What are lateral restraint ties?

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Lateral restraint ties restrain bowing or bulging masonry walls by tying them back to the building's timber floor joists. They improve lateral stability without the need for traditional external restraint plates.

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What type of lateral restraint tie do I need?

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The correct tie depends on how the wall is connected to the timber floor structure.

Threaded Lateral Restraint Ties are used for side joist applications. Only the masonry is drilled. The drill-point tip cuts its own path through the sides of 2–3 timber floor joists, mechanically fixing itself into each joist. The masonry end is bonded using Titan Anchor Resin.Helical Lateral Restraint Ties are used for joist end applications. The helical end is driven into the end of the timber joist, while the masonry end is bonded using Titan Anchor Resin.

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When should lateral restraint ties be used?

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Lateral restraint ties are used where an external masonry wall has begun to bow or move outwards because it is no longer adequately restrained by the floor or roof structure. They are suitable where the wall remains structurally sound but requires additional lateral restraint.

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How do lateral restraint ties work?

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The masonry end of the tie is bonded into the wall using Titan Anchor Resin, while the opposite end is mechanically fixed to the timber floor joists. This restrains further outward movement and improves the wall's lateral stability.

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Are lateral restraint ties suitable for cavity and solid walls?

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Yes. Titan Ties Lateral Restraint Ties are suitable for both cavity and solid masonry walls, provided the construction is suitable for this type of repair.

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Will lateral restraint ties straighten a bowed wall?

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No. Lateral restraint ties are designed to restrain and stabilise a wall rather than pull it back into position.

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Can lateral restraint ties be installed from outside the building?

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Yes. Installation is carried out primarily from outside the property, reducing disruption and eliminating the need for visible external restraint plates. Usually only a small number of floorboards need to be lifted to identify the floor joists and check for hidden services before drilling.

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How do I know which length lateral restraint tie I need?

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For threaded lateral restraint ties, the tie should normally pass through 2–3 timber floor joists. Titan Ties threaded lateral restraint ties are available in 1.0m, 1.2m, 1.5m and 2.0m lengths. For helical lateral restraint ties, a minimum 70mm embedment into the end of the timber joist should be achieved, in addition to the required masonry embedment. Helical ties are available in a range of lengths to suit different wall constructions.

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How many lateral restraint ties will I need?

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The number of ties depends on the wall length, joist spacing and the engineer's recommendations. As a general guide, ties are installed at regular intervals along the affected wall.

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Are lateral restraint ties suitable for listed or heritage buildings?

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Yes. Because the Titan Ties system is concealed and does not require external restraint plates, it is often suitable for conservation and heritage projects, subject to the requirements of the individual building.