Difference between revisions of "Spray-on Roof Insulation"
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* Does not permit water drainage or evaporation | * Does not permit water drainage or evaporation | ||
* No air gap between insulator & tiles/slates to allow airflow for drying | * No air gap between insulator & tiles/slates to allow airflow for drying | ||
| − | * Increases chances of structural timber rot, and repacing a timber roof structure | + | * Increases chances of structural timber rot, and repacing a timber roof structure isn't cheap. |
* No ability to inspect timbers after insulation is sprayed | * No ability to inspect timbers after insulation is sprayed | ||
* Prevents re-use of roof covering. This creates an additional expense & in some cases renders historic fabric unreusable. | * Prevents re-use of roof covering. This creates an additional expense & in some cases renders historic fabric unreusable. | ||
| − | |||
==Discussion Threads== | ==Discussion Threads== | ||
Revision as of 15:37, 6 September 2008
Spray-on Foam Roof Insulation has been much criticised for its problems.
Problems
- Does not permit water drainage or evaporation
- No air gap between insulator & tiles/slates to allow airflow for drying
- Increases chances of structural timber rot, and repacing a timber roof structure isn't cheap.
- No ability to inspect timbers after insulation is sprayed
- Prevents re-use of roof covering. This creates an additional expense & in some cases renders historic fabric unreusable.