Kingspan GreenGuard GG300 achieves lower lambda

Latest News Thu, Oct 17, 2024 12:30 PM

Kingspan Insulation is pleased to announce that Kingspan GreenGuard GG300 boards now achieve a lower declared lambda value (thermal conductivity) of 0.033 W/mK (0.035 W/mK design thermal conductivity for inverted roof applications). This can allow project teams to achieve target U-values with slimmer constructions in specialist applications where insulation boards with high compressive strength are required.


The rigid extruded polystyrene (XPS) insulation boards have minimal water absorption and are resistant to ground moisture penetration. These properties, alongside their compressive strength of 300 kPa (tested to BS EN 826: 2013), makes them suitable for a range of demanding applications including inverted roofs, basements, car park decks and heavy-duty flooring.

In addition to the lower lambda value, the boards are also now available in a 180 mm thickness. This enhanced thickness can reduce the number of layers of insulation that may be required for an application, supporting faster installations. The use of Kingspan GreenGuard GG300 in inverted roof, floor and basement applications (selected thicknesses) is covered by BBA Certificate 22/6048.

The popular XPS insulation range also includes Kingspan GreenGuard GG500 and GG700 which achieve compressive strengths of 500 kPa and 700 kPa respectively when tested to BS EN 826: 2013. BIM objects for all Kingspan GreenGuard products can be downloaded using the Kingspan BIM Designer Software Tool available at www.kingspaninsulation.co.uk.

To support best practice when installing any Kingspan GreenGuard products, Kingspan Insulation can offer free onsite Product Awareness training from qualified technical experts. These sessions cover all aspects of best practice including an overview of suitable applications, support with handling and storage and practical advice on sitework and detailing. Sessions can be organised by contacting: technicaladviceservice@kingspaninsulation.co.uk

Kingspan GreenGuard boards are produced on a specialist line with a 100% reclaimable polystyrene waste stream at Kingspan Insulation’s Selby (North Yorkshire) facility. The boards are manufactured under a management system certified to ISO 9001: 2015 (Quality management systems), ISO 14001: 2015 (Environmental Management Systems), ISO 45001: 2018 (Occupational Health and Safety Management Systems), ISO 50001: 2018 (Energy management systems) and ISO 37301: 2021 (Compliance management systems).

Featured News

Specification news
BRE announces BREEAM Awards 2026 winners

BRE has revealed this year’s BREEAM Awards winners, recognising sustainable...

Read More >>

Specification news
Fully tested, inside to out and outside to in

GypLyner Xternal is fully tested to BS EN 1364-1 as a complete through-the-wall...

Read More >>

BUILDING PRODUCT LIBRARY - LATEST BROCHURES

Flooring Collection 2026 Brochure

Flooring Collection...
By Gerflor

Download Now >>

Housing Brochure Brochure

Housing Brochure
By Gerflor

Download Now >>

CSR Report 2025 Brochure

CSR Report 2025
By Gerflor

Download Now >>

Thomas Company Brochure Brochure

Thomas Company Broch...
By Thomas Panels and Pr...

Download Now >>

SCHOTT UK Ltd- Certificate of Approval Brochure

SCHOTT UK Ltd- Certi...
By SCHOTT UK Ltd.

Download Now >>

BUILDING PRODUCT DIRECTORY - LATEST PRODUCTS

Purlins & Sections
Purlins & Sections

Purlins & Sections for every projectOur range of cold rolled purlins and structural sections...

Read More >>

Composite Systems
Composite Systems

Our composite systems combine an external sheet, insulation core and internal liner in a single...

Read More >>

TPP 1000-32 Reverse
TPP 1000-32 Reverse

TECHNICAL: LOADSPAN TABLES AND DIMENSIONSOur profiled sheet load/span tables provide guidance on the...

Read More >>

CONSTRUCTION VIDEOS - LATEST VIDEOS

Fortitude™ Steel Railing Systems: Adjustable Off-the-Shelf Balustrade Guide
Fortitude™ Steel Railing Systems: Adjustable Off-the-Shelf Balustrade Guide

Fortitude Steel Railings and Balustrades are one of the most versatile, off-the-shelf, steel...

Watch Now >>

Pro-Railing® Stainless Steel Handrail Systems: 6 Modern Balustrade & Glass Railing Solutions
Pro-Railing® Stainless Steel Handrail Systems: 6 Modern Balustrade & Glass Railing Solutions

Pro-Railing® – our Stainless Steel Handrail Component System with six stunning ranges to choose...

Watch Now >>

Why Professionals Choose Outdure QwickBuild | Aluminium Deck Frame Case Study
Why Professionals Choose Outdure QwickBuild | Aluminium Deck Frame Case Study

This case study explores a stunning designer terrace featuring the Outdure QwickBuild system,...

Watch Now >>