If your walls need insulation it may involve a bigger project of adding new sheetrock over insulation or having it blown into the walls.
How to insulate the floor of a add on room.
You may even be able to warm it up enough to make it a room for all seasons.
Ensure you insulate thoroughly but avoid squashing insulation material as this will seriously compromise its effectiveness.
Top tips for insulating a floor.
When insulating a bonus room floor you ll usually be working from below.
If you have a three season room adding an extra layer of insulation to accessible areas can make a big difference.
Best option insulate your bonus room with spray foam.
The job of insulating the floor is easier if there is room to crawl underneath but if there isn t it can still be done.
Locate the blocking under the kneewalls.
If it is above grade winter drafts will make the room too cold to use no matter how well the walls and ceiling are insulated.
Remember to seal all the gaps between the skirting board and the floor to prevent draughts.
Insulating the floor is an important step in porch conversion.
If the area of the heated bonus room above the garage is smaller than the area of the garage ceiling you ll need to install blocking between the joists to provide an air barrier where the floor insulation stops.
And yes there are health concern issues associated with it.