800 x 1800 mm insulated upstand for flat roof skylight 800 x 2500 designed for both internal and

designed for both internal and external installations

The silicone sealant provides a watertight seal that combats weather extremes

Transform your space with modular skylights

Exceptional Durability: Made from chipboard wood

These innovative walkable skylights seamlessly integrate into your home

800 x 1800 mm insulated upstand for flat roof skylight 800 x 2500 designed for both internal andExplore our Insulated Builder's Upstand, perfect for flat roof skylight installations. This upstand is designed to enhance thermal efficiency and ensure superior structural durability and weatherproofing without specific insulation materials mentioned. Key Advantages: Enhanced Thermal Efficiency: Helps maintain a comfortable indoor environment and reduces energy costs by minimising heat transfer. Exceptional Durability: Made from chipboard wood, our