Upstands for Flat Roof

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Dimension Upstand
  • Size 300 x 300 mm
  • Weight 10 kg
Skylights are a great choice for everyone—whether you're a homeowner aiming to cut heating costs or a contractor seeking a more efficient installation. And nothing promotes our products better than the satisfaction of our delighted customers.

Invest in Uncompromising Roofing Performance.

This isn't just an insulated upstand; it's an engineered solution designed to elevate your roofing projects with unmatched thermal efficiency, enduring durability, and streamlined installation. Experience the peace of mind that comes with a truly robust and energy-efficient building envelope.

Weather-Shielded Precision: Forget compromises. Our upstand delivers a meticulously engineered, airtight, and weatherproof seal, effectively banishing water ingress and air leaks, safeguarding your interiors for the long haul.

Adaptability, Redefined: Built for cold roof applications, this upstand offers universal compatibility with all roof covering types—no more wrestling with mismatched components. We've simplified your project with unparalleled flexibility.

Installation, Simplified and Perfected: Pre-measured, precision-cut components eliminate guesswork and ensure a flawless fit, dramatically reducing installation time and labour costs. Efficiency isn't just a feature; it's built-in.

Thermal Excellence, By Design: Achieve a superior U-value of 0.63 W/m²K with our integrated 40mm core cavity, minimizing heat loss and translating to tangible energy savings – a wise investment for the future.

Built to Endure, Crafted with Integrity: Constructed from 18mm Weather and Boil Proof (WBP) hardwood structural plywood, rigorously tested to EN13986 and EN12871 standards, this upstand is engineered for structural integrity and unwavering longevity, even in the most demanding environments.

Sustainability, Woven In: Committed to responsible construction, we utilize materials that adhere to EN314-2 Class 2 glue standards and EN636 Class 2 ratings, are suitable for humid conditions, and meet E1 European low emission standards, ensuring a healthier and more sustainable build.

Specifications: Engineered for Performance

  • Thermal Core: 40mm cavity for optimal insulation.


  • U-Value: 0.63 W/m²K – significant energy efficiency.


  • Structural Integrity: 18mm WBP Hardwood Structural Plywood (EN13986, EN12871 compliant).


  • Humid Condition Resilience: EN636 Class 2 rated.


  • Universal Application: Cold roof compatible and adaptable to all roof coverings.


  • Precision Sizing: Pre-measured for seamless installation.