No Butts. It Has To Be Staifix.
BS1243, the British Standard for the Butterfly Wall Tie, was withdrawn on 1st January 2005.
Ancon recommends that those still specifying and purchasing butterfly ties should now switch to the market leading Staifix HRT4 Housing Wall Tie. This tie offers a range of benefits to specifiers, installers and stockists.
The Staifix HRT4 complies with the requirements of Part E (Resistance to the Passage of Sound) as a Type A Tie for use in separating/party walls (cavities: 50-100mm; 125-150mm). As a PD 6697 Type 4 Tie it is suitable for use in external masonry walls in houses up to 10 metres in height with cavities from 50mm to 100mm. It can be used in line with NHBC standards. It is suitable for use in open cavities, and partial-fill cavities with the Staifix Universal Insulation Retaining Clip.
The Staifix HRT4 has a slender profile that features specially designed safety ends to reduce the risk of injury on site and multiple drips to prevent water crossing the cavity (whichever way up the tie is installed).
Staifix cavity ties are value-engineered from high tensile stainless steel wire resulting in increased strength at a reduced price.
Unlike butterfly ties that are packed in large bundles, Staifix cavity ties nest together in shallow boxes that simplify handling, storage and display. Eye-catching merchandising units are available free of charge to Staifix stockists.
Updated May 2011.
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Construction industry remains open. Manufacturing at Leviat continues through latest national lockdown.
The health, safety and wellbeing of all those who work with us and for us, as well as the general public, is always our No. 1 priority.
CE, UKCA and CE UKNI marking from Leviat
From January 1st 2021, the UK will recognise both the EU CE marking approvals, for a time limited period, and the new UK based approval system, which will be known as the UKCA mark. The EU will only recognise CE marking by EU notified bodies as proof of efficacy moving forwards. Leviat has been working closely with both EU notified and UK approved bodies to ensure compliance is achieved at the earliest possible opportunity and we can confirm that we have obtained all relevant certification.