DryFix
Dry mechanical pinning and remedial wall tie system
DryFix is the simple and cost-effective solution to a variety of pinning and tying problems including retrofitting wall ties to masonry suffering from failed, corroded, missing or inadequately spaced wall ties.
The system involves driving a self-tapping, helical DryFix tie through the material to be tied or pinned, typically via a small pilot hole, to provide a solid fixing without mechanical expansion, resin or grout.
Engineered from Grade 316 austenitic stainless steel, DryFix ties are quick and easy to install. They are suitable for use in all standard cavity and solid masonry construction and have been designed to be driven through, and into, dry-pressed brick, extruded brick, block, aircrete, concrete, strong mortar, timber, stone and more.
DryFix ties may be used in hollow materials and close to edges. They are sufficiently flexible to permit normal masonry movement, are designed to shed water in cavity construction and provide strong, reliable axial restraint in both tension and compression.
APPLICATIONS
- Replacement cavity wall tie.
- Dry mechanical pinning of render and thin panels. More...
- More applications...
FEATURES
- Slim, self-tapping, one-piece, Grade 316 stainless steel tie.
- Small cross-section for stress-free installation and fixing.
- Hi-fin helical profile for optimal mechanical connection.
- Requires no resin, grout or mechanical expansion.
- Effective in cavity brick and brick veneer construction.
- Effective close to edges and usable in all weathers, temperatures and environments.
- Patented remedial tying system.
BENEFITS
- Highly economical and easy to install.
- Great tensile strength while retaining flexibility to accommodate normal building movement.
- Multiple drip points prevent transfer of water across cavity.
- Can be installed working in from the external to internal skin or working out from the internal to external skin.
- Can be installed through insulation without affecting its thermal performance.
- Leaves masonry virtually unmarked.
- Minimal inconvenience to occupants.
BONDING AGENT
- None required.
INSTALLATION
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Drill a small pilot hole (typically 5mm diameter) through the near leaf and into the remote leaf. More...
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Load the DryFix tie into a DryFix Power Driver attachment fitted to an SDS hammer drill.
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Support the power driver with one hand, leaving the other to work the drill, and drive the tie into the hole until the outer end is fully recessed below the face of the masonry. (DryFix wall ties are self-tapping and will work themselves into the wall following the hammer action of the drill.)
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Make good.
TECHNICAL SPECIFICATIONS
- Material - Grade 316 stainless steel.
- Diameter - 8mm (standard), 10mm also available.
- Length - 220mm (standard for 40-60mm cavities). 155, 170, 195, 245 270 and 295mm ties are also available to accommodate different cavity sizes.
- Standard pack size - 100 ties.
- Typical installation spacing
- 300mm centres around openings
- 600mm centres in unbroken masonry
- More...
OTHER APPLICATIONS
All Helifix ties and fixings are manufactured to a unique hi-fin helical design that provides a large surface area to cross section for great, stress-free bonding characteristics. In the DryFix setting, the hi-fin/small cross section combination enables lasting, stress-free mechanical connections to be formed in most common building materials including brick, concrete and timber as well as in more delicate materials like clay and hollow concrete.
