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Wall Ties & Restraint Fixings

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.

Type A ties throughout the site are indicated by this logo e.g. Staifix HRT4, ACOU Acoustic Wall Tie Range.

Staifix HRT4

Staifix HRT4

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.

BIM Objects

CAD Drawings

Latest News

Proud Sponsors of 2019 Brick Awards

As a long standing sponsor of the Brick Awards, Ancon once again joins the celebrations to acknowledge excellence in the use of the UK’s favourite cladding material.

Ancon to exhibit at London Build

Ancon will be exhibiting at London Build 2019 on the 27th - 28th November at Olympia, London. Ancon will be on stand C28.