Accurate U-value calculations for wall, roof and floor structures are a compulsory part of both today's building regulations and the Code for Sustainable Homes.
Having been unable to find an easy to use, low cost U-value calculating program that complies with BS EN ISO 6946 we decided to write our own in spreadsheet format.
easyU is capable of calculating accurate U-values (in accordance with BS EN ISO 6946) for structures made up of up to ten separate material layers including layers that are thermally bridged.
Simply select each material from a customisable list of fifty commonly used materials and enter each layer thickness, easyU will calculate the resulting thermal resistance and U-value.
(easyU will also calculate compensation for thermally bridged layers, air layers, roof spaces and corrections for air gaps and mechanical fixings)
There is a report page that presents the data and the U-value result for printing out.
Download a sample easyU Printable Report PDF file.
Please try this free demo version for evaluation
veiw easyU instructions and screenshots
The full version of easyU can be purchased for download below
easyU is an Excel spreadsheet file with multiple worksheets
Open with MS Excel or compatible spreadsheet program
(various free spreadsheet programs are available for download on the internet)
Enquiries to - Email: firstname.lastname@example.org