Space available on the back of the piers should be wide enough to accommodate the guide channels.
Headroom from bottom of lintel to lowest point of ceiling is ideally 300mm or more to accommodate the whole of the box enclosure.
The Headroom of less than 300mm is not a problem, as any of the exposed face of the powder coated aluminium box enclosure that shows below the lintel acts as a neat facia.
Tip: If the reveals are too narrow to accommodate all of the guides, upto about 30mm of the guides can show into the opening. Check that the back of the brick piers and the back of the lintel make a flat continuous surface to offer the guides and box onto.
Measure dimensions 1 and 2 shown in the above measure up form very accurately. Allowing for only run out in the brick piers and any run out in the floor or lintel, take the tightest sizes.
Tip: Order your door 10mm narrower and 5mm to 10mm smaller than these tight sizes.
When fitting flat onto the front of the opening a flat continuous fixing surface is required for the box and guides to fit onto.
N.B. All roller doors can show marking on the back of the top 5 or 6 slats over time where the slats roll onto the shaft rings. These would be visible and do not constitute a warranty claim.
Tip: The “back” of the shutter curtain is seen with this external fit method. Foil Laminated Woodgrain slats are not laminated on the back of the slats so are not suitable for this external fit method of installation. Any other colour slats have same colour on the back.
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Estimated lead time on Aluroll insulated roller garage doors