Frequently Asked Questions

Have you got a question? Have a look at our frequently asked questions below. Your question not there? Then please find call us on +44 (0)1902 385250. We’ll be happy to find your answer.

No, to achieve the rating specified, testing must be carried out on the system at an approved UKAS test facility.
Partitions are tested in a UKAS approved test house furnace to BS476 Pt 22, or to BS EN 1364. The best method is to reproduce the tested product on site by installing from slab to slab. This is not always possible, so fire barriers above suspended ceilings and under raised floors can be employed providing they meet certification. The partition certification is for the partition only.
To allow for soffit/slab movement, under building occupying use.
The recommended max ht for fully glazed frameless partitions is dependent on the thickness of the glass used, site access, protecting a drop ie guarding, dynamic loading and whether there is an FR requirement. True frameless glass systems start with a toughened glass thickness of 10mm. All glass used either toughened or laminated should be Class A safety glass.

Yes for Bi-panel and mono-block systems where pre-made factory panels and windows are
being installed.

No for cut on site systems where measurements for glass are taken after framework has
been installed.

This to a large extent depends on the type of usage of the premises. As a general rule most identifiable sound is transferred through cross walls and most sound transmission through cross walls, suspended ceilings, raised floors and doors. Requirements for levels or airborne sound resistance have steadily increased in recent years which is reflected in the majority of specifications for standard offices to be 40Rw(dB) or more for all partition walls. Acoustic ratings on partitions are conducted in laboratory conditions which cannot be reproduced on
site, therefore, a loss of up to 10% on the tested figure is to be expected when the system is installed. Best results are obtained when the system is fitted slab to slab.

Sound resistance in partitions is conducted in an acoustic chamber over 16 frequencies. This produces a test curve on a graph. In order to ensure that all manufacturers are proposing ‘like for like’ comparisons of products, the test house applies a BS standard curve to be the closest fit to the test curve. At the 500Hz frequency point the sound resistance level on the standard curve is taken which is the Rated Weighting.