Please see P23 of the Freeflow brochure shown below to check compatibility.
Gutters can be fitted either level or with a slight fall. Laying the gutter with a fall will increase the flow capacity and increase the area of the roof that can be drained. Silting will also be reduced with a gutter installed with a slight fall.
When measuring gutters to be fitted, ensure that the gutter will extend to the marks on the fittings. Fittings are marked to indicate the position to which the gutter should be inserted to allow for thermal expansion.
Each situation is specific but as long as clip centres aren’t greater than 800mm apart. A fascia bracket should be fitted within 150mm of all stopends and angles.
It is important to ensure gutters are fitted as high as possible to the roof edge and the roof edge should not project beyond the centre of the gutter cross section.
Ensure that a gap of 10mm is left at the top of the downpipe for thermal expansion. Fix additional pipe clips as required at maximum intervals of 2m. If the downpipe is subject to impact, extra clips should be considered. Two different pipe clip fittings are available, a flush fitting and where a gap is preferable between wall and pipe, a stand off clip.
Gutters and downpipes should be cleaned out regularly, at least annually, more frequently in locations where there is wind borne debris, e.g. close to trees and sandy areas. A mild detergent solution is ideal when cleaning dirt from external surface areas. Regularly check the security of gutters, downpipes, fittings to ensure they have not been dislodged or come loose and that the gutter extrusions have not moved beyond any thermal expansion allowance marks in the fittings. Please refer to manufacturers guide for more information.