Double Heavy Duty Hinged Unit - Low Threshold - Secondary Glazing Unit
With 60 mm sightlines and no transoms or mullions, our hinged units offer an unobstructed view beyond the window. The unit features single handle operation and multi-point locking. Side and base opening also available.
The same features and spec as the low threshold heavy duty hinged unit, but with two panels instead of one. Ideally paired with French doors. Locking variation as standard.
No subframe along the bottom of the unit allows the primary window to pass through the secondary unit if required.
Features and benefits:
- Slim, unobtrusive aluminium profile.
- Easy opening due to internal gearing.
- Multi-point locking for enhanced security.
- Improved noise and thermal installation.
- Suitable to have bevelled timber subframe to fix into bays/splayed reveals.
- Can be coupled or stacked with other traditional units in the range to treat large areas of glazing or long runs of windows.
- Can be supplied with restrictors.
- Glazing options: 4 mm in the Classic range.
- Glazing options: 6–10.8 mm in the Enhanced range.
- 28 mm DGU also available as part of our Enhanced range.
- Choice of timber subframes.
- Pre-drilled and countersunk for face fix and reveal fix through timber. Reveal fix through aluminum is self-drilled.
- Q-Lon seal to front, woolpile seal to back.
- Gasket colour – Black as standard, white also available upon request.
- PVC-U trims supplied for the face of the units to create a neat, clean finish.
- Standard colour 9003 Satin White.
Specification Details
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Granada Secondary Glazing is consulted before specifying.
Physical Properties
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| Configuration (?) | Bottom orientation , Left hand orientation , Right hand orientation , Top orientation | |
| Custom Sizes Available (?) | ||
| Hinge Type (?) | Butt hinges , Egress hinges , Invisi-hinges | |
| Lock Type (?) | Locking espagnolette , Multi-point lock | |
| Shape (?) | Rectangular , Square | |
Size & Weight
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| Glass Thickness (?) | 4 - 28 mm | |
| Height (?) | 0 - 2400 mm | |
| Width (?) | 0 - 1400 mm | |
Technical
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| Features (?) | 28 mm DGU also available as part of our Enhanced range , Can be coupled or stacked with other traditional units in the range to treat large areas of glazing or long runs of windows , Can be supplied with restrictors , Choice of timber subframes , Easy opening due to internal gearing , Glazing options: 4 mm in the Classic range , Improved noise and thermal installation , Multi-point locking for enhanced security , Pre-drilled and countersunk for face fix and reveal fix through timber , PVC-U trims supplied for the face of the units to create a clean finish , Q-Lon seal to front , Standard colour 9003 Satin White , Suitable to have bevelled timber subframe to fix into bays/splayed reveals , Unobtrusive aluminium profile , Woolpile seal to back | |
| Operation (?) | Manual | |
| U-value (overall) (?) | 1.5 W/m2k | |
Commercial
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| Accessories (?) | Acoustic trickle vent , Restrictors , Standard trickle vent | |
| Application (?) | Internal low threshold , double heavy duty hinged secondary glazing window unit | |
| Bespoke (?) | ||
| Typical Building Sector (?) | Commercial , Domestic | |
Materials & Finishes
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| Colour (?) | Black , White | |
| Finish(es) (?) | Powder coated | |
| Glazing Type (?) | Double Glazed , Toughened Glass | |
| Material (?) | Aluminium | |
Certifications & Ratings
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| Acoustic Rating (?) | 52 Rw dB | |
| Standards (?) | BS 6206 , BS EN 12206-1 , BS EN 1474 , ISO 9001 | |
Similar Aluminium Secondary Glazing Products
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