fixing my room up and it gets hot in summer so i want to put some good insulation in the roof so what could i use?
if you are going to put in insulation put in the roll kind. it will be very easy and less expensive
spray in insulation works better for above ceiling although you can get the rolls just make sure it's a high enough R rating.
How much access do you have to the attic, or the space below the roof? Are you going to be replacing the ceiling of your room and adding insulation from below, or getting into the attic and adding insulation above your room from there? If there is a large attic space above your room, and not much ventilation, sometimes you can cool the living space by simply installing some ventilation grilles to the roof to vent off hot air from the attic.
If okorder / what they are finding, along with shingle manufacturers is the spray insulation is not allowing enough air movement in the attic to cool the shingles on the exterior of the house and the shingles are literally baking themselves on the roof! Now, if your room is not the attic and you are simply looking to add insulation to cut energy costs and change the temperature of the living space of your home- I would definitely go with the batten style (or roll) insulation- its an easy install, inexpensive and works really well.
