Kingspan Kooltherm K5 External Wall Insulation Board 1200mm x 600mm

Kingspan Kooltherm K5 External Wall Insulation Board 1200mm x 600mm

Installation Guide for Kingspan Kooltherm K5 External Wall Insulation Board

Installing the Kingspan Kooltherm K5 External Wall Insulation Board is a straightforward process that enhances the thermal efficiency of residential, commercial, and industrial buildings. By following these step-by-step instructions, you can ensure a high-performance insulation system that delivers on energy efficiency, sustainability, and compliance with safety standards. This guide is designed to be accessible for professionals, including architects, builders, and contractors, emphasizing the importance of precision and care at every step.


1. Surface Preparation: Begin with a clean, dry wall surface. It's crucial that the area to be insulated is free from debris, moisture, and any irregularities. Accurate measurement of the wall dimensions is essential to determine the amount of insulation material needed. Ensuring a debris-free surface enhances the adhesive properties and overall effectiveness of the insulation.

Cutting to Size

2. Measure and Cut: Using a fine-tooth saw or sharp knife, cut the Kingspan Kooltherm K5 boards to the required sizes. Measure and mark the insulation board carefully before cutting to ensure precision. A clean cut ensures that the boards fit snugly against each other and the wall, minimizing thermal bridges and maximizing insulation efficiency.

Applying Insulation

3. Positioning the Board: Position the K5 board against the wall, ensuring a snug fit. It's important to start from one edge and work your way across to maintain alignment and ensure that the boards are securely fitted against the wall without gaps.

Securing Insulation

4. Adhesive Application: Use a suitable adhesive to bond the boards to the wall as per the manufacturer's instructions. Apply the adhesive evenly across the back of the board to prevent air pockets. For extra security, particularly in areas subjected to high wind loads, mechanical fixings may also be used.

5. Sealing Joints: To ensure maximum thermal efficiency, seal the joints between the insulation boards using a compatible tape or sealant. This step is crucial in preventing thermal bridging and maintaining the integrity of the insulation layer.

Finishing Touches

6. Waterproofing and Cladding: For areas exposed to moisture or outdoor conditions, apply a waterproof finish or cladding over the insulation. This protects the insulation material from the elements and extends its lifespan, ensuring that it continues to perform at its best.


What makes Kingspan Kooltherm K5 unique? Kooltherm K5 stands out for its exceptional thermal performance, lightweight design, and ease of installation. It is suitable for a wide range of environments, offering superior insulation with a minimal thickness.

How does it contribute to energy efficiency? By providing a high level of thermal resistance, Kooltherm K5 reduces heat loss through walls, leading to lower heating and cooling costs and contributing to a more energy-efficient building.

Is Kooltherm K5 environmentally friendly? Yes, it is manufactured with a commitment to sustainability, using materials that have a low impact on the environment. It also helps reduce the carbon footprint of buildings by improving energy efficiency.

How do I choose the right thickness? The thickness required depends on the specific thermal performance targets for your project. Consult the Kingspan technical guidance for recommendations on selecting the appropriate thickness for your needs.

Where can I purchase Kingspan Kooltherm K5? Kooltherm K5 is available for purchase at our online shop. Visit to find the right insulation solutions for your project.

By following these steps and guidelines, you can ensure the effective installation of Kingspan Kooltherm K5 External Wall Insulation Board, providing your project with a high-quality, durable insulation solution that meets the demands of modern construction standards.