Shims
IG Masonry Support manufactures two types of shims which can be inserted between the support structure and the masonry support bracket:
- Thermal A1 Rated Shim – to prevent thermal transfer
- Stainless Steel Shim – accommodate small increase in cavity widths
Shims are available in thicknesses from 2mm up to 6mm. We also supply one 2mm Shim as standard with every bracket supplied.
The collective number of shims should never exceed three and the thickness of shims used should never exceed 12mm.
Stainless Steel Shim
Thermal A1 Fire Rated Shim
Thermal A1 Rated Shim
IG Masonry Support’s Thermal A1 Rated Shim is designed to minimise heat loss through cold bridging, improving energy efficiency of the project whilst eliminating bi-metallic corrosion within the Masonry Support System.
Thermal bridging occurs typically where there is either a break in the insulation, less insulation or the insulation is penetrated by an element with a higher thermal conductivity. Where the building is situated in a cold climate (such as the UK) this can result in additional heat loss at these points.
This type of shim is provided as standard with IG Masonry Support Systems, is 2mm thick and isolates the masonry support bracket from the support structure.
The collective number of shims should never exceed three. The maximum allowable thickness of shims used should be no more than the outside diameter of the fixing bolt or 12mm, whichever is less.
Stainless Steel Shim
Designed to accommodate small changes in cavity widths, our Stainless Steel Shim is available in 3mm, 4mm, 5mm and 6mm thicknesses and is manufactured in grade 304 stainless steel.
The collective number of shims should never exceed three. The maximum allowable thickness of shims used should be no more than the outside diameter of the fixing bolt or 12mm, whichever is less.
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