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Masonry Party Wall Cavity Stop Sock 552 has been designed to prevent passage of fire through concealed voids within the external fabric of a masonry wall construction, but more specifically where the junction is formed between the external cavity and the party wall cavity.
The Stop Sock contributes in reducing flanking sound transmission at party wall junctions and is suitable for positioning vertically at compartment wall/party wall locations.
Masonry Party Wall Cavity Stop Sock 552 assists in satisfying the requirements of guidance documents such as Approved Document B and The Scottish Technical Handbook.
Designed for installation within masonry cavities at the junction with the external cavity and party wall cavity.
Accommodates a maximum void of 175mm.
Suitable for vertical orientation.
Tested and assessed to the basic principles of BS 476 Part 20: 1987.
Provides up to 120 minutes fire resistance.
Manufactured in bespoke sizes to suit the specified cavity width.
|Size & Weight|
|Max Cavity Width (?)||100 mm|
|Max Length (?)||150 mm|
|Max Width (?)||115 mm|
|Min Cavity Width (?)||50 mm|
|Min Length (?)||65 mm|
|Min Width (?)||65 mm|
|Certifications & Ratings|
|Standards (?)||BS 476-20|
|Fire Resistance (?)||120 Minutes|
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