Issue |
Defect Cause |
Defect Remedy |
Damp penetration to walls |
- Limited protection from roof overhangs
- Lower level construction more exposed to ground moisture
- Original damp-proof courses failing with age
|
- Improvement of external drainage
- Repair or installation of effective damp-proof course
- External render repairs where appropriate
|
Inadequate insulation |
- Original construction with minimal insulation standards
- Single-storey exposure with high roof to wall ratio
- Heat loss through large roof areas
|
- Comprehensive loft insulation
- Consideration of external wall insulation
- Improved glazing where original
|
Poor access to roof space |
- Limited loft hatches in original design
- Awkward roof configurations
- Truss designs limiting movement in roof space
|
- Installation of proper loft hatch and ladder
- Boarding for access where appropriate
- Consideration of improved lighting in roof space
|
Dampness in ground floors |
- Failed damp-proof membranes in concrete floors
- Ground moisture affecting single-storey construction
- Limited sub-floor ventilation in suspended floors
|
- Installation of proper damp-proof membrane
- Improvement of ground drainage
- Enhanced sub-floor ventilation where applicable
|
Roof spread |
- Age-related movement in roof structure
- Original design limitations
- Additional loads from replacement coverings
|
- Installation of ties or strapping
- Reinforcement of roof structure
- Addition of restraint where walls are affected
|