications
SLIM, LOW-SIGHT LINE – THICKNESS 12MM
1.9 U VALUE
4mm Low E Softcoat 4mm Heritage ‘Super Spacer’ Krypton Gas
4mm Clear
SLIM, LOW-SIGHT LINE - THICKNESS 12MM
1.5 U VALUE
4mm Low E Softcoat 4mm Heritage ‘Super Spacer’ Xenon Gas
4mm Clear
SLIM, LOW-SIGHT LINE - THICKNESS 11MM
1.9 U VALUE
4mm Low E Softcoat 4mm Heritage ‘Super Spacer’ Krypton Gas
3mm Clear Histo
SLIM, LOW-SIGHT LINE - THICKNESS 11MM
1.5 U VALUE
4mm Low E Softcoat 4mm Heritage ‘Super Spacer’ Xenon Gas
3mm Clear Histo
SLIM, LOW-SIGHT LINE - THICKNESS 14MM
1.5 U VALUE
4mm Low E Softcoat 6mm Heritage ‘Super Spacer’ Krypton Gas
4mm Clear
SLIM, LOW-SIGHT LINE - THICKNESS 14MM
1.2 U VALUE
4mm Low E Softcoat 6mm Heritage ‘Super Spacer’ Xenon Gas
4mm Clear
SLIM, LOW-SIGHT LINE - REPRODUCTION 11MM
1.9 U VALUE
4mm Low E Softcoat 4mm Heritage ‘Super Spacer’ Krypton Gas
3mm Restoration Glass (Reproduction Crown Glass)
SLIM, LOW-SIGHT LINE - REPRODUCTION 11MM
1.5 U VALUE
4mm Low E Softcoat 4mm Heritage ‘Super Spacer’ Xenon Gas
3mm Restoration Glass (Reproduction Crown Glass)
SLIM, LOW-SIGHT LINE - THICKNESS 12MM
2.2 U VALUE
4mm Low E Hardcoat 4mm Heritage ‘Super Spacer’ Krypton Gas
4mm Clear
Listed Buildings
It should be noted that Listed Buildings are exempt from regulations as far as the insulation value of glazing is concerned. Part L of the buildings regulations do not apply to any windows, where the single glazing is being replaced by Treforest Glass Slim Low Sight-Line Double Glazed Units, for new or replacement windows in Listed Buildings.
Sash Windows
Window weights for sash and case require adjustment when single glazing is replaced with Treforest Glass Slim Low-Sight Line Double Glazed Units.
Most existing sash and case today will have cast iron weights. A corresponding length of lead weight of approximately the same diameter or size as cast iron is around twice the weight of the cast iron. By replacing with lead ensures that the weight is the same length approximately and therefore the sashes will have the same amount of opening travel.
Calculation
1mm thickness of glass (1 metre x 1 metre) 1m2 weighs 2.5Kg.
Example
Unit Construction 4mm Glass/4mm Cavity, gas/4mm Glass
Calculation 1000mm x 1000mm = 1m2 x 8 (4 + 4) x 2.5kg = 20Kg.
To calculate the overall weight of sash including the frame multiply the glass thickness x 2.67Kg as a rough guide.
Treforest Glass are a Company with a difference. There are lots of glass companies out there, but we go that extra mile to ensure our customers are armed with the best information, kept up to date with new products and changes to regulations, and will source any special requirements you may have. We produce quality products at reasonable prices, and our service is second to none.
If you have any queries regarding this product, or any other products, please contact our Technical Sales and Marketing Manager Debbie Wise on 01443 841313 Ext. 212 or Mobile: 07943655799 or our General Manager Terry Potter on 01443 841313 Ext 213