MOISTURE INGRESS AND DRAINAGE STANDARD
All rental properties must be kept dry from the ground up, with the Healthy Homes Standards requiring effective drainage and, where necessary, a ground moisture barrier to prevent rising damp.
Drainage includes working gutters, downpipes, and outfall systems. If the property has an enclosed subfloor( where more than 50 per cent is blocked off), a moisture barrier is mandatory unless installation isn’ t reasonably practical.
COMMON MOISTURE INGRESS AND DRAINAGE COMPLIANCE QUESTIONS
What does good drainage include?
The property must remove stormwater efficiently with functioning gutters, downpipes, and drains. Gutters must not overflow or be blocked.
What’ s a ground moisture barrier?
It’ s a heavy-duty polythene sheet or specialist barrier laid on the ground under an enclosed subfloor to stop rising damp.
What makes a subfloor‘ enclosed’?
If 50 per cent or more of the perimeter is blocked by walls, cladding, garages, or natural obstructions like earth.
Are there any exemptions?
Yes- if installing the barrier would require major building work, pose health / safety risks, or isn’ t reasonably practical for a professional to complete.
24 LANDLORD INFORMATION GUIDE