How to insulate a steel door

It is believed that the main purpose of a steel door - protecting homes against burglary. However, in addition to its primary function - "guardian", with insulation good metal door makes a significant contribution to the overall energy efficiency of the house. For example, heat loss through the freezing and purged doorway neuteplonnuyu door and inefficient ventilation without heat recovery system can reach up to 20%. On this basis, it becomes clear to all the importance of the installation of reliable and high-quality steel doors.

What is at the entrance put two doors

Entrance to become energy efficient, it is necessary to install two doors - steel, which opens to the outside, and the second - an internal, simple wooden, which opens inside the house. In this case, between the two doors is formed a layer of air, and air, is known to be the best insulator. Such a tandem of two doors will keep the heat in the house, as well as protect the internal door from freezing and fogging in extreme cold.

However, homeowners do not always have an opportunity to put two doors or build a complete platform.

It is also often on the front group, due to lack of funds, put affordable doors that do not differ high quality of manufacturing. Result: this door and metal box in the cold freezes inside the building, up to the formation of ice, and from the crevices between the door and the frame shows through.

Accordingly, the money spent on heating, are emitted into the pipe. What to do? The way out of this situation can become a self-insulation and metal doors, but not least, the door frame.

Step One - choose a sealant

In any case, to get good results, you must first develop a plan. This thesis is especially important during construction. So, before you take up the insulation of the door, first of all inspect the doorway. Most likely, defective doors, because gapping seal between the door leaf and frame, the house comes the cold air outside.

Beer69 (FORUMHOUSE User):

It is not necessary to chase the big door thickness and, accordingly, the insulation layer inside it. The main thing - it's a clear geometry node "box-door", which depends on the material thickness and stiffeners. Frost largely passes through the abutment assembly (the gap between the door and the frame), instead of through the door leaf. The best performance is achieved when installing a double box with two circuits seal.

Even the number of locks and points of their location affect the perfect seal the web to the rubber seal. Optimally, the door locks (2 pcs.), Located just below and just above the middle of the door.

In terms of hardiness, the best type of lock device - a locking lever (package insert) type mechanism. PolinkaPolzovatel FORUMHOUSE

Cheap doors often between the door and frame the wind blows. To fix this, you need to lay around the perimeter of the door high-quality self-adhesive sealant.

If the inspection of the seal found out that he is not fulfilling its function: damaged, lost elasticity, laid with infringements, it must be replaced. Before going to the store for the seal, it is necessary:

• select the material of the seal;
• determine the thickness of the seal;
• select the shape of the profile seal.

The seal may be made of:

• rubber;
• silicone;
• polyurethane;
• plastic;
• Foam.

Most often, to seal the junction node "door-box" used rubber seals. They are durable, resistant to adverse weather conditions, low cost. It has similar qualities and silicone sealant. Widespread, due to the ease of installation, we got a polyurethane adhesive seals.

It is not recommended to set the input group foam seal: because of the low mechanical strength, it is different durability.

It is also important to choose the right gasket thickness and profile. For this it is necessary to measure the magnitude of the gap between the door and the box door. For a guide you can follow the following rules:

• If the gap is less than 13 mm, it is possible to select the rectangular seal.
• If the gap distance is 3 mm, it is possible to select the seal C, K, or E-shaped profile.
• When the gap size of 3 to 5 mm is used to form the seal profile P or V.
• If the gap is more than 5 mm, the seal is established with the shape of the profile O or D.

If the seal is glued with silicone adhesive, prior to applying the adhesive surface must be cleaned from the old seal and degrease. Particular attention should be paid to sealing gluing corners, because when cutting the seal in these gaps may remain.

Step Two - teploizoliruem door frame

Many novice developers believe that it is enough to buy and deliver a well-insulated metal door, and the entrance will be energy efficient. In this kind of often overlooked such a factor as a powerful cold bridge, which is a steel door frame.

Teploicuho (User FORUMHOUSE):

I "looked" at the door frame through a thermal imager and was surprised by how much it stands out in color against the background of a well-insulated doors. I have always assumed that the metal freezes much, but now see how high the heat loss in this node. It is necessary to insulate the box. The only question is, how to do an

Recently gaining popularity metal doors with thermal break. In this case, the inner and outer surface of the web and the boxes are separated from each other by a material with low thermal conductivity. As a result, it eliminates cold bridge.

Using a thermal principle, it is possible to modify the metal door frame cheap doors. To this end, the metal (metal box) is isolated from a warm room. You can do this by setting the finishing accessories box made of wood and casing. As an option - taped before this loop strip izolona metal box.

SergeiSt (User FORUMHOUSE):

Insulation inside the steel door longer needed for soundproofing. Therefore, in the battle for energy efficiency, it is necessary to close all the metal part of the door inside the room warm. That's what we're doing, closing and isolating the metal circuit (door frame) wooden transoms with a rubber seal.

How does such a node, can be clearly seen in this figure.

Also a wooden box at the expense of textured wood ennobles the front group.

Besides the method described above, this option is often proposed insulation of the door frame as foaming its internal cavity. To this end, the perimeter steel frame drilled holes through which, from the spray, orally injected polyurethane foam. Whether this method is justified? Draw the experiment. Take any metal pipe, zapenim it and expose on a frost. Leave for a while and then Touch the metal arm. Will it be warm? We think the answer is obvious.

Additionally, polyurethane foam, expanded, can lead to deformation of the door frame or door stain. Also remember that the polyurethane foam can fall into the transom cavity and had dried, jam crossbars and to disable the lock.

Andrei-AA (User FORUMHOUSE):

I decided to insulate the door frame at the cottage, zapeniv it. I zapenil heartily. As a result of the foam through a small slit fell on the crossbars and froze. Trying to open the door, I first broke the key, then planned to drill the lock or even turn out the door with a crowbar. Calm down and think, I opened the box and grinder with his hand in there, he pushed his fingers crossbars. When this is not completely frozen foam is flowed outwardly from the slot. I had not to spoil the door and seal it with cellophane tape and construction. Then I waited for all the foam dries, so it can be removed from the transom cavity chisel.

Conclusion: a foaming boxes have to be careful!

Andrew 203 (User FORUMHOUSE):

Foaming boxes largely improves the sound insulation than serves the purpose of insulation. This should be done only with the door open, and then, before you close it to lock, wait for complete hardening foam. After which holes need to clean the bolts or drill a narrow chisel.

Step Three - to insulate the door leaf

After completing the previous two steps, go directly to the insulation of the door. There are two possibilities:

• Internal insulation cavity door. What door should be removed and disassembled.

• If the door can not make out, then it will have to warm the surface of the canvas.

When taking the first embodiment as follows:

• Remove the door.
• Disassemble the decorative panel.
• Inserted into the cavity (between stiffeners) vraspor or extruded polystyrene foam.
• Zapenivaem gap and attach the decorative panel back.
• We put the door back into place.

Insulate the door is best extruded polystyrene, as Unlike soft cotton insulation, it does not accumulate moisture and slozhivaetsya with time.

Keid (User FORUMHOUSE):

I own an iron door is insulated with foam inside. Foam on top of a sheet of MDF covered the necessary me color. To me it cost 500 rubles. The door stopped rattling, became harder, has improved its soundproofing. The second door will insulate on the same principle.

The door is insulated so you can obbit lining, glued artificial leather, brushed decorate the board. This opens a wide scope for creativity. It is not necessary to drill holes in the canvas doors and try zapenit it from within or through these holes to fill in the cavity of the granular foam. Such upgrading insulation and metal doors "blind" can lead to jamming and failure of the locking mechanism.

If painting the metal door can not be gently removed without destroying it (for example, it seamed), the insulation will have to be mounted on top of the door.

Waad (User FORUMHOUSE):

In my view, even from the budget of the "Chinese" doors can be made suitable for giving an option. Because I have not folding door, I stuck to it foam rubber "under the skin", 1 cm thick, and painted with paint from a container. It turned and warm and solid.

Sallli (User FORUMHOUSE):

I also ran into a problem: how to insulate not folding metal door. Cutting grinder - not an option, because inner fabric - this edge stiffness. And part of the locking mechanism is attached to it. Thinking I knew how to get out of this situation.

Validating done so - at first drilled hole and gently zapenil door frame, which provided its 100% sealing and increased noise insulation. The outer part of the door pasted advertising film. Then this film with liquid nail stuck extruded polystyrene thickness of 2 cm.

foil sticker on the door to allow in the future to dismantle the heater without a time-consuming operation to remove a door leaf with adhesive. The film can be easily separated if heat its industrial dryer.

Also, as a temporary option for emergency or emergency cases, it is possible to temporarily "insulate" the door thereby.

Inside, in the doorway, hangs thick and heavy fabric, which when leaving or entering the house leans to one side. It turns out the similarity curtains or blinds. The fabric is hung up is not close to the door, and a short distance from it (5-10 cm). If the depth of the opening allows, it is possible to hang two curtains are also a short distance from each other. It turns out a mini-platform. Due to the air layer warm home will not be forced out.

read Thread All of the locks and doorsAnd that How to make a metal door with his own hands. Ballroom the recall of a metal door with a thermal break. FORUMHOUSE also recommended to know the answer to the question: as a self-install interior doorsAnd read the article about how to properly equip the vestibule and the entrance area in a country house. Check out the video, which shows the Features installation of doors and windows in the house of SIP panels.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

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