Approved Document E
Approved Document E: Resistance to the Passage of Sound
This document specifies the acoustic performance requirements of ties suitable for use in separating walls (Type A ) and external walls (Type B) of new build dwellings.
Type A ties must have a measured dynamic stiffness of <4.8MN/m3 for the specified minimum cavity, at a standard density.
All Ancon ties which cross a cavity meet the requirements of Type B.
How the dynamic stiffness of wall ties is measured
The ends of six samples of each tie are cast into 100mm square concrete blocks, the blocks are suspended, one block excited and the frequency response measured. From these tests the mean dynamic stiffness is calculated for the specific cavity and multiplied by the tie density (usually 2.5 tie/m2). The results are shown in MN/m3.
Ancon is pleased to announce the appointment of Peter McDermott as Group Managing Director, effective 1st January 2019 following the retirement of Stuart Maxwell.
2018 has been another busy year at Ancon following a string of new product launches and improvements, challenging projects and a third Queen’s Award for Enterprise. Here is a quick recap of what’s happened over the last 12 months.