p41a - 400 Series

Outward Opening Alu-Clad

132.5mm laminated spruce timber outward opening window with external aluminium cladding and triple glazing.
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Our highest performing outward opening product, this triple glazed window delivers truly outstanding performance and is s available in two versions - a certified passive house product and a standard non-certified version.

The certified version uses Spruce as the material for the timber frame and has an even higher glass specification. This combination offers ultimate performance.

The external aluminium cladding ensures that the timber frame is protected from the elements and helps improve longevity whilst requiring minimal maintenance.

The technically advanced sprayed coatings give the timber enhanced durability and a superb finish, while the aluminium cladding is polyester powder coated. Both the aluminium cladding and the timber frame are available in a full range of RAL colours. 

The triple glazed unit is a 50 mm unit with argon gas filling, warm edge spacer bar  and two panes of Low-E glass. Whole window U-Values are around 0.68W/m²K. 

      See the P41A in action

  Thermal Performance
U Value (typical) 0.68
  Sound Performance
Decibels (typical) 34db
  Security Performance
EN 14351-1:2006
Opening types Fixed pane, Top hung, Side hung, Fully reversible
Frame depth 132.5 mm
Whole window U-value 0.68 W/m²K
Glass U-value 0.47 W/m²K
Glass package 50 mm triple glazed, two panes Low-E, argon filled
Sound insulation 34 db
Air permeability Class 4 (EN 12207:2000)
Watertightness Class E1500 (EN 12208:2001)
Wind load Class 5C (EN 12210:2001)
Timber Colours RAL
Aluminium Colours RAL, IGP textured
Data sheet p41a.pdf
Drawing p41a.dwg
  Thermal Performance
U Value (typical) 0.68
0.6 0.8 1.0 1.2 1.4 1.6 1.8
  Sound Performance
Decibels (typical) 34db
  Security Performance
EN 14351-1:2006

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