Timber Frame Wall Ties    Product

Timber Frame Wall Ties

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The CE marked, type 6 retrofit wall ties is used for wall tie replacement in timber framed buildings of 4 stories height. The timber wall ties are stainless steel, helical wall ties with a minimal diameter of 5mm and a cross sectional area of just

Timber framed buildings are often constructed with insufficient or poorly installed wall ties that corrode over time or that simply pull out of the timber during movement.   Helical timber frame ties corkscrew into the timber and are flexible to accommodate differential movement between the timber frame and the brick façade.

Thor Helical retrofit helical wall ties offer a simple and effective solution where insufficient or incorrectly installed wall ties have been used during construction.

The leading end of the tie self-taps 35-45mm into the uprights of the timber frame whilst the deep trough of the continuous helix provides an excellent key for resin fixing the other end into the masonry.

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Description

International Manufacturer of Precision Engineered Helical Bars, Wall Ties & Fixings

The CE marked, type 6 retrofit wall ties is used for wall tie replacement in timber framed buildings of 4 stories height. The timber wall ties are stainless steel, helical wall ties with a minimal diameter of 5mm and a cross sectional area of just

Timber framed buildings are often constructed with insufficient or poorly installed wall ties that corrode over time or that simply pull out of the timber during movement.   Helical timber frame ties corkscrew into the timber and are flexible to accommodate differential movement between the timber frame and the brick façade.

Thor Helical retrofit helical wall ties offer a simple and effective solution where insufficient or incorrectly installed wall ties have been used during construction.

The leading end of the tie self-taps 35-45mm into the uprights of the timber frame whilst the deep trough of the continuous helix provides an excellent key for resin fixing the other end into the masonry.

PRODUCT SPECIFICATION

The 5mm ø Thor Helical timber frame ties are manufactured from AISI304 Austenitic Stainless Steel. They are available in standard lengths of:

  • 180mm ties for 75mm cavity
  • 205mm ties for 100mm cavity
  • 230mm ties for 125mm cavity
  • 255mm ties for 150mm cavity

PERFORMANCE LOADS 60-150mm cavity (taken from CE Mark Testing)

Tension Compression BS 5268-6.1
710N 460N Type 6 Tie

Loads taken at 24mm differential movement to reflect timber shrinkage

TYPICAL MECHANICAL PROPERTIES OF THOR HELICAL TIMBER FRAME TIES

Product Attributes Value
Diameter 5mm
CSA 6mm2
0.2% Proof Stress >880N/mm2
Ultimate Tensile Strength* 1025-1225N/mm2
Mean Tensile Capacity # 7kN

* Ultimate Tensile Strength is measured within a calibrated tolerance of +/- 2% # Mean Tensile Capacity is an indicative value derived from CSA x Mean UTS

This video demonstrates the helical bars being used to create deep brick beams to span a window opening. The stainless steel helical reinforcing bars are bonded with WHO-60 polymer modified grout into cut slots cut into masonry. It offers a quick, simple and durable solution for strengthening and stabalising damaged masonry structures

CE Mark Declaration of Performance Timber Frame Tie (PDF)