StarTie
Wall tie for extending an existing wall or securing a new leaf to an existing wall
APPLICATION
- Where a new inner or outer skin is added to an existing wall.
- A new party wall is being constructed.
- A section of damaged wall is being taken down and reinstated.
- An existing solid or cavity wall is being extended.
FEATURES
- One-piece grade 316 stainless steel tie.
- Effective in brick, blocks, concrete, stone and regional materials.
- Great axial strength resists all wind loads.
- Multiple drip points prevent cross cavity water transfer.
- Designed for use with or without insulation.
BENEFITS
- Helical design ensures excellent mortar bond.
- Provides secure stress free connection.
- Pushes through insulation without affecting thermal properties.
- Flexibility accommodates natural building movement.
- Range of standard tie lengths available to accommodate various cavity sizes.
INSTALLATION
Example 1. Connecting a new stud wall to an existing masonry leaf. Drill a small pilot hole, normally 5mm, through the stud and into the existing wall. (Pilot hole may not be required in low density block). Load the StarTie into a Helifix driver attachment fitted to an SDS hammer drill. 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. (StarTies wall ties are self-tapping and will work themselves into the stud and wall following the hammer action of the drill.)
Example 2. Connecting a new masonry leaf to an existing masonry wall. Drill a small pilot hole, normally 5mm, at an angle into into the existing masonry. Load the StarTie into a Helifix driver attachment fitted to an SDS hammer drill. Drive the end of the tie into the hole, before bending the exposed end of the tie down to lie flush with the top surface of the new leaf.
|
Bed the tie into the mortar of the wall during construction. |
|
Example 3. Addition of new party wall. Install the tie at an angle into the existing wall before bending to lie along the mortar bed of the new wall. One end of the tie can be sleeved to create a movement joint. |
Example 4. Extension of existing wall. Install ties horizontally or at an angle into the brickwork or mortar beds (if in good condition) of the existing wall and bed into the mortar on the new wall.
Points to Note
- The same procedures apply when adding a new wall to a solid wall, a cavity wall or a single leaf wall.
- StarTies are equally effective whether the new or existing wall is constructed from brick, block or stonework.
- If the ties are to be installed into existing mortar beds they must be sound and of adequate strength.