Reveal Fixing -
Using the drawing , measure the reveal opening width at the top, middle and bottom. Taking the smallest width. For the height, measure the right, centre and left, from the window cill to the underside of the opening Again, taking the smallest height. The top and bottom tracks are secured and fixed within the reveal. The number of bars required is determined by the width of the window opening. ( see Removable Window Bars main Page. )
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Face Fixing
If the bar unit is to be on the face of the opening, then allowance must be made for packing box section required for the top and bottom. 50mm x 50mm Pre - Powder coated aluminium packers are used to face fix the unit to the wall. (Fig C below) showing side view of the bar unit. The number of bars required is determined by the width of the window opening. ( see Removable Window Bars main Page. )
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