Installation - Safety Fast Joist Cap
The SFJC does not provide any lateral stability to the joists during construction phase. It is therefore necessary to install temporary bracing in accordance with the joist manufacturers instructions and/or standard construction practice, to ensure temporary stability of the floor joists.
Place floor joist onto wall and adjust to ensure correct bearing at each end.
Lift the floor joist and install SFJC over the end of the joist, ensuring the SFJC face flanges are tight against the inner face on the masonry wall.
SFJC225/50: SOLID SAWN JOISTS
Solid sawn joists up to 50mm wide and 225mm high can be installed directly into the SFJC225/50.
SFJC305/50 SOLID SAWN JOISTS
Solid sawn joists up to 50mm wide and 300mm high can be installed directly into the SFJC305/50. For narrower joist widths use the wedge cut outs to pack the joist.
SFJC305/100 & SFJC225/100: SOLID SAWN JOISTS
Steel joist plates slides into the slots within the SFJC and are fixed to the top and bottom of the floor joists.
Nail in place with 2 No 3.75 x 30mm square twist nails per plate.
Install horizontal restraint straps at maximum 2m centres and nail to the timber joists with 8 No 3.75 x 30 square twist nails.
Build up masonry between SFJC and continue with wall construction.
Ensure all joints between the masonry and SFJC are fully filled with mortar.
With the SFJC305/50 check the tightness of the wedges once wall is completed.
If necessary, hammer wedges in tight.
Also if necessary, fill the void around the joist with mineral wool or expanding foam.