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HMT
HMT
High Movement Timber Frame Wall Tie
The HMT wall ties are used to restrain the external blockwork/brickwork back to the timber framed structure. They provide greater performance to accommodate differential movement in medium to high–rise structures.
304
Austentic Stainless Steel
To be calculated by building designer.
Refer to the Cullen Technical Guide
Accommodates maximum differential movement of 75mm for structures 3 stories and above
Supports cavity widths of 45mm-65mm
Corrosion resistant to service class 3
3.35 x 50mm Stainless Steel Annular Ring Shank Nails
Specific Cullen products have been specified to be fixed with 3.35 x 50mm Stainless Steel Annular Ring Shank Nails for certain applications.
On the basis of wall ties having different failures in different materials e.g, tension – nail withdrawal (timber), compression – buckling (steel), we are now no longer publishing the lowest values and to assist the Building
Designer we have shown the test results, failures modes and calculations
Nail channel into wall panel by nailing 1x no fixing at the bottom of the slot. Allow adequate space above the masonry to hammer fix
Position channel by lightly tapping with a hammer until channel is in correct position. The tie should line through with the LOW marker to allow full 75mm movement
Once the channel is in position fix the top round hole into the wall panel, position the tie and build the next course of block work:
- Low – 75mm movement
- High – 65mm movement
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