Secret-fix Roof
Panel Systems



Trapezoidal Roof Panels

Trapezoidal Secret-Fix DR is ideal for all applications where the roof pitch is 1.5º or more after deflection, while Trapezoidal Secret-Fix DRC is suitable for curved roofs with a minimum radius of 150m

1. High performance coatings, wide range of colours
2. LPCB approved
3. Integrates with Kingspan Day-Lite Trapezoidal products and other ancillary products
4. Available in lengths of up to 29m
5. Compatible daylighting & fabrications

Dimensions, Weight & Thermal Performance

Core Thickness (mm) 40 50 60 80 100 115
Overall Thickness (mm) 75 85 95 115 135 150
U-Value (W/M²K) 0.46 0.38 0.31 0.25 0.21 0.18
Weight kg/m² 0.5/0.4 Steel 10.0 10.5 10.9 11.8 12.7 13.4

System Accessories & Services

Dedicated Technical Support is available throughout the building cycle, pre- and post-manufacture.
Contact us for complimentary services including: U Value/ Condensation risk calculation, project specific NBS specifications, bespoke construction detail, advice on fire & acoustic performance, panel spans, fastener & roof drainage calculations, optimised lighting designs, building energy modelling & CITB-backed Installation Training.

Technical Information

Kingspan Insulated Panels Systems Guide (Product Brochure)

Kingspan RW Trapezoidal_Roof Secret-Fix Datasheet

  • Profile: Trapezoidal
  • Fixing details: Secret-fix appearance created by elevated and capped fasteners clipped on site
  • Metal type: Steel
  • Colours: Kingspan XL Forté (Symphony / Vivace / Crescendo) and Kingspan Spectrum (Solid / Metallic / Diamond)
  • Application: Pitched roofs of 1.5° or more and curved roofs with a minimum radius of 150m
  • Lengths: From 1.8m to 29m
  • Cover width: 1000mm
  • Environmental rating: May be Green Guide A+ rated, subject to project specific assessment
  • Fire rating: LPCB approved
  • Air Leakage: 3m3/hr/m2 airtightness certainty at 50Pa
  • Product compatibility: Integrates with Kingspan Day-Lite Upstand, Kingspan Safety solutions and Kingspan Roof Mounted PV System
  • Seals: Factory-applied anti-condensation tape to both sides and site-applied end lap sealant

The external and internal faces of the panel to be Class 0 in accordance with the Building Regulations when tested to BS 476: Part 6: 2009 and Part 7: 1997. The panel is rated SAA when tested to BS 476: Part 3: 2004.
This FIREsafe system has passed all the requirements of LPS 1181: 2005: Part 1: Issue 1.1, ceiling lining tests by the Loss Prevention Certification Board (LPCB) certified to LPS 1181 Grade EXT – B (Certification pending for 115mm core) and achieves periods of fire resistance EXT-A. FM approval to FMRC 4880 & 4881 Class 1 fire classification, for unlimited height wall applications.

This ECOsafe system may achieve a Green Guide A+ rating and is subject to project specific assessments.

External Coating Brochure

Kingspan External Colour & Coating Brochure 2017

Kingspan Insulated Panels introduces a new guarantee scheme - the Ultimate Panel Guarantee. In a single unique package, it covers the performance of insulated panels and ancillary products in the following areas:

  • Coating performance - up to 40 years
  • Fire performance - up to 25 years
  • Thermal performance - up to 25 years
  • Structural performance - up to 25 years
  • Acoustic performance - up to 25 years

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