Description
Kingspan Thermaroof TR26 150 mm Flat Roof PIR Insulation Board (2400 mm × 1200 mm, Pack of 2 - 5.76 m²)
Product Overview
Kingspan Thermaroof TR26 150 mm (2400 mm × 1200 mm) Flat Roof PIR Insulation Board is a high‑performance rigid thermoset polyisocyanurate (PIR) insulation board designed for flat roof applications (new‑build or refurbishment) incorporating mechanically‑fixed single‑ply (or similar) waterproofing systems. With its large board size and generous thickness, it offers excellent thermal performance and large area coverage while remaining compatible with modern flat‑roof build‑ups. The product has a declared thermal conductivity of 0.022 W/m·K.
Key Features & Benefits
- High‑performance rigid PIR core with declared thermal conductivity of 0.022 W/m·K across the TR26 range.
- Large board size 2400 × 1200 mm reduces the number of joints, improving installation efficiency and reducing the potential for thermal bridging.
- Compatible with most mechanically‑fixed single‑ply waterproofing systems and green roof systems for flat roof applications.
- Fibre‑free rigid thermoset insulation core with low‑emissivity composite foil facings on both sides, which resist water‑vapour transmission.
- Excellent compressive strength (typically exceeds ~150 kPa at 10 % compression) providing robust, load‑bearing performance.
- Suitable for fast‑track building programmes — the board is designed to be straightforward to handle and install compared to many other insulation types.
- Large coverage per pack (≈ 5.76 m²) with high thickness aids in achieving superior U‑values over large roof areas while maintaining fewer sheets.
Applications / Typical Uses
- Ideal for structural flat roof insulation in residential, commercial, industrial and public buildings where high thermal performance and large board coverage are required.
- Designed for use beneath mechanically‑fixed single‑ply waterproof membranes in warm‑roof systems.
- Suitable for both new‑build and refurbishment projects, particularly when board size and fewer joints are advantageous.
- Appropriate for use over concrete decks, metal decks or timber decks (subject to correct detailing and vapour control layer) in warm‑roof construction.
Installation & Handling
- Store the boards flat on a clean, dry, and level surface, and protect them from exposure to weather or site water before installation.
- Do not use boards that have become wet or damaged.
- Lay the boards in a staggered (break‑bonded) pattern so that long‑edge joints do not align across adjacent rows; joints should be lightly butted together.
- Boards may be mechanically fixed or adhered (depending on the deck type and waterproofing system) — the fixing method should correspond with the waterproofing manufacturer’s instructions.
- Ensure a suitable vapour control layer (or sealed deck) is in place beneath the insulation if required, and conduct a condensation risk analysis for each roof build‑up.
- After the insulation is laid, proceed with installation of the waterproofing membrane strictly according to the manufacturer’s instructions. Ensure compatibility with the insulation board.
- Insulation continuity must be maintained at parapets, upstands, penetrations and abutments to minimise thermal bridging.
- Because of the large board size (2400 × 1200 mm) and high thickness (150 mm), care should be taken when handling the boards during transport and installation to avoid damage to edges or facings.
Compliance & Certification
- Manufactured to the standard BS EN 13165:2012 + A2:2016 for factory‑made rigid PIR insulation boards.
- Declared thermal conductivity: λₙ = 0.022 W/m·K.
- Reaction to fire classification: Euroclass F (System 4 AVCP).
- Suitable for use in systems covered by third‑party certification (e.g., British Board of Agrément (BBA) Certificate No. 16/5332 for the TR26 range).
- Produced under ISO 9001 (Quality), ISO 14001 (Environment), ISO 45001 (Health & Safety), and ISO 50001 (Energy Management) management systems.
