0.05% Gutter and down pipes shall be over lapped minimum 150mm and joints welded or soldered. The lower level piece of down pipes and gutter shall be on the outer face at joints.
The area around the joints and returns of gutters shall be treated with three coats of zinc paint.
Support brackets shall be placed as indicated in drawings or at a maximum distance of 1000mm apart and at all changes of angles, direction and at ends.
UPVC down pipes and gutters shall be fixed as in above but in compliance with the Sanitary Installation section of this Specification.
