The Masonry Party Wall Barrier - MP552 are polythene enclosed stone mineral wool cavity barriers manufactured in sizes to suit specified cavity widths and assist in satisfying requirements of guidance documents such as Approved Document B and The Scottish Technical Handbooks.
MP552 Masonry Party Wall Barriers is suitable for use at party wall lines.
MP552 is placed at designated positions during erection of masonry which then compresses the barrier between the inner and outer leaf within the cavity creating a seal against smoke and heat transmission.