Topdek membrane roof system, Kingspan Insulated Panels New Zealand

Topdek Membrane
Roof System

System Overview

Topdek roof panels on Costco Eurpoean Distribution Centre, Crick, UK

Single Ply Membrane Roof System:
KS1000 TD

Topdek is a single component, factory pre-engineered roof deck, comprising a high performance single-ply PVC membrane with insulation and a trapezoidal steel deck. 
1. Suitable for flat and pitched roofs above 1:80 (0.72°) after deflection.
2. Suitable curved roof applications with a convex curve (45m radius) and concave curve (50m radius).
3.  Topdek can eliminate the need for valley-hip and boundary wall gutters.
4. Available in lengths of up to 11.8m.
Topdek Flat Roof Product Render, Kingspan Insulated Panels New Zealand

Technical Details

Product Features KS1000 TD

Profile Flat single-ply PVC membrane, with standing seam aesthetic optional
Fixing Detail Self-coring fasteners through bottom tray
Metal type Steel internal liner/1.5mm PVC external membrane liner
Application 1.8° minimium pitch. Curves to 45m radius (convex). Curves to 50m radius (concave)
Lengths From 2m to 11.8m
Cover Width 1000mm
Product Compatibility      Integrates with Kingspan fall protection solutions

Topdek Flat Roof Product Render, Kingspan Insulated Panels New Zealand

The R-values / U-values have been calculated using the method required by the appropriate National Building Regulations.

Core Thickness (mm)
71 91 100 120

Overall Thickness (mm)
109 129 138 158

R-Value (m2.K/W)
4.00 5.00 5.55 6.67

U-Value (W/m2K)
0.25 0.20 0.18 0.15

Weight (kg/m2) 0.5 steel / 0.4 steel
12.1 12.9 13.3 14.1

The 'engine' of a panel system is the insulation core. Kingspan's unique PIR insulation formula creates a superior closed cellular core fundamental to the panel system in terms of thermal performance. This combined with the robust engineering of the Kingspan Topdek roof panel, with its steel facing, membrane and superior joint design, make the Kingspan roof unparalleled as a weather-resilient, air-tight and low energy resistant solution.
  • Internal Spread of Flame - Group 1-S
  • Certified FIREsafe PIR Core
  • FM 4771 – Class 1 Roof Panels Systems
  • Green Guide A+ certified
  • Superior R values
  • Durability – Long term performance
Outer membrane:
  • Light Grey

Inner steel liner:
  • Standard white liner
  • High humidity Kingspan Aquasafe White
The Kingspan PIR core, has been tested and passed the requirements of AS1366.2   

The ‘internal spread of flame’ is classed as Group 1-S for a firewall specification.
LPCB Certificated PIR

LPCB 1181.1

The KS1000 TD roof panels have a Green Guide A+ rating as per the BRE Global 'The Green Guide to Specification', Green Guide 2008 ratings. Green Guide element no. 81255001.
In recognition of the many different demands that are placed on construction professionals today, Kingspan Insulated Panels guarantees not just one aspect of its products but all of the key performance areas.

Kingspan guarantees the coating, structural, durability and thermal performance of a product. 

Kingspan Topdek roof panels are guaranteed for up to 15 years.


Kingspan Topdek KS1000 TD Datasheet

System Accessories & Services

We manufacture and support the complete roof and wall system including construction details (see CAD details above). Contact us for complementary services including: project specific specifications, advice on fire, thermal, condensation and structural performance along with review of bespoke construction details.
Flat Roof System Render

Featured Projects

Build Speed

Topdek reduces costly roofing delays by installing your steel deck, insulation core and weather membrane in a single operation. This means buildings become weathertight faster and installers spend less time on the roof helping improve safety and manage project costs.

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Kingspan Limited | 97 Montreal Street, Christchurch, New Zealand
Tel: 0800 12 12 80 or +64 (0)3 260 5530 | Email

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