before the facade of the house is completed, it is necessary to lead the gutter from the roof somewhere. it is best to connect the

air architecture beams best black brick bricklaying bricks brown building completed concrete connect construction detail drain drainpipe equipment exterior facade flow format gray ground gutter guttering house installation insulation lead mason mortar necessary pipe pipeline plastering porotherm protection pvc rain residential roof roofing rooftop sewage sewer site snow solid somewhere square structure system technology temporary working