Find me Search Help Login Sites Contact Home About us Sustainability Products Services Case studies News and media Tools & resources Blocks U-Value calculator This easy-to-use interactive tool is designed to help calculate the thermal performance of varying combinations of insulation and blocks, including aircrete and aggregate blocks. The calculator takes into account wall configuration, internal and external finishes, insulations, as well as internal and external masonry leaf options, to give a more detailed assessment of the thermal performance of the wall proposed. Furthermore, images and descriptions for each aspect of the wall’s build provide extra clarity, with a final representation of the wall’s structure shown at the end of the process. Start U-Value calculator Back to top About us Careers Innovation Logistics Supply chain Health & safety Our company Our people Sustainability Products Aggregates Asphalt Blocks Building Products Cement Concrete Lime & Powders Mortar Packed Highways Pozament Sand Screed Soils Specialist Products Services Contracting Civil engineering Business partnership National Road Planing Asset management Asphalt2Go collect asphalt Collect concrete Minimix - concrete delivery Mobile concrete plants Safetydeck News & Media Latest news News Archive Media contact Video Customers & Suppliers Trucks for sale Contract hauliers CE marking Contractors database Policies & reports Modern slavery statement Tools & Resources Contact us Location Finder Help Downloads Connect Portal BIM Library Cookies policy Terms and conditions Terms of use Privacy statement Sitemap Tarmac © 2021