Verified by manufacturer over a year ago
Energy 65/41, double glazing
Range of glazing for windows that blocks out excess incoming heat while maintaining a high level of thermal insulation and letting plenty of daylight in.
Residential buildings and homes.
Range of glazing for windows that blocks out excess incoming heat while maintaining a high level of thermal insulation and letting plenty of daylight in.
Features and benefits:
Energy 65/41: Solar protection combined with a high level of daylight and high thermal insulation.
Energy 65/42 S: Solar protection combined with a high level of daylight and high thermal insulation. Single-stock. Can be used annealed and heat-treated.
Energy 72/38: High solar protection combined with a very high level of daylight and high thermal insulation.
Energy 72/38 T: Heat-treated version of Energy 72/38. It can not be used annealed.
Color | Clear |
Material | Glass |
Uniclass | |
CAWS | H10/10 Patent glazing H10/115 Patent glazing H11/110 Curtain walling H13/115 Structural glass assembly L10/10 Wood windows L10/15 Wood windows L10/20 Steel windows L10/210 Wood windows L10/25 Aluminium windows L10/30 PVC-U windows L10/31 PVC-U windows L10/310 Steel windows L10/33 Proprietary windows L10/330 Aluminium windows L10/350 PVC-U windows L10/390 Proprietary windows L10/400 Composite windows L10/58 Secondary glazing system L10/580 Secondary glazing system L40/210 Putty-fronted single glazing L40/230 Bead-fixed single glazing – non-setting compound L40/250 Bead-fixed single glazing – tape and sealant L40/260 Bead-fixed single glazing – extruded gasket L40/310 Bead-fixed single glazing – tape, sealant and trim L40/330 Bead-fixed single glazing – capping L40/350 Bead-fixed single glazing – curing compound and trim L40/370 Bead-fixed insulating glass units – insert gasket sections L40/371 Bead-fixed insulating glass units – cellular adhesive/ mastic tape L40/372 Bead-fixed insulating glass units – loadbearing tapes/ synthetic rubber and sealant capping L40/380 Bead-fixed insulating glass units – solid bedding, outside bead L40/381 Bead-fixed insulating glass units – solid bedding, inside bead L40/40 Putty-fronted single glazing L40/410 Single glazing into grooves – extruded rubber/ PVC sections L40/430 Single glazing into grooves – non-setting compound L40/450 Single glazing into grooves – sealant capping L40/470 Zipper gasket glazing L40/490 Single-sided gasket glazing L40/50 Bead-fixed single glazing L40/530 Internal tape glazing L40/55 Bead-fixed insulating glass units – drained and ventilated bead L40/57 Bead-fixed insulating glass units – solid bedding, outside bead L40/58 Bead-fixed insulating glass units – solid bedding, inside bead L40/90 Internal tape glazing |
General requirements | Glass generally |
Standard | Manufacturer guidanceConsult manufacturer for details. |
Third-party certification | Cradle to Cradle Certified™ Silver. |
Pane arrangement | Double.Guidance for specification option: Coating position 2 unless stated otherwise. |
Overall thickness | 26 mm.Guidance for specification option: 6-16-4. 25 mm.Guidance for specification option: 6-15-4. |
Performance requirements | |
Fire performance | |
Integrity | Manufacturer's standard.Guidance for specification option: Consult manufacturer for details. |
Insulation | Manufacturer's standard.Guidance for specification option: Consult manufacturer for details. |
Radiation | Manufacturer's standard.Guidance for specification option: Consult manufacturer for details. |
Light | To EN 410:2011, Transmission: 65%; reflection: 24% (internal); 26% (external). |
Solar control | To EN 410:2011, Solar factor: 42%.; energy absorption:21%. |
Total shading coefficient | Manufacturer's standard.Guidance for specification option: Consult manufacturer for details. |
Thermal insulation | Manufacturer's standard.Guidance for specification option: Consult manufacturer for details. |
Sound attenuation | Manufacturer's standard.Guidance for specification option: Consult manufacturer for details. |
Impact resistance | Manufacturer's standard.Guidance for specification option: Consult manufacturer for details. |
Manifestation | Manufacturer guidanceInsert requirements. |
Unit build up | |
Inner pane | |
Glass type | Manufacturer's standard, clear (neutral). |
Thickness | 4 mm. |
Outer pane | |
Glass type | Manufacturer's standard, clear (neutral). |
Thickness | 6 mm. |
Cavity space fill | Argon (90%). |
Perimeter spacers | |
Requirement | 16 mm.Guidance for specification option: Standard. 15 mm.Manufacturer guidanceNote: Spacer size does not affect U-value. |
Material | Manufacturer's standard. |
Edge profile | Manufacturer's standard. |
Thermal transmittance (U-Value) | To EN 673, 1.0 W/m²K. |
Additional requirements | None. |
Processing | Not applicable. |