Mendes External Thermal Primed Door - Devon Glazed in 2 Sizes

The Thermawood Grey Primed Devon External Door is a high-performance, thermally rated external door that combines traditional character styling with advanced insulated construction. Featuring an elegant arched panel design with a central obscure glazed unit, the Devon is ideal for front entrances where natural light and privacy are equally important.

Supplied grey primed (RAL 7038) as standard, this door is ready for final topcoat finishing to suit your exterior colour scheme.

The Thermawood Devon is engineered to deliver impressive energy performance, achieving strong U-values of approximately 1.32 – 1.36 W/m²K, helping reduce heat loss and improve overall building efficiency.

Features:

Its advanced multi-layer construction includes:

• XPS foam insulated core
• Structural LVL core with Meranti lipping
• Reinforced 0.2mm aluminium sheet layer within the door construction
• 3.6mm plywood outer layers
• 45mm overall door thickness
• This unique build makes the Devon significantly more stable and weather-resistant than traditional timber stile and rail external doors

The Devon features a centrally positioned glazed panel that allows natural daylight into your hallway while maintaining privacy.

The glazing specification includes:

• Frosted / obscure glazing
• Toughened safety glass
• Low-E coating with Argon gas filling for improved thermal performance
• Installed using glazing sealant and tape system for durability
• This ensures both insulation efficiency and long-term reliability in exposed conditions.

Key benefits:

• Enhanced resistance to movement and warping
• Increased structural strength compared to standard timber doors
• Suitable for installations without the need for a porch or canopy in many cases
• Finished in Grey Primer (RAL 7038) as standard, it provides a smooth base for final decoration