Installation of doors in aerated concrete and other cellular

Cellular types of concrete in general and aerated concrete in particular are rapidly squeezing out the brick and cinder block that is familiar to everyone. The advantages of aerated concrete weight, but there are certain disadvantages. Due to the porous structure of the material, the installation instructions for doors and windows are somewhat different from the traditional ones.

Preparatory activities

Many owners are afraid of the fact that aerated concrete blocks, having a cellular structure, are easily destroyed. Because of this, the robbers can simply pull out the metal door that is inserted, without bothering to open it. In part, they are right, because if you mount windows or doors using traditional technology, then such a danger exists.

Specifically, the technology of tie-in will be described below, and now we will focus on the preparation. First of all, it should be noted that both windows and doors need to be ordered with a small gap. That is, the size of the structure should be less than a window or door opening by 20–60 mm.

Before installation, the surface of the blocks must be prepared. Many craftsmen are advised to simply glue the outside of the waterproofing, self-adhesive tape. But we think differently.

Aerated concrete is a hygroscopic material and at the junction there is a high probability of moisture ingress. Therefore, it is more expedient to impregnate the blocks with a waterproofing, reinforcing soil of deep penetration. Thus, you not only provide reliable waterproofing, but also strengthen the surface of the block to a depth of 50 mm.

Mounting technology

Не стоит пугаться устанавливать подобные конструкции своими руками. Mounting technology конечно предусматривает дополнительные затраты на укрепление, но цена этих материалов несоизмеримо меньше оплаты работы профессионалов.

Installation of a metal door

As you know, metal is a heavy material and installing a metal door in aerated concrete is a fairly responsible job.

Especially if you prefer reliable domestic doors made of thick metal with good protection.

• As mentioned earlier, metal dowels in a cellular concrete, which come in a set with a door, will not be held securely, therefore you can do here in two ways.. We recommend an easier way. For it, you will need to additionally purchase a metal corner and take care of the welding machine.
• For a standard entrance metal door, a 35 mm corner is enough. If you need to install a large double door or garage door, we recommend taking a corner of at least 50 mm.
• Corners are cut to the size of the opening and are applied to the inside and outside of the opening.. Between themselves, they need to be cooked with several jumpers.
• Jumpers better cut from sheet metal with a width of about 50 mm. The thickness of the jumpers is selected depending on the capacity of the structure. For a standard door, a metal thickness of 1.5 - 3 mm is sufficient. It is necessary to place them in places of fastening lootki.

Tip: some owners try to save money by welding only two vertical, opposite constructions. Such a door, of course, will hold, but we advise you to make a completely all-welded covering structure from the corner. The price will increase slightly, and reliability will increase significantly.

• The frame is fixed on the jumpers. In this case, due to the U-shaped grip, the structure will hold well without that, but to be sure you can screw in 1 self-tapping screw with a length of at least 120 mm into each jumper. Note that the door will still be mounted on the lintels and the locking screws should not match.
• Further, the door loot is inserted in the level and fixed with wooden wedges.. For fixing the door, you can also use powerful metal screws with a length of less than 150 mm. But if dowels are closer to you, then the holes are drilled with a conventional drill, and then special dowels for aerated concrete structures are fixed in them.
• After securely fixing the door loot, both in the wall and in the corner frame, it is necessary to lubricate the outside with sealant and blow out all the gaps with foam. For better sealing, experts advise that after hardening and trimming excess foam, from the inside, once again lubricate the joints with sealant.

Important: Shabashniki may offer to hammer several long pieces of reinforcement into the walls and fix the door on them. It can pass with a brick wall, but on aerated concrete such a door will be loosened for 1 year and you will have to do everything anew.

The video in this article shows how to mount doors.

A few words about the installation of windows

Installing windows in aerated concrete is somewhat easier than installing metal doors, but still requires attention.

Windows are not subjected to such loads as doors, plus the weight of these structures is much less.

• The window frame is mounted on special metal anchor plates.. Plates can be bought at any hardware store or cut with your own hands from metal with a thickness of 1.5 mm. Initially, the plates need to be fixed with screws on the ends of the window frame.
• After this, it is necessary to clearly install the window frame in the opening and fix it using pre-prepared wooden wedges.. The distance from the frame to the wall is desirable to do the same.
• The best option when the window opening is in advance composed of aerated concrete blocks and a quarter. A quarter is an L-shaped protrusion, located outside, into which the window block is inserted. If this detail is not foreseen in advance, then a false quarter is made.

• Anchor plates are bent and tightly joined to the wall. They are fixed as well as the doors, with the help of long screws 120 - 160 mm. After fixing the plates, the wooden wedges are pulled out and the gap, along the perimeter, is filled with finely porous mounting foam. As well as in the case of doors, the gap on both sides must be coated with sealants.

Important: both installation of doors, and installation of windows in a gas concrete can be carried out in one more way. It provides training during construction. For this purpose, special U-shaped blocks are mounted around the perimeter of the opening. Subsequently, you can lay a wooden beam in them or pour reinforced concrete and install structures on them.

The video in this article shows the installation of windows in aerated concrete.

Conclusion

We outlined the basic principles of installation. It should also be noted that interior doors, as well as any metal-plastic or wooden structures are mounted on the installation of windows technology. The use of metal welded frame is allowed, but in this case it is not advisable.