01Sliding or bi-folding doors?→02Steel or aluminium internal doors?→03What U-value do I actually need?→04Rooflights: falls, sizes and what goes wrong→05PAS 24 and Secured by Design, in plain terms→06Sash windows in a conservation area→07Triple glazing, acoustic glass and traffic noise→08How steel internal doors move light through a house→
Reference
Standards and numbers
- Security
- PAS 24 · Secured by Design
- Weathertightness
- BS 6375
- Overhead glazing
- BS 5516-2
- Thermal performance
- Uw from 1.0 W/m2K
- Acoustic performance
- 44 dB with triple glazing
- Slim-sliding
- 20 mm interlock, leaf to 3000 x 3200 mm, Uw 1.1
- Bi-folding
- 52 mm sightline, leaf 1200 x 2700 mm, Uw 1.3
- Casement and sash
- 48 mm sightline, to 1400 x 2400 mm, Uw 1.2
- Steel internal
- 25 mm sightline, leaf to 1100 x 2600 mm
- Frameless rooflight
- Structural silicone, to 2500 x 4000 mm, Uw 1.0, minimum 5 degree fall
- Colours
- 213 RAL colours plus anodised