What is a slip tie in brickwork?

The movement ties restrain masonry against lateral wind loads whilst allowing brick walls and masonry panels to expand or contract.

What are Debonded ties?

Debonding sleeves are used on plain-ended wall ties at vertical movement joints that abut columns. The tie will restrain the masonry against lateral wind loads but the sleeve will allow the masonry to expand or contract.

What do you put in a brick expansion joint?

In brickwork and blockwork you should use foam expansion joint fillers. This is a flexible and lightweight joint filler made from a closed cell foam. It provides resistance to mechanical, thermal and chemical factors in a build.

Do brick walls need expansion joints?

Horizontal expansion joints are also recommended when brick is used as an infill material within the frame of the structure. Expansion joints must be provided between the top course of brickwork and the member above.

What is a movement tie?

Movement ties allow masonry walls to be tied back to other structures, (steelwork or masonry) providing restraint in one direction but allowing movement in the other. This is achieved by placing a debonding sleeve over the part of the tie which is to be embedded in the wall, allowing the tie to move within the sleeve.

How often do you need an expansion joint in brickwork?

With respect to horizontal expansion joints for vertical movement the outer leaf should be supported at intervals of not more than every third storey or every 9 metres whichever is less.

How far apart should expansion joints be in brickwork?

approximately 10 – 12 metres
In general, experience suggests that movement joints in clay brickwork should be spaced at approximately 10 – 12 metres. PD 6697 states that in no case should joints exceed 15 metres and the spacing of the first joint from an internal or external angle should not exceed half of the general spacing.

What is a wall tie for masonry?

Wall ties connect one masonry wythe to an adjacent wythe. Anchors connect masonry to a structural support or frame. Fasteners connect an appliance to masonry. This TEK covers metal wall ties and anchors.

What is the required embedment of unit ties in hollow masonry?

The required embedment of unit ties in hollow masonry is such that the tie must extend completely across the hollow units. Proper embedment can be easily attained with the use of prefabricated assemblies of joint reinforcement and unit ties.

Why use twistfix slip ties?

Twistfix supplies slip ties for use at movement joints. The movement ties restrain masonry against lateral wind loads whilst allowing brick walls and masonry panels to expand or contract.

What is the difference between debonding and slip ties?

The debonding ties can be used in new build cavity wall having a vertical movement joint or in retrofit work where the remedial installation of an expansion joint is cut into and existing brick wall. Slip ties are sold in packs of 20 There are no reviews yet.