{"product_id":"helifix-bowtie","title":"Helifix BowTie","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHelifix BowTie\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a specialist stainless steel wall restraint tie designed to stabilise bowing and bulging masonry walls by securely connecting them to internal timber floor or ceiling joists. This innovative structural repair system provides an effective solution for restraining unstable external walls without the need for unsightly external wall plates or extensive rebuilding.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from high-quality stainless steel, Helifix BowTie features a self-tapping helical design that anchors directly into timber joists, creating a strong connection between the masonry wall and the internal timber structure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts concealed installation makes BowTie particularly suitable for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehistoric buildings, traditional stone cottages, period properties and heritage restoration projects\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, where retaining the original appearance of the building is essential.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIdeal for Bowing and Bulging Masonry Wall Repairs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOver time, masonry walls can become unstable due to inadequate lateral restraint, structural movement, deterioration of original wall connections or changes in building loads. This can lead to outward bowing, bulging or separation between external walls and internal floors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHelifix BowTie provides a discreet method of restoring lateral restraint by securing affected masonry walls to the existing timber floor or ceiling joists.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike traditional wall tie bars that often require large external metal plates, the BowTie system is installed through relatively small drilled holes, allowing the repair to remain concealed once completed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes it particularly useful for the conservation of historic stone and brick buildings, where minimising disturbance to existing masonry is an important consideration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFeatures \u0026amp; Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStainless steel construction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – manufactured from corrosion-resistant stainless steel for long-term durability\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEffective wall stabilisation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – helps restrain bowing and bulging external masonry walls\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelf-tapping helical design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – creates a secure fixing into timber joists without conventional expansion anchors\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFully concealed installation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – eliminates the need for visible external restraint plates\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for traditional buildings\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – ideal for appropriately assessed stone, brick and solid masonry walls\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMinimal disruption\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – typically installed externally, reducing disturbance to internal finishes\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompatible with hardwood timbers\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – suitable for installation into appropriate existing hardwood or softwood joists\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eResin-bonded masonry fixing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – installed using Helifix PolyPlus resin to secure the tie within the masonry\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for heritage restoration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – helps retain original architectural features and external wall finishes\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTestable fixing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – installation strength can be checked where required by the repair specification\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHelifix BowTie is suitable for a range of structural masonry repairs, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBowing external walls\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – restoring lateral restraint to walls that have moved outwards\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBulging masonry walls\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – stabilising affected areas where movement is related to inadequate wall restraint\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTraditional stone buildings\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – reinforcing wall-to-floor connections in historic properties\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrick masonry repairs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – securing external brick walls to existing timber floor structures\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePeriod property restoration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – providing discreet structural reinforcement without visible external tie plates\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWall-to-floor connections\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – strengthening inadequate or deteriorated connections between masonry walls and timber joists\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGable wall restraint\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – where a suitable engineered repair detail connects the wall to appropriate roof or floor timbers\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eManufacturer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Helifix\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Stainless Steel Remedial Wall Restraint Tie\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Grade 304 or Grade 316 Stainless Steel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTie Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 8mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvailable Standard Lengths:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 155mm, 170mm, 195mm, 220mm, 245mm, 270mm, 295mm, 325mm and 350mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMinimum Anchorage into Joist End:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 75mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMasonry Bonding Agent:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Helifix PolyPlus Polyester Resin\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSuitable Substrates:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Appropriate solid masonry, brickwork, stone masonry and cavity walls\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrimary Application:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Restraining Bowed or Bulging Walls by Connecting Masonry to Timber Joists\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHelifix BowTie is normally installed from the exterior of the building, with the tie driven through a pre-drilled clearance hole in the masonry and anchored into the end of an internal timber joist.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOnce the joist position has been identified, a clearance hole is drilled through the wall and cleaned. The BowTie is then installed using the appropriate Helifix support tool, driving the self-tapping helical tie at least 75mm into the joist end.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA plastic sleeve is positioned within the drilled hole, and Helifix PolyPlus resin is injected to bond the tie securely to the masonry. The external opening can then be made good using a suitable repair mortar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor applications involving joists running parallel to the wall, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHelifix BowTie HD\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e system may be required instead.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe number, spacing, position and length of ties must be determined by a suitably qualified structural professional, taking account of the condition of the masonry and timber structure.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eA Discreet Structural Repair Solution for Historic Buildings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHelifix BowTie offers an effective and minimally invasive approach to restoring lateral restraint in traditional masonry buildings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBy connecting unstable external walls to existing timber floor structures, the system helps improve structural stability while reducing the need for extensive masonry reconstruction or visible external restraint plates.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor conservation contractors, structural engineers and restoration specialists, Helifix BowTie provides a practical solution for strengthening existing buildings while helping preserve their original architectural character.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/55Vgxs3XcQI?si=GcrIM06yUEEvO7nZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Roundtower Lime Ireland","offers":[{"title":"Default Title","offer_id":67652716953773,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/7297\/2461\/files\/Screenshot2026-10-25125723.png?v=1792933053","url":"https:\/\/www.roundtowerlime.com\/products\/helifix-bowtie","provider":"Roundtower Lime Ireland","version":"1.0","type":"link"}