UPVC roof window DMF DU8

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Short description
Modern flat roof window designed for flat roofs (pitch 2°–15°). The DMF DU8 provides high natural daylighting, year‑round thermal comfort and effective ventilation via a sash tilt (30 cm) operated with a control rod. Elegant flat glass with a black step gives a minimalist, contemporary look.

Key features

• Flat roof window DMF DU8, commercial size example: 60 × 60 cm
• Quadruple‑chamber glazing unit DU8 (dedicated for passive construction) with Uw = 0.64 W/m²K
• Internal P2A laminated glass for increased safety; external toughened glass with lifetime hail resistance warranty
• Manual opening using ZSD control rod (up to 30 cm sash tilt)
• Suitable for roof pitches from 2° to 15°; for pitches less than 2° use XRD-A angled base; for green/gravel/ventilated roofs use XRD or XRD/W bases
• Can be equipped with internal accessories and external awning blind to reduce solar heat gain

Construction and functionality
The window frame is made of white multi‑chamber uPVC profiles (RAL 9010) filled with insulating material for high resistance to moisture and easy maintenance. External cladding is black (RAL 9005). Durable construction resists deformation and moisture. The DU8 glazing unit is a multi‑chamber/super‑insulating package designed to minimise heat loss and ensure thermal comfort.

Performance highlights

• Heat transfer coefficient Uw = 0.64 W/m²K (selected size 60 × 60 cm with original installation accessories)
• Three seals for improved airtightness
• Airtightness class: Class 4
• Wind load resistance: Class C5/B5
• Impact resistance: Class 5 – 950 mm
• Watertightness: E1200
• Acoustic insulation Rw ≈ 33 dB

Use and installation
The DMF DU8 is an alternative to vertical windows where those cannot be applied. It is intended for installation on flat roofs with pitch between 2° and 15°. Installation on an additional XRD or XRD/W base raises the window above finishing layers for proper drainage on green, gravel or ventilated roofs. For increasing installation angle or pitches below 2° use the XRD‑A angled installation base.

Included / available equipment

• Standard set contents example: ZSD rod, manual actuator
• Available options: internal accessories, external awning blind; also available in automated Z‑Wave versions (separate product variants)

Technical data / specifications

• Commercial name: DMF DU8
• Commercial size (W × H): 60 × 60 cm
• External frame width × height: 820 × 820 mm
• Window frame clear opening (W × H): 517 × 517 mm
• Window sash clear opening (W × H): 476 × 476 mm
• Window reveal clear opening (W × H): 558 × 558 mm
• Frame material / colour: multi‑chamber uPVC, PVC white (RAL 9010)
• External cladding colour: Black RAL 9005
• Glazing unit: DU8 multi‑chamber glazing unit (quadruple‑chamber)
• Uw (selected size / DU8): 0.64 W/m²K
• Number of seals: 3
• Airtightness (air permeability): Class 4
• Wind load resistance: Class C5/B5
• Impact resistance: Class 5 – 950 mm
• Watertightness: E1200
• Acoustic insulation Rw: 33 dB
• Control system: Manual via ZSD control rod (standard); Z‑Wave / electric variants available separately
• Solar power supply / electric control (standard): No (manual standard)
• Set contents (example): ZSD rod, manual actuator
• Product weight: 47 kg
• Package dimensions (W × L × H): 0.91 m × 0.92 m × 0.28 m
• Suitable roof pitch (min.–max.): 2° – 15°