14.—(1) External walls must be of sufficient thickness and be of a suitable impervious weather resisting cladding which will afford protection from moisture from the ground and precipitation.
(2) Damp proof course must be adequate and present as and where appropriate. External decoration must be sound and of sufficient quality to last at least 3 years. Any defective joinery shall be properly repaired and decorated.
(3) Rendered surfaces and parapet walls must be in good condition with copings and flashings secure and complete. All brickwork must be sound and vertical with continuous pointing. Chimney stacks must be in good repair with chimney pots securely fixed.
(4) Roofs and rainwater goods must be in a good and serviceable condition. Any loose slates, tiles or aerials, which either presents a possible hazard or may cause defects to the property, should be made safe.
(5) Gutters and down pipes should be fitted, in good condition, clear of blockages and empty into a gulley, adequate soak-away, watercourse or sewer as practicable which in turn should be readily accessible for clearing blockages.