If it is located in a conditioned part of the house also remember to insulate and air seal your attic access.
Insulating your roof space.
The technically correct approach depends on a number of factors.
That means insulating the attic floor only not the walls and having vents in the roof.
If you ve reached your target depth but still have a few bags left over keep adding the material at an even depth throughout the space until all the bags your calculations called for are empty.
Pipes water tank and loft hatch.
How to insulate a finished attic.
If your attic is often used or perhaps you plan to convert it in the future you will need to insulate the inner surfaces of the roof.
Before insulating seal any air leaks and make roof and other necessary repairs.
Flat roof insulation always requires professional insulation and damp roofs require professional assessment before work can be carried out.
Whether or not there is an inner roof lining and the total thickness of the roof structure.
Insulating between the joists of your loft will keep your house warmer but make the roof space above colder.
A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling.
Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well.