Topspan Insulated Roof Deck

Topspan Insulated Roof Deck

Topspan insulated roof deck combines a structural deck and metal top sheet in one product

The panels are suitable for zinc, stainless steel and aluminium standing seam waterproofing systems and single-ply membranes. 
  • ​Suitable for frame-to-frame spanning of up to 8 metres subject to roof loadings
  • Reduces need for secondary steel
  • Suitable for flat, low pitch and curved roof applications
  • Acoustic performance - Topspan panels have a predicted single-figure weighted sound reduction Rw = 27dB
  • Lifetime insulation continuity, thermal performance and airtightness (less than 3m3/hr/m2) certainty

Technical & Downloads

Core Thickness (mm) 66  102 126
U-Value (W/m2K) 0.25 0.18# 0.15#
Weight kg/m2 20.4 21.8 22.8

The recommended roof U-values are dependent on the method chosen:
Overall Heat Loss Method ≤ 0.25 W/m²K
Elemental Heat Loss Method ≤ 0.20 W/m

Colours and Coatings

Available in steel.

External weathersheet options: Kingspan CLEANsafe 15 bright white (standard).  Internal Profile deck sheet: Kingspan CLEANsafe 15 bright white (standard).

External: galvanised or Kingspan CLEANsafe 15.

CAD details

Kingspan Topspan Insulated Roof Deck CAD PDF

Kingspan Topspan Insulated Roof Deck CAD DWG

Kingspan Topspan Roof Deck Data Sheet

Fire Performance

The external and internal faces of the panel to be Class 0 in accordance with the Building Regulations when tested to BS476: Parts 6: 1989 and Part 7: 1987.                                     
The system has passed all the requirements of LPS1181: 2003: Part 1: Issue 1, ceiling lining tests.

Insurer Approvals

  • LPS 1181 Part 1: Issue 1, series of fire growth tests for LPCB approval and is certified to LPS 1181 Grade EXT-B 
For all our LPCB approvals, please visit RedBookLive by clicking here 
For all our FM approved roof systems, please visit RoofNav by clicking here 


Planet Passionate
Planet Passionate
Through our new Planet Passionate 10-year groupwide sustainability programme, we aim to make significant advances in the sustainability of our business and of our products.