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Roof Bars

Anchor 1
Self-supported Glazing bars

Our range of self-supporting glazing bars can be glazed with 16mm, 25mm, 32mm and 35mm Polycarbonate sheet or glass.

Available in both economy and heavy duty options. 

Please check the spanning guides below for available lengths and colour options.

Click here for details on installation

Anchor 2
Timber supported Glazing bars

1. Read these instructions thoroughly before cutting any parts.

2. We recommend a minimum pitch of 10 degrees (ie a fall of 175mm inn every 1m). Pitches of less than this should be avoided where possible as water run off may be reduced.

3. The aluminium base needs to be cut 5mm longer than the polycarbonate sheet. This will allow the end cover to be fitted flush with the PVCu cap whilst providing a gap for drainage.

4. Fixing holes are to suit a no. 6 wood screw. These are to be drilled in the centre of each glazing bar between the upright toothed legs. The holes should be around 75mm in from each end and at no greater than 450mm intervals alomg the bar.

5. Fix aluminium base to rafter using no. 6 roundhead wood screws. Ensure bars are parallel to each other and square to frame, or the polycarbonate sheets may not fit.

6. The base gaskets (joined in centre) need to be pulled apart to provide 2 lengths. Slide these gaskets into slots in base.

7. Measure and cut polycarbonate sheet to length allowing an extension of approximately 50mm to overhang the gutter. When calculating the width of the sheet allow 3mm either side for thermal expansion.

8. Apply silver tape, from the tape pack, to the top of the sheet to prevent ingress of dust and dirt and the breather tape to the bottom of the sheet. Lift protective film for approximately 50mm down each side. Place sheet in position on the glazing bar base.

9. Position the PVCu cap so that the toothed legs locate inside the central recess in the aluminium base. Press the cap down and firmly tap into position until teeth are engaged in the locking points appropriate to the thickness of the sheet being fitted. Please note that when using 25mm polycarbonate sheet the teeth will only engage 1 notch down. The teeth will engage further down when using 10mm or 16mm polycarbonate sheet. Ensure the outline of the capping is consistent and the sheet is firmly held in place.

10. If a universal edge trim is to be used at the open edges. locate this in the groove on one side of the aluminium base before pushing capping down.

11. When all sheets are in position remove the protective films and fit the end covers by pushing the legs into the slots provided in the aluminium base.

12. PVCu sheet closure (available separately) can then be cut to length. Tap on the ends of the sheeting and butt up against the glazing bar covers.

13. Fixing buttons should be used in exposed conditions or where large panels are used. Always fix a minimum of 1 button through the sheet onto the front eaves beam to help prevent the polycarbonate from slipping forward. Ensure the diameter of hole cut is large enough to allow the polycarbonate sheet to expand without coming into contact with the screw. Do not over-tighten screw.

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