What are wall ties?

Wall ties, also known as brick ties, are restraint fixings, used to create stability in cavity walls. They are fixed in place with screws or nails, or built into both sides of the cavity wall.

Wall ties are made using corrosion and fire-resistant materials, and some include a drip formation, designed to stop water from running down the inside face of a cavity.

While wall ties cannot be seen externally, it is important that they are installed correctly. Poorly installed wall ties can lead to a series of structural issues failures, including horizontal cracks in walls, bulging walls and in extreme cases, collapsing walls.

Choosing the correct wall ties

The first step is to make sure that you’re using the right wall tie for your wall. There are many different types, each suitable for different applications, with masonry-to-masonry wall ties (covering type 1-type 4) being the most common.

Type 1 wall ties, like this Heavy Duty Type 1 Wall Tie 200mm, are generally suitable for most building sizes and types, but aren’t very flexible and therefore are not recommended where there is excessive movement between the leaves.

Type 2 wall ties, like the General Purpose Type 2 Wall Tie 150mm, and type 3 ties, like the General Purpose Type 3 Wall Tie 300mm, are general-purpose ties. They are suitable for domestic and small commercial buildings up to 15m high, where basic wind speed is under 27m/s and on flat sites less than 150 metres above sea level.

Type 4 wall ties, like the Light Duty Type 4 Wall Tie 200mm, can be used for domestic dwellings up to 10 metres high, on flat sites in towns and cities less than 150m above sea level and where the basic wind speed is less than 27 m/s.

Masonry-to-timber wall ties are designed to secure an inner timber frame to an outer brick skin, and debonded movement ties allow masonry walls to be tied back to other structures, providing restraint in one direction but allowing movement in the other.

How to use wall ties

When installing your ties, they should have a minimum embedment of 50mm, but around 60mm will allow for site tolerances. When you press them in, make sure that they are fully surrounded and have a slight fall towards the outer leaf. If your tie has a drip feature, make sure it’s placed at the centre of an open cavity.

To avoid the risk of injury from ties poking out, where possible, it is advisable that both the inner and outer leaves of the cavity wall should be built simultaneously

Best-selling wall ties

Some of our best-selling wall ties include the Brick-Timber Stainless Steel Wall Tie with Nail 124mm, which is also available in Brick-Timber Stainless Steel Wall Tie with Nail 149mm and Brick-Timber Stainless Steel Wall Tie with Nail 174mm.

We also stock flat ties like this 125mm Stainless Safe End Debonded Flat Tie, which is available in seven different sizes, including 150mm Stainless Safe End Debonded Flat Tie, 175mm Stainless Safe End Debonded Flat Tie and 200mm Stainless Safe End Debonded Flat Tie.

If you have any questions regarding wall ties or any of our other products, don’t hesitate to contact our team today, by calling us on 01206 793100 or sending us an email at sales@speedyfixings.com.