Triple glazed timber entrance doors for low energy & Passivhaus projects. The same design as the PERFORMANCE range but with 98mm profile and insulated frame option. U value as low as 0.56 W/m2K.
- Inward and outward opening entrance doors
- FSC® certified timber in redwood & oak
- FSC® certified Accoya timber drip rail for durability
- Dual compression seals for long-term airtightness
- Insulated frame option
- Panel door option insulated with vacuum insulated panels to give a whole door U-value as low as 0.56 W/m2K
- 98 mm profile
- Complements the ULTRA window range
- Made exclusively for Green Building Store by our partners in northern Europe
Installation Gallery
Door style options (many others available)
Please see some sample styles above. If you can’t see the style you’re looking for, please get in touch, as everything we do is bespoke and made to your requirements.
Please note: Door panel options include standard flat, grooved or raised and fielded
Glazing & U values
Fully glazed door:
Whole door UD: 0.79 W/m2K Redwood
Whole door UD: 0.89 W/m2K Oak
Glazing U value Ug: 0.52 W/m2K
Triple unit: Argon fill 52 mm
Light transmission value: 74.1%
Fully panelled door:
Whole door UD: 0.83 W/m2K Redwood (Standard Kooltherm panel)
Whole door UD: 0.56 W/m2K Redwood (VIP panel option)
Whole door UD: 0.67 W/m2K Oak (VIP panel option)
Typical maximum sizes
Width: 1250 mm
Height: 2400 mm
Please note: For Part Q and Secured By Design items, there may be size restrictions. Please get in touch to discuss.
Test results
Air Permeability BS EN 12207: 600 Pa Class 4
Water tightness BS EN 12208: 200 Pa Class 5A
Wind load BS EN 12210: 1200 Pa Class C3
Exposure category BS 6375-1: 1200
* U values calculated for standard single doorset 1230 X 2180
Glazing Options
Redwood Colour Options
Oak Timber Stains
Handles