(SINGLE-50PACK) - Remedial ties for cavity tie installation and brick pinning. Superior Thor Helical ties offer the easiest, fastest and most reliable cavity tie replacement solution available. CE Marked in respect of EN845-1:2013 for use in masonry mater
(150 TIE KIT) Remedial brick tie kit. 150 self-tapping helical ties, SDS setting tool and 2 SDS carbide drill bits for simple, rapid & cost effective cavity tie replacement. CE Mark Approved in respect of EN845-1: 2013 for use in masonry materials..
Retrofit lateral restraint tie for softwood. Ties a masonry wall to parallel floor joists in remedial applications. These stainless steel tie bars are suitable for use in solid or cavity walls. - Pack of 5
Helical tie bars for connecting multiple layers of brick or stone when reinforcing the separating leaves of a solid wall without the need for special grouts or mortars. Packed in lots of 50
The need for remedial wall ties was established in the early 1980’s, when wall tie failure was discovered as being a widespread problem across the UK. Before then British Standard wall ties were typically manufactured from mild steel and commonly protected by a sacrificial zinc coating. Tie irons were expected to last the lifetime of a building. Surprisingly, as it was subsequently discovered, wall tie corrosion could become a major issue in as little as 26 years.
Wire butterfly ties are made from small diameter wires that are twisted into a double loop. Because they have little mass, when they corrode they generally break up without showing any initial signals that structural defect is present and that the walls are no longer connected. A bow in the wall may be the first sign that tells you all is not well.
Vertical twist ties are manufactured from heavier flat steel plate, often with a 'fish-tail' end. When they begin to rust they have potential expand to seven times their original thickness. This tremendous expansion force is irresistible and often causes the brick walls to split and crack horizontally along the mortar joints, causing structural damage and affecting stability.
Where an existing wall tie system has failed through corrosion or improper installation then replacement wall ties are a vital part of the remedial solution, strengthening and stabilising vulnerable cavity wall structures.