How to insulate a metal door with your own hands

With the lowering of the air temperature, the main issue is the insulation of the entrance doors, since heat losses can reach up to 30%.This affects not only the internal discomfort in the room, but also in the accounts for utilities. In order to insulate the metal front door, you need about two square meters of insulation and no more than one working day of time. This is not a big expense, which will pay off quickly.

Selection of thermal insulation material

1. Mineralized glass wool
2. Basalt plate
3. Polyfoam or expanded polystyrene
4. Plug

This is a standard heat-insulating material that can be purchased in building stores. It is not prone to rot and is inexpensive. However, as a heater can be used any improvised filler able to insulate the metal door. It can be:

1. Pressed wood shavings or sawdust( ASPS)
2. Old wadded or wool blanket
3. Batting material
4. Wooden edging bars

Your metal entrance doors, insulated in this way, reliably prevent heat leakage from the room.

Ways of warming the steel entrance door

There are several options for insulation of the door metal, the price of materials from the chosen method does not depend. Depending on the type of metal entrance door and structural nuances, the insulation is made from the inside, but less often from the outside. On how to insulate the metal door, let's look at an example using foam, but the installation rules for all types of thermal insulating filler - the same. The visual aid of this simple process on how to insulate a metal door with video instruction is at the end of the article.

Mounting of the insulation to the inner frame

1. Standard sheet of fiberboard, two sheets of foam 1x1 meter, silicone, self-tapping screws and a can of mounting foam plus a simple set of tools is all that is required for your external metal doors to be insulated.
2. Open the sheet of fiberboard according to the size of the door. With a drill, a knife and a jigsaw - cut out the holes for the peephole, the keyhole and the door handle.
3. Polyfoam is cut to the size of the free cells specified by the stiffeners and firmly adheres to the back side of the door leaf. In it, the necessary functional holes are also made.
4. It is important to note that any slots and even stiffeners lead to cold bridges. The elimination of vulnerabilities can be done with a mounting foam.
5. Thermal insulation filler, must fit tightly all the free space. Surpluses and the protruding bumps of frozen foam are removed with a knife for gypsum board.
6. Prepared sheet of fiberboard is attached to the frame by screws. Mounting is done in steps of 10 - 15 cm along the perimeter and horizontal stiffeners. Work must be done from the top down.
7. Upon completion of the work, the inner sheet of the fiberboard will be the basis for the decorative finish of the door.

Thermal insulation of metal doors with fixed panels

1. The task of insulating a metal door with non-removable panels is complex, but feasible. Consider the option of warming such a door with a loose heat insulator. Pay attention to the design of the embedded lock. Such insulation is possible only if the lock has a protective pocket and the loose mixture can not get into the mechanism and will not lead to blockage of crossbars.
2. Otherwise, the question of how to insulate a metal door is solved by thermal insulation from the outside. Depending on your choice, you can sew around the perimeter of the outer side of the frame a frame of a wooden beam or a metal "P" - shaped profile.
3. The heater is fixed in the same way as above. The front side of the metal entrance door is sewn with a protective facade covering. The material needs to be selected taking into account the location of the door.
4. If your front door is in the entrance, then you can do the usual fiberboard, but if the exit from the house leads directly to the street and is exposed to atmospheric precipitation, then the material should be chosen more resistant to their negative influence. Plastic or galvanized metal, will cope with this task.

Insulation of the door frame of the entrance door

1. In order to keep heat in the room, it is not enough to insulate only the front door. Leakage of heat, can also occur in the places of docking the door frame with the wall and directly the door itself.
2. All visible cracks, caulked with a paste, cotton wool or felt. Carefully tamper with a screwdriver or a narrow spatula. Slightly moistened, the surface is cemented with cement mortar or finishing putty.
3. Wider cracks, it is better to blow out with foam. The frosted froth that has protruded is removed with a sharp knife and shpaklyuyut.
4. For sealing the perimeter of abutting the door leaf to the main box, there is a self-adhesive tape with a foam rubber or rubber seal. On the market of construction products, a wide range of similar products with various functional parameters and technological qualities is offered.
5. The door seal is correctly glued, creates a vacuum plug between the double doors at the entrance or simply seals the insulated entrance metal door.