if you want to save money at home on electricity and fuel the most effective thing you can do is to insulate the ceiling in your home in order to always have the desired temperature with less expense in air conditioning or heating to insulate the ceiling it is convenient to use extruded polystyrene sheets instead of thermal insulators that set at the installation site since while drying they release extremely toxic and even carcinogenic vapors the extruded polystyrene square sheets can be half an inch thick in 1 meter per side in order to mount the insulation called false ceiling you can use special structures or even metal profiles easily obtained with any supplier of materials for steel windows an angular type material is required for fasting your false ceiling - the walls I personally use the metal profile used extensively in sliding steel windows which looks like this one after fastening the angular metal profile to opposite walls in some 15 centimeters from the room ceiling you need to place a 1 in 3/4 inch by 3/4 inch metal profile sections of a suitable length we will call them cross beams next wooden moulding strips are fastened with screws to each cross beam to hold the extruded polystyrene frames as shown naturally the distance between the profiles should be enough for the polystyrene sheets to rest loosely on the molding and filling neatly in place once the piece is in place a short wooden molding with small pieces of cross beam material is used to cover the joints between polystyrene sheets and to provide additional support so the frames will not sag keep working until you reach the end of the room where's Molly polystyrene pieces are used to suit the available space that completes the fall ceiling the simplest part is to insulate the window glasses by using poly bubble material of the type used for packing delicate objects apply a thin film of water to the glass and stick the poly bubble material with the flat side against the glass on the inner side of the glass the metallic part of the windows can be covered with coroplast a kind of corrugated cardboard made with plastic material to insulate the door frames a special adhesive tape is required the gap on the bottom of the door can be sealed with rubber foam usually intended for pipe insulation open it at the cut and slide it under the door and attach it to the outside of the door with a molding nailed or bolted to the door silicon can be used as an adhesive on the inside of the door in a further video we will show you how to insulate the walls I hope this video has been useful for you thanks for watching and please subscribe to my channel