Hi,
Never realised before until now, that replacing more than 25% of a roof is notifiable to building control.
Now after doing some reading, I understand that part of a replacement or repair job consisting of more than 25% of the surface needs to be insulated to meet the requirements before it will be signed off.
Also from what I understand it is recommended this insulation is 100mm?
So, my next question is...
If you have an existing flat roof, and are re-surfacing it, 100mm is a heck of a lot to add to its height if it wasnt originally designed for it.. the sides are going to be really high!
Therefore, is it possible to insulate like stud walls, and push the 100mm insulation in between the rafters in a tightly fitting manner... or would this not meet the building requirements?
Thanks
Never realised before until now, that replacing more than 25% of a roof is notifiable to building control.
Now after doing some reading, I understand that part of a replacement or repair job consisting of more than 25% of the surface needs to be insulated to meet the requirements before it will be signed off.
Also from what I understand it is recommended this insulation is 100mm?
So, my next question is...
If you have an existing flat roof, and are re-surfacing it, 100mm is a heck of a lot to add to its height if it wasnt originally designed for it.. the sides are going to be really high!
Therefore, is it possible to insulate like stud walls, and push the 100mm insulation in between the rafters in a tightly fitting manner... or would this not meet the building requirements?
Thanks