Reversible H

All Timber Windows Norfolk Window products are manufactured to the highest quality, and have 60 Years+ Service Life, under Low Maintenance regime up to 80 in less exposed areas. When you choose our high specification Timber Windows, you can be sure that they will provide Style and Endurance for years to come. Due to the modern manufacturing process and the Service Life, TWN’s Windows are Carbon Negative. Our products are designed to save money and CO², whilst meeting and Exceeding, the Energy Efficiency Standards in the UK Building Regulations Recommendations.

Available in Hardwood, Softwood and Laminated Timber, the H Window is a High Performance top turn Fully Reversible Window. Proven in over 40 years of use in Scandinavia the H Window provides the following:

  •     Opening sashes do not project into room
  •     Friction-free hinges for easy operation and cleaning
  •     Counterbalanced hinge geometry ensuring all sash sizes are easily handled even by people of reduced mobility
  •     Tested to BS7950
  •     Fully Secured by Design compliance
  •     Outstanding foul weather performance to BS6375 parts 1 and 2
  •     BM TRADA Q Mark for High Performance

Technical Details

       U Value                        Glass                     Thickness (mm)

  •        1.3                                DG                               26
  • FSC & PEFC Softwood
  • Hardwood (Sapele)
  • FSC Laminated Softwood
  • Standard SBD
  • Georgian Bar / Glazing Bar
  • Bay Window
  • Top / side hung