Wall Tie Condition

Question

Following a home buyers report, it was highlighted to us that the wall ties may need replacing due to horizontal cracking visible in the rear elevation render. What is the best way to inspect the current wall tie condition
without drilling into the external walls, as we don't yet own the property.

Timothy · Accepted Answer

Hi Nathan,if there is an external vent or air brick you might be able to use an inspection camera to check the condition of the wall ties.This only happens in cases where the said wall is taking the worst of the weather and the rain soaks the bricks enough to rust the wall ties.Ive only come across this a couple of times on houses that where built in the 1960 s.In both instances I dealt with there were numerous bricks that had to be cut out and replaced due to weather damage which would be an indication of the problem

Cezary · Answer

Hi, try find a ventilation or check is there a space near boiler outlet. Often there's enough space to use a tool called "endoscope inspection camera".
It's rather cheap thing, can be found on Amazon for something about 30 pounds.

Andy · Answer

A camera would be the best option but if the cavity wall has full fill cavity insulation the that won’t help , surprised it’s wall ties if the wall is rendered, are the cracks more horizontal and vertical

Julian · Answer

I would say you're best of bets would be a camera inspection,  not too intrusive in comparison to cutting lots of brick out ....

Mark · Answer

Unfortunately there is no way of inspecting wall ties unless you drill a hole and use an Endoscope to look at the condition of the ties. They can be replaced with remedial wall ties which basically, drill a hole through the face brick and into the inner skin. insert the new tie and tighten with a socket.
Horizontal cracks are a different issue !! Check out StayFix rods on YouTube to resolve this problem.

Mark Fletcher
Independent Building Services

Isaaq · Answer

A camera inspection would be your best bet id say, or maybe if there are any air vents etc that could potentially be pulled out for further inspection.

Gareth · Answer

Horizontal cracks in brickwork is foundation problems  and not tie wirers.
Its  vertical crack or bulging brick when ties fail

James · Answer

You can buy a metal  detector  and will tell you where toes are think they do small ones for this

David · Answer

The easiest why of doing this 8s by drilling pilot hole and using a endoscope device to examine the cavity wall ties and the type of existing cavity insulation being used

Zahid · Answer

Is there a cavity by which you could insert a camera, or get between the Crack and wall?

Wall Tie Condition

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