Description

Masonry Cavity Stop Sock 552

Masonry Cavity Stop Sock 552 assists in satisfying requirements of guidance documents such as Approved Document B and The Scottish Technical Handbook.

The product reduces flanking sound transmission at separating wall and floor junctions and complies with Robust Detail (Appendix A) as a “cavity stop”.

Suitable for both vertical and horizontal positioning to the edge of cavities, around openings, at separating compartment lines and to sub-divide cavities.

Specification

• Designed for installation within masonry cavities
• Accommodates a maximum void of 175mm
• Easy installation process
• Installed under compression
• For voids up to 150mm a minimum compression of 15mm is required, thereafter 20mm compression is required up to the maximum void of 175mm
• Tested and assessed to the basic principles of BS 476-20: 1987
• Suitable for both vertical and horizontal orientation
• Solutions available offering either 60 minutes or 120 minutes fire resistance performance

When installing Mayplas Masonry Cavity Stop Sock 552 it may be necessary to consider additional use of DPC’s and/or cavity trays in line with relevant Building Control guidance.

Masonry Cavity Stop Sock 552 positioned in a vertical and horizontal orientation around a window opening.

Product Performance

Cavity Width	Stop Sock Size required for 60 minutes integrity/15 minutes insulation	Stop Sock Size required for 120 minutes integrity/60 minutes insulation
50mm	65mm x 65mm	65mm x 65mm
60mm	75mm x 90mm	75mm x 150mm
75mm	90mm x 120mm	90mm x 150mm
85mm	100mm x 120mm	100mm x 150mm
100mm	115mm x 120mm	115mm x 150mm

Other sizes are available