Will be insulating and boarding out loft soon !
Before I insulate between rafters (know rules ect for air gap) want to make sure tiles are ok and sound so no future problems !
The tiles from inside loft seem to be fitted onto rafters with wood running in opposite direction, tiles sit in this timber stripping and rafters and then between is dabs of mortar !!!
THIS OBVIOUSLY DOES THE JOB AS MOST TILES AND ROOF SEEM SOUND !
Some mortar has come out from back off tiles only say 1% of whole area ( seems may be slight water come in at these points, but not enough to drip down)
Want to make rafter area sound for insulation and boarding out so my question is ?
1; Do I just put more mortar on where it is missing (as i say this seems to be how it was done originally! not convinced myself this is enough)
2; Could I run felt between all rafters
3; Do I do both , or what method should I use
Any HELP would be good , thank you Mr Wood