With extensive drop down menus to select materials, and simple choices for construction details you can quickly evaluate different constructions. INSUL shows a picture of your construction and a graph of the 1/3 octave TLs.
NEW FEATURES (version 7.0)
INSUL undergoes continual development. The new version includes triple panels, a powerful new materials editor (with regional and user databaases), an auralisation feature and a guide to flanking limits.
Development on INSUL started more than 10 years ago, based on research in the USA by Ben Sharp and others. It has gradually developed into a unique tool that incorporates the best of many research papers published over the last 15 years. INSUL can be customised for particular materials (for instance a particular manufacturer's plasterboard).
Of course such a program is of no use if it doesn't actually predict the performance of walls accurately. We have prepared a number of comparisons between predictions and measurements to give some idea of INSUL usefulness. A summary of a study on overall accuracy is shown on this page
Read the recent Institute of Acoustics article on INSUL