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After the house frame has been inspected, passed and certified by our engineers, we can move on to the roof coverings. Specialised scaffolding called “hang-on platform” is installed to give the roofing crews safe access to the roof frame.

We begin by fixing fascia brackets to the ends of the roof trusses. The metal fascia can then be clipped onto the brackets. After the fascia is secured, the gutter is fixed onto the fascia using a variety of metal brackets. Downpipe droppers are installed as per the architectural drawings and we ensure that the gutter falls towards these points to eliminate any standing water from future rainfall.

We then move on to the metal roof sheeting. Metal battens are installed perpendicular to the roof trussed, usually at 600mm centres. This provides support and a fixing point for the roof sheets. The battens also further connect and stiffen the roof trusses.

60mm roof insulation, commonly referred to as “Anticon blanket” is placed on top of the roof battens. This provides a thermal break and excellent insulation between the metal roof sheets and the ceiling space.

Depending on the height of the building, roof sheets are lifted onto the trusses with a crane or passed up by our roofing crews. They are distributed around the roof structure to their correct position. The sheets are fixed to the metal battens using screws. Barge caps, aprons, box gutters and any other flashing are installed at this time. After all flashings have been secured, fixed, and sealed, the roof is complete and weather tight.

Final checks and inspections are made at this time. We carefully inspect the roof to ensure flashings are installed properly, downpipe locations are in the correct position, penetrations have been sealed well, etc. Once we are satisfied that everything is in order, we can remove the roof scaffolding and proceed to the next stage in the construction process.

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