In a house, it looks like an addition, that now is the kitchen , it feels HOT, it doesn't seem to have a very good insulation on the roof at all, the ceiling is already low, so, what can be done on the outside to give it more insulation?, i don't care what it is i just want to give it a GOOD insulation, the roof is flat and to shingles. Any IDEAS? , thanks!
So there is no access above the ceiling, like a crawl space? If you cannot get above the ceiling to look then it will be difficult to determine, what you have or don't have up there. You may want to consult an insulation company for help. They may have ideas to blow in additional insulation. The spray foam that is on the link left by the other person is a foam sprayed on the roof decking and rafters when you have complete access to them. The person below me brings up another point, can you add any soffet vents to help with air flow?
Sorry but there isn't enough info to give a good answer...is there space between the ceiling and the roof to add insulation...there may be enough insulation but no ventilation in the area directly under the roof (atic area) If there is not enough air flow in this area the temperature will skyrocket thus heat the kitchen AND the shingles will deteriorate very quickly.If you still need to add insulation the best way is to put sloped roof (if possible)and add insulation in the space created or you can use foam insulation and re roof ..make sure you seal between the wall system and new insulation and whatever method make sure to allow air to flow under the roof (both inflow and outflow)