You can insulate your house or build cheaply by adopting these simple techniques which are as follows:
Weather-stripping – it is a process to seal gaps or cracks around the door, walls, or windows.
Covering the Floor – On average, the heat loss through the floor is close to 10 percent. The covering floor should stop heat from escaping.
Thick Blackout Curtains – Windows are a prominent medium of heat loss. Hanging thick blackout curtains against the window is a good and cheap way for insulating a room.
Plugging chimney when not in use – Block your chimney when not in use and for that you can use a chimney balloon to accomplish the same.
Spraying foam insulation – Spray foam contains properties that can tackle almost all areas in a home and is one of the best materials to use while insulating your home.
Close the doors and unused room – Closing the doors in your home can help in tracking the heat which keeps it warm for a more extended period.
These were some of the common methods/techniques through which you can insulate without spending much.