Masonry may deteriorate, crack, delaminate and fail for a variety of reasons. Many of these problems can be overcome by using various combinations of Helifix remedial ties and masonry reinforcement products and techniques.

The illustration shows a typical two storey Victorian property of solid wall construction with a later cavity wall extension. Masonry repair strategies using Helifix products have proven to be fully effective in virtually every type of masonry structure from medieval churches to modern tower blocks, from bridges and tunnels to all forms of housing.

They provide secure, lasting connections in all forms of brick, blocks, concrete, stone and timber as well as traditional local building materials such as Devon Cob, Wytchert and Norfolk Clay Lump.

Highlighted are some of the most commonly occurring structural faults that affect every type of commercial and residential property of all ages and construction. In conjunction with the Helibeam System other products are able to remedy specific problems.

These are installed externally in the vast majority of situations leaving buildings visibly unimpaired and causing negligible disruption to their occupants.

Clearly there are other situations which are not shown here such as failed parapet walls, separated cornices, blown render and many more besides.

Using various combinations of Helifix ties, fixings and reinforcing rods virtually any situation can be dealt with so do not hesitate to call us if you have a particular problem which is not covered here.

 

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PARAPET WALL REPAIR

Lengths of HeliBar are bonded into cut slots, normally the mortar beds, while grouted CemTies are installed vertically through the wall.

 

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SEISMIC REINFORCEMENT (UPGRADE)

DryFix ties are installed into the backup material as the outer veneer is constructed and fitted with a ‘T’ connector through which lengths of HeliBar wire is threaded and then bonded into place.

 

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CRACK STITCHING

Lengths of HeliBar extending 500mm either side of the crack are bonded into cut slots, normally the mortar beds, with HeliBond or PolyPlus resin.

 

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REPAIRING OR CREATING FLAT ARCH LINTELS

Parallel lengths of HeliBar, are bonded into the specified cut slots above the existing opening.
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  REPLACING CAVITY WALL TIES
DryFix wall ties are power driven directly into both wythes, via a small pilot hole, typically around 6mm diameter.

 

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STUCCO / RENDER RE-PINNING

Short version DryFix pins are power driven though the stucco and into the backup material via a small pilot hole.

 

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RECONNECTING TERRACOTTA / CLAY FEATURES

The asymmetric DryFix tie is power driven into position through a small pilot hole drilled into the terracotta and backup material.

 

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CREATING MOVEMENT JOINTS

A 400mm HeliBar is installed across the joint, as with cracks, but is only bonded at one end. The other end is allowed to move freely by inserting it into a sleeve which is then bonded into the masonry.