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This is a sample module published to the sidebar_bottom position, using the -sidebar module class suffix. There is also a sidebar_top position below the search.

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ROOF GRIP INSTALLATION

 
Purpose 

To ensure the Roof Grip as an elevated walkway is installed in the correct manner.

Detail
This specification covers the site installation of Roof Grip both ACROSS THE SHEET RIDGE and ALONG THE SHEET RIDGE. The same bracket is used in both cases and the same method of fixing is used. 


METHOD OF FIXING 
COMPONENTS:

  1. Walkway panel

  2. Fixing bracket  

    The elevated bracket is supplied as a sub assembly and consists of:

  1. An aluminium bearer bar

  2. 2 profiled clamps

  3. 2 profiled aluminium top hats

  4. 2 x 18mm rivets 

    Hoist the walkway up onto the roof sheets. 

    This may be done by a crane if one is available (Use of crane procedure must be followed) or by hoisting rope over the edge of the building (Use of hosting ropes procedure must be followed).  

    • Care must be taken not to damage the Roof Grip when lifting
    • Care must be taken not to damage the side or edge of the building when liftion
    • Preapproved storage positions must be obtained for positioning on the roof
  • Adequate protection must be afforded the roof sheets 

Lay the walkway out on the roof. 
The walkway must be loosely laid out on the roof in a position adjacent to its final position. This walkway must be used when marking and setting out the final position of the walkway to reduce the impact. 
Mark out the bracket positions. 

In consultation with the main contractor determine the correct positions for the brackets.
Use a chalk line to mark out and ensure lines are straight and parallel.
Consider obstacles and walkway junctions when positioning the brackets.

Fitting the brackets 
Open the clamps so the fit over the roof sheet profile.
Position the clamps according to the markings.
Tighten the clamps finger tight. Once a line of clamps are positioned and you are satisfied with their positioning tighten the clamps.

Position the walkway panels 
Place the panels on top of the brackets.
Once a section of panels are in position manipulate them to produce the most satisfying layout. 

Fixing the walkway panels. 
Once the panels are in the best possible position, find the best position for the top hat. As close to the clamp as possible.
Drill through the bearer bar and fix the top hat into position with the rivet provided. 

POSITIONING THE WALKWAY 
The position of the walkway will be determined by the main contractor under instruction from the engineer or architect. The walkways are best positioned as close as possible to rafters or purlins but this may vary depending on the installation requirements. 

The walkways may be fitted either along the ridge or across the ridge as shown in the drawings. The bracket spacing in either direction must be 700mm

PLEASE NOTE: 

  1. The last bracket must not be more than 150mm form the end of the walkway.

  2. All Tee junctions must be fitted with an H connector.

  3. Walkways may overlap on back flashing but they must be fixed into position at mid point using a bonded bracket.

  4. Walkways end may finish on edge flashing but must be neatly finished and must not protrude over the edge or into gutters.

  5. Walkways either side of a ridge cap or gutter must be aligned to the closest ridge. Walkways that do not align must be brought to the attention of the main contractor.

  6. Walkway ends on either side of a ridge cap must be as close as possible to the same distance from the center of the ridge cap. If this is not possible approval must be sought from the main contractor.

  7. Ensure gaps between walkways ar no more than 5mm

  8. All walkways must be joined by an H connector. The H connector must be securely fixed and on side only.