The Celotex Thermaclass Full Fill Cavity Wall 21 PIR Board, 1190mm x 450mm x 90mm, offers efficient insulation for full-fill cavity wall applications. This PIR board delivers excellent thermal performance with a low thermal conductivity of 0.021 W/m. K. Designed for easy instal... Read More
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The Celotex Thermaclass Full Fill Cavity Wall 21 PIR Board, 1190mm x 450mm x 90mm, offers efficient insulation for full-fill cavity wall applications. This PIR board delivers excellent thermal performance with a low thermal conductivity of 0.021 W/m.K. Designed for easy installation, these boards fit seamlessly within standard cavity wall tie spacing, ensuring a streamlined setup.
Featuring a low emissivity foil facing, this insulation improves energy efficiency and accommodates up to a 10mm residual cavity, allowing for flexibility in installation. It can also be used without a residual cavity, making it suitable for various construction needs. The boards are rigid yet lightweight, simplifying handling and installation.
The tongue and groove edge profile further enhances the installation process, providing a secure fit. However, with a Euroclass F classification for Reaction to Fire, this product is not suitable for use in external walls of buildings over 11 metres in height due to its flammability.
Please note:
Question:
Do the boards need taping
Answer:
The Celotex Thermaclass Full Fill Cavity Wall 21 PIR Boards have a tongue and groove edging, which means they are designed to fit together securely without the need for taping. However, it's always a good idea to follow any specific installation instructions provided by the manufacturer or consult with a professional to ensure the best results.
Question:
I have a cavity wall currently being constructed of fibrolite block externally and internally with Siberian larch finish - cavity is 100mm. If I fill cavity with this board will I achieve target of 0.18?
Answer:
The Celotex Thermaclass Full Fill Cavity Wall 21 PIR Board is designed to provide high thermal performance, but the overall U-value achieved will depend on multiple factors, including the other materials used in the construction of the wall and their respective thermal properties. We would recommend consulting with a qualified insulation specialist or structural engineer who can take into account all the components of your wall assembly to calculate the overall U-value.
Question:
Hi will I achieve .15 u value with block and render out side and thermalise inside with 100mm cavity
Answer:
The Celotex Thermaclass Full Fill Cavity Wall 21 PIR Board is designed to provide excellent thermal insulation. However, achieving a specific U-value like .15 will depend on a variety of factors including the overall construction of the wall, the type of block and render used, and the thickness of the insulation. To gain a more accurate understanding of the U-value you could achieve with this product, you may want to refer to the technical information provided by the manufacturer. The Technical Information document can provide detailed performance data. You can access it here: Technical Information.
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