Wall Ties
All of our products are available with or without retaining discs and in custom sizes. All wall ties comply with I.S.268 and E.N.845 1-3.
New! Long wall ties for extra wide cavities.
Guidelines for Usage
The current type and density of wall ties is controlled by the area of unsupported brickwork, the exposure to wind, the cavity size and the nature of the structure. Detailed recommendations can be found in the following productions:- I.S. 268 – Specification for metal ties for cavity wall construction B.S. 5628 Parts 1 and 2 – Use of Masonry
CPQ Chapter V – Wind Loads
Wire double Triangle Ties are suitable for buildings up to 9m tall. Flat Strap Ties 17mm or 20mm X 2.5mm are suitable for all buildings in basic wind speed areas up to 44m/s.
General Guide to Density
The tensile strength retained after being subjected to cyclic movement was in no case less than 75% of the characteristic tie tensile strength. This was based on a density of 3 ties /m2.
| Cavity Width less than 50mm | One leaf 75mm-90mm thick. Not less than 4.9 ties /m2. |
| Cavity Width 50-75mm | Both leaves more than 90mm thick. Not less than 2.5 ties /m2. |
| Cavity width 76-100mm | Both leaves more than 90mm thick. Not less than 3 ties /m2. |
| Cavity width 101-150mm | Both leaves more than 90mm thick. Not less than 4.9 ties /m2. |