Scandinavian AS4 Passive

Composite - Scandinavian AS4 Passive Doors

The Scandinavian AS4 Passive door is predominantly designed to compliment our range of AS4 Passive House windows or simply where you require a door with the exceptional thermal properties. Available only as a composite (aluclad), outward opening door system with single and double door leaf designs. Constructed from engineered timber profiles with the benefit of a maintenance free external aluminium clad. Insulated panels, infill panels, transoms, mullions and glazing can be utilised to create your ideal door system without compromise. With the help of a 50mm triple glazed unit we are able to achieve an overall U-value of 0.7W/km.


  • Scandinavian quality & performance.
  • Engineered timber profiles.
  • Double Glazed = Overall U-Value 1.4W/m2K.
  • Sound insulation: Rw (C; Ctr) = 33db - Can be upgraded.
  • Supplied factory finished & glazed.
  • Fully customisable.
  • Matching windows, sliding doors, bifold doors available.


  • Scandinavian quality & performance.
  • Engineered timber profiles.
  • Triple Glazed = Overall U-Value 1.0W/m2K.
  • Sound insulation: Rw (C; Ctr) = 34db - Can be upgraded.
  • Supplied factory finished & glazed.
  • Fully customisable.
  • Matching windows, sliding doors, bifold doors available.

Features & Benefits:

Profile & Appearance

  • Available with a contemporary square profile only.
  • Aluminium clad externally for a maintenance free option.
  • Manufactured from slow grown engineered knot free pine, class A1-A3.
  • No visible finger joints in timber.
  • Other special timbers available upon request.
  • Slim consistent profiles..
  • Fully customisable with matching products available.
  • Supplied factory assembled, finished & glazed.

Thermal Efficiency & Weather Tightness

Officially tested and certified to ensure they really do keep bad weather outside. 

Scandinavian AS4 Passive - Triple glazed

  • Overall U-Value of 0.7W/m2K.
  • Resistance to wind load Class A3 (EN 12210:2001).
  • Water tightness 3A (EN 12207:2001).
  • Air permeability Class 4 (EN 12207:2000).
  • Acoustic performance tested at Rw=34dB. Further upgrades available.

A good U-Value does not mean a door keeps out the wind and the rain. Make sure you check out a doors weather test results before you buy.


  • High security as standard.
  • Multipoint locking espagniolettes.
  • ASSA hinges.
  • FIX espagnolettes.
  • ASSA or FIX handles.
  • ASSA or RUKO locks.
  • Concealed hardware.
  • Toughened glass used as standard.
  • Laminated security glass and specialist specifications optional.  


  • Available as a single door, double door, inward and outward opening.  Slave leafs and odd sized panels are available.
  • Please see the "Downloads" section below for design ideas.
  • Alternatively please send us a photo or sketch of your preferred design.

Wide Range Of Finishes

  • Class A1-A3 engineered slow grown timber - No wood knots, no visible finger joints.
  • All timber parts are vacum impregnated using GORI treatment prior to finishing.
  • None toxic water based finishes only.
  • Choose from over 200 RAL paint colours.
  • Wood stain finishes also available.
  • Dual colour finish available (different internal and external colours).
  • Marine protection available.