External Door

When considering environmental issues, door specifications may not immediately be high on the agenda. The "typical" traditional door designs that have served well for over half a century are still freely available and widely installed.

However, the specifications of these traditional designs, increasingly, do not satisfy the requirements for more stringent performance or a preference for the use of sustainably sourced materials.

Internal doors

Whilst internal doors make little contribution to energy efficiency, they can contribute environmentally. Products are now available which carry full Chain of Custody or general environmental certification.

The most recognisable of these is arguably FSC, but other CPET approved schemes such as PEFC are also available.

Choosing an external door

For external applications, thermal efficiency is now the key requirement within the Building Regulations.

Generally, a basic 44mm thick timber panelled door, of a traditional design will have a U-value of around 3.0W/m2K. This product can in most instances be used in replacement or repair work. However, improved efficiency can be made by changing from solid timber doors to doors with thermal foam in-fill and/or adding Low E glazing units.

Heat Loss From Doors

Trade Tips

  • Code points are available for responsibly sourced materials when adhering to the Code for Sustainable Homes.
  • Design your building using standard door sizes to save time and costs on special orders.
  • Time and money can be saved on-site by using complete door sets.

Homeowner Benefits

  • Jewson have a fantastic range of internal and external doors to suit every home and budget - there is a great range of ironmongery and security too!
  • Quality external doors increase the security of any property and can reduce heat loss.
  • Do your bit for the environment and buy responsibly sourced doors.

 Jewson has everything you'll need...

  • Special orders; Your local Jewson branch has a full range of doors to choose from and can provide you with all the technical information you need. We offer a full bespoke and special order service and a wide range of door fixings and quality furniture.
  • Catalogue and displays; Our branches have thousands of doors to choose from including: interior, exterior, patio and garage. See our displays or pick up a catalogue.