INSUL - predicting sound insulation
A quick & accurate tool for predicting the sound insulation in walls, floors and ceilings.
Learn more Contact UsLatest News
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Release 9.0.24
INSUL Release 9.0.24, May 2022, is now available. This update com...
03 June 2022 Read More -
INSUL support in Costa Rica
We are very pleased to welcome Fluctuum as an INSUL distributor a...
09 May 2022 Read More -
macOS Monterey support update
We are pleased to confirm that INSUL operates on macOS Monterey (...
02 March 2022 Read More
System overview
About INSUL
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.

Technical information
Development on INSUL started in the 90's 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 20 to 25 years.
INSUL can be customised for particular materials (for instance a particular manufacturer's plasterboard).

Download INSUL
You can download a trial version of INSUL to evaluate for yourself.
Should you decide to purchase INSUL you may contact Marshall Day Acoustics Ltd, or one of our distributors.