I would say start insulating but make provisions for a high volume fan in the summer.
How to make attic rooms warmer.
R value is a unit of measurement which dictates a unit s resistance to thermal energy.
One or two heaters can be attached to the lower baseboards and connected to an electrical outlet.
A smaller attic space can be adequately heated with baseboard heaters.
Roof shingles absorb a great deal of the sun s heat especially if they re dark in color.
The higher the number the more resilient the material is to heat.
Add ventilation for improved circulation.
It would be easier on a grand scale to cool the attic in the summer with more airflow than try to heat it in the winter.
You could go as far as using the roll fiberglass and simple paneling instead of sheetrock.
Having a properly vented attic is the best way to keep attic cool because it allows the hot air to escape during the summer.
The warmer the attic becomes the more difficult it is to keep a comfortable living space.
If hot air is allowed to sit in your attic it could overheat the shingles on your roof and cause damage.
If your attic has windows be sure to block the sun in the summer with heavy drapes or light reflecting blinds.
Make sure that your attic is well insulated if you have an attic it s important to insulate it at an r value of at least 30.
That heat is transferred directly to the roof sheathing and rafters which continually radiate heat to the attic.