Wood-aluminum roof window FWP P50 APMX

sashtriple-glazedanthracite

Overview

• Combined roof window and access/escape hatch for pitched roofs, providing roof access, daylight and ventilation in one solution.
• Solid vacuum-impregnated pinewood construction with aluminium external cladding in anthracite (RAL 7016).

Main benefits

• Safe and convenient roof access: side-hung sash supported by gas springs, enabling easy passage for inspections, gutter cleaning and equipment installation.
• High acoustic performance: sound reduction index Rw = 38 dB (acoustic film + laminated inner glass).
• Thermal performance with P50 glazing: 44 mm triple-glazed unit; Uw = 1.1 W/m²K when installed with the dedicated Thermo flashing (EHV-AT Thermo flashing).
• Low-maintenance outer glass layer reducing dirt adherence and cleaning frequency.
• Durable safety glazing: toughened outer glass and laminated inner glass (P2A); external toughened glass covered by hail-resistance warranty.
• Universal sash orientation: available for left or right opening (right-hand supplied as standard).

Product details

The FWP P50 APMX is a side-hung escape/access roof window designed for safe rooftop access while maintaining thermal and acoustic comfort. The sash is supported by gas springs and equipped with a PVC protective strip to shield wooden components during use. External cladding is anthracite aluminium for weather resistance and a minimalist aesthetic; interior finish is vacuum-impregnated pinewood coated with clear acrylic lacquer.

Key features

• Glazing unit: P50 — 44 mm triple glazing (toughened outer glass, laminated inner glass P2A, argon fill, acoustic film).
• ThermoPro insulation technology for improved year-round thermal comfort.
• topSafe reinforced construction for enhanced security.
• Easy-maintenance outer glass layer (self-cleaning effect).
• Environmentally friendly materials: FSC-certified wood and water-based varnishes.

Installation notes

Flashing is required for correct installation; the window uses the same flashings as other roof windows and can be combined aesthetically. Installation pitch range: 15°–55°. Sash opening direction can be selected before installation (right-hand supplied as standard).

Mandatory and recommended products for installation

• Appropriate flashings selected according to roof type and installation details — required for correct waterproofing and thermal performance.

Technical specifications

• Commercial size (W × H): 55 × 78 cm
• Window frame clear opening width: 464 mm
• Window frame clear opening height: 686 mm
• Window sash clear opening width: 369 mm
• Window sash clear opening height: 591 mm
• Window reveal clear opening width: 495 mm
• Window reveal clear opening height: 719 mm
• Construction type: Access hatch (side-hung)
• Interior colour: Natural pine wood
• External cladding colour: Anthracite RAL 7016 (aluminium)
• Window material: Vacuum-impregnated pinewood
• Cladding material: Aluminium
• Lacquer: Acrylic clear; coats: 2
• Glazing unit: P50 — 44 mm triple-glazed; toughened outer glass; laminated inner glass (P2A); argon fill; acoustic film
• Thermal transmittance Uw: 1.1 W/m²K (with dedicated Thermo flashing)
• Number of seals: 3
• Thermo technology: thermoPRO
• Airtightness (air permeability): Class 4
• Sound reduction index Rw: 38 dB (Ra1 = 37 dB; Ra2 = 35 dB)
• Wind load resistance: Class C4
• Impact resistance: Class 3 — 450 mm
• Watertightness: E900
• Handle model: GREENVIEW SILVER; number of handles: 1
• Opening method: side (right by default); control: manual; solar power: no
• Installation depth: J, N, V (suitable depths)
• Installation location: battens
• Roof pitch (min–max): 15°–55°
• Product weight: 25 kg
• Packaging dimensions: W 0.57 m × L 0.85 m × H 0.165 m; packaged and strapped for transport