Dry Fix
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DryFix is a patented remedial tying system that provides stress-free connections between building materials without needing grouts, resins, or mechanical expansion. It can be used to repair wall ties, pin delicate masonry features, and secure multiple layers of masonry. DryFix uses self-tapping stainless steel ties that are quick and easy to install using only a drill. It leaves masonry virtually unmarked and can be used in various weather conditions.
Dry Fix
- 1. DryFix DryFix Dry mechanical pinning and remedial tying system APPLICATIONS INSTALLATION s Replacement wall tie s For securing multiple layers of masonry s For pinning delicate masonry features FEATURES 1 Drill small pilot hole using rotary percussion drill, 3-jaw-chuck type. s Patented remedial tying system s Self-tapping, secure, stress-free fixing s Requires no resin, grout or mechanical expansion s Slim, one-piece, grade 316 stainless steel tie s Extremely quick and easy to install 2 Load tie into DryFix Power Driver Attachment fitted to SDS hammer drill. s Effective in bricks, blocks, concrete, hard mortar, timber s Effective in cavity and solid walls, hollow materials and close to edges s Usable in all weathers, temperatures and environments 3 Drive in tie until outer end is fully recessed below face of masonry. BENEFITS s Highly economical with low installed costs s Great tensile strength s Flexibility accommodates normal building movement s Multiple drip points prevent transfer of 4 Make good. water across cavity s Can be installed through insulation without affecting its thermal performance s Leaves masonry virtually unmarked s Minimal inconvenience to occupants BONDING AGENT s None required REFERENCE Page 44 14 HELIFIX STRESS FREE STRUCTURAL SOLUTIONS
- 2. DryFix DryFix The patented DryFix system provides an effective and economical TYPICAL APPLICATIONS stress-free connection between all commonly used building materials in cavity and solid masonry constructions without needing any grouts, resins or mechanical expansion. B. Brick to Clay Tile C. Brick to E. Brick to F. Brick Multi Leaves F. Brick Multi Concrete Concrete Block (Plan) Leaves A. Fine Terracotta (Mortar Joint (Mortar Joint (Section) D. Brick to to Masonry or Solid Brick) or Solid Brick) Concrete Block G. Repairing Limestone/ Sandstone or Brick Arches and Lintels H. Brick to Wood H. Brick to Wood I. Brick to I. Brick to Steel J. Stone, Marble Stud (Section) Stud (Plan) Steel Stud Stud (Section). or Granite NOTE: In many situations ties may be installed (Mortar Joint (Mortar Joint (Plan). Interior Panels to from inside the building if circumstances or Solid Brick) or Solid Brick) Interior Installation Concrete demand. Installation Terracotta Tie It has an 8mm diameter over the majority of its The DryFix Terracotta Tie was developed length with a short 10mm section at one end to specifically to secure fragile terracotta facings grip the soft terracotta without enlarging the and delicate decorations and features which have pilot hole. It is installed in the same manner become loose or are suffering from stress as standard DryFix ties to provide a fractures. rapid, reliable and concealed solution. FEATURES AND BENEFITS INSTALLATION A small pilot hole is s Does not stress or fracture fragile substrates drilled through the terracotta and into the s Requires only a small diameter pilot hole backup material, to a s Easy to install and fully concealed predetermined depth, using a rotary s No chemicals or expansion devices percussion drill s Withstands cyclic loading The tie is power driven (3-jaw-chuck-type) into position (with s Accommodates differential movement SDS hammer drill) s Usable in all weathers and temperatures until the outer end of the tie is recessed below the face of the terracotta by the special insertion tool HELIFIX STRESS FREE STRUCTURAL SOLUTIONS 15
- 3. DryFix DryFix Render Pinning Special short versions of DryFix are further. Mosaic tile finishes can easily available for re-pinning separated, become loose and fall away. unstable and potentially dangerous Installed in the same way as standard loose render. This situation is DryFix ties, re-pinning is a far simpler and particularly prevalent throughout SE more cost-effective method of stabilising Asia where buildings are often coated the render than traditional solutions such with a hard render, keyed to the back-up as hacking off and re-rendering or material by means of a splatter dash chemical anchoring with large pins. application, which is then painted or (See 1998 report by Frank Jones) covered with small tiles to achieve a waterproof finish. Typically the render is 20-65mm thick INSTALLATION but this can vary greatly between 12mm and 80mm. Breakdown of the bond Drill a small pilot hole between the render and back-up through the render and into the backup material material can occur for various reasons to the pre-determined but once delaminated it is likely to depth using a rotary become increasingly unstable, resulting percussion drill (3-jaw- chuck type). Load the tie in cracks and bulges. These in turn into the special insertion encourage water penetration while wind tool (fitted to an SDS hammer drill) and drive it into position loads tend to loosen the render even until the outer end is recessed below the outer face Seismic connector APPLICATIONS FEATURES AND BENEFITS s For both new build and remedial upgrade to s Simple and straightforward to install meet current seismic requirements and s Easily tested for security of fixing in back-up restore structural performance material s Non-disruptive - requires no taking down The DryFix system is used in conjunction with a and rebuilding special patented connector fitted to the tie end and s Strong, stress-free connection with back-up connected laterally with HeliBar 45 stainless steel material wire. In new build constructions these are installed as s Additional strength created in outer leaf the outer leaf is constructed while in remedial situations the DryFix ties are installed, in the standard s Positive lock with easy overlap for long runs manner, through the ‘T’ joint of the outer leaf mortar, s Fully concealed and visually sympathetic the seismic connectors fitted and then threaded together with wire in the channelled out mortar joint and grouted in place. Most methods are designed for new construction only and are very disruptive in remedial situations, often requiring masonry to be dismantled and rebuilt. This is not the case with the Helifix system which is the only positive lock seismic connector with easy overlap for long runs. 16 HELIFIX STRESS FREE STRUCTURAL SOLUTIONS