No roof underlay
Listed under: Interior, Roof, cladding, roof space, roof cladding, concrete or clay tiles, metal tiles, profiled metal
Cause
It was common in older houses with metal roofs and houses with tiled roofs for the roofing to be installed without underlay
Repair
- if there is no evidence of moisture problems, leave as is. Where there are signs of dampness, particularly with metal roofs, install flexible roof underlay to the underside of the rafters and support with plastic tape at 300 mm centres