All existing methods of attaching insulation to the wall inside or outside the house: an overview of options

The way you install insulation on your walls can have a significant impact on energy efficiency and comfort. There are various methods for insulating, both internally and externally, and each is appropriate for a particular set of circumstances and requirements.

You could look at options like adhesive-backed panels inside the house; they work well and are simple to install. As an alternative, insulation can be installed over already-installed drywall or installed as rolls or batts between studs. Depending on how your home is laid out and what insulation you want to achieve, each method has advantages.

Energy-efficient exterior insulation techniques for your home include spray foam and the attachment of foam boards. These solutions frequently offer a seamless shield from the weather, which is beneficial in more extreme environments.

We’ll go over each of these strategies in-depth in this post so you can weigh the benefits and drawbacks of each. You can choose a solution that best fits your needs and your budget if you have the right information.

4 ways to attach insulation to the wall – aspects of choice

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The building’s walls are constructed in compliance with GOSTs and regulations. They have to fulfill the requirements, the most crucial of which is strength. They must also be warm in addition. More thermal insulation materials are installed in order to achieve this. This article discusses how to attach insulation to the wall.

Attaching insulation to the wall: features

The installation of insulation is nearly identical inside and outside the room. However, some distinctions exist:

  1. Indoors, the lathing method is used. This is a created frame made of wooden slats. The material is fixed into it.
  2. Outside, this method is rarely used due to the properties of wood. Basically, thermal insulation is attached with foam glue or dowels are used.

Temperature indicators, wall loads, consistent humidity, and other elements influencing the fastener type and thermal insulation are considered when choosing a fastening technique.

How to firmly attach insulation to any wall

There are three primary techniques for attaching to a building’s walls.

I lathe. Build the ventilated cladding frame base. For this, corrosion- and temperature-resistant galvanized metal profiles are selected.

II: adhesive. There are subtleties to adhering thermal insulation material. The first step is to select an appropriate composition that satisfies all criteria. Moisture resistance comes in second. Furthermore, it is uncommon for insulation to be "set" on glue. Umbrella dowels are also utilized.

Two varieties of glue exist:

  • dry mix;
  • foam glue.

The initial variety is made in bags. In accordance with the directions on the package, it is diluted. Cylinders are used to produce foam glue. It does not require mixing or diluting with water. Using a construction gun, it is applied.

In order to repair the thermal insulation, some preliminary work must be done. Dust must be removed from the surface, and then a plaster layer must be applied to level it.

III: Dowel usage. This is the primary technique for firmly attaching thermal insulation. Both secondary and primary fixations are made with dowels.

Every technique has unique characteristics and nuances. You must evaluate the wall surface and weigh the variables influencing the materials (temperature, humidity, and frost resistance) before deciding on a fixation technique.

Mineral or stone wool

To lay mineral wool, build a lathing out of beams of wood.

The slats should be spaced closer together than the cotton wool’s diameter. The cotton wool will fit and hold in this instance when it is close to the base.

When purchasing thermal insulation in slab form, which is more rigid, the slats are arranged in a cellular pattern.

Dowels or cotton wool slabs can be joined together. However, the lathing is required.

Slats that are thicker than the cotton wool are used for the lathing. This causes a space to open up between the finishing coat and the insulation. This will improve the wall’s thermal insulation.

Penoplex

Penoplex is frequently used for high-rise residential insulation. It’s fixed with glue and dowels.

Polystyrene foam must be adhered to with glue on a level surface that has been primed. The bottom of the support strip is filled, and glue is then applied to the penoplex sheets. To ensure that the adhesive composition sets, you must hold the material slightly after applying the sheet.

The sheet is perforated with holes for the dowels once the glue hardens. They’ll generate power.

Polyurethane foam

This polymer is based on polyurethane components and is porous and gas-filled. Among its many unique qualities is its low heat conductivity. It is frequently used in cold climates because of this.

It is unaffected by water or abrupt temperature changes. Foam is the product of polyurethane production. applied in two methods to the surface:

  • spraying using equipment;
  • pouring – for this, special equipment is used and voids must be equipped.

Up to 50 years are covered under the insulation’s warranty.

Mounting methods

Multiple factors influence the fixation method selection. The surface base is made of wood, brick, concrete, or gas blocks.

  • Glue is used as a dry composition, requiring preliminary preparation: a container for mixing, a construction mixer, spatulas. For outdoor use, certain brands are used that meet all requirements: frost resistance, moisture, temperature changes, maximum heating.
  • Liquid glue in cylinders is applied using a construction gun. It should also have the following features: adhesion percentage, attitude to moisture, service life.
  • Umbrella dowels. There are 3 types: plastic, with a metal pin, with a metal nail and a thermal head. Mostly polymer products or with a thermal head are used.
  • Lathing. They are created extremely rarely due to the properties of wood. Attitude to moisture, temperature changes. Sometimes the lathing is made of metal profiles. They are galvanized – this is an advantage, since water does not affect them, as well as the temperature regime.
  • And also use insulating plasters. They are applied in 3 layers on a reinforced mesh (facade).

With dowels to a concrete wall

Concrete thermal insulation is adhered to with dowels. The selection of dowels should be based on two criteria:

  1. Base – hollow, porous. Based on the concrete base, the load-bearing capacity of the fastener is calculated.
  2. Fastener type. Plastic fasteners are not designed for heavy loads.

The antennae along the rod provide a strong bond between the dowel and the concrete. After screwing in the nail (core), they straighten out in the concrete’s cavity. There are dowels that have a driven in core as opposed to one that is screwed in.

In order to secure the insulation to the concrete base, the following preparatory work must be done:

  1. Clean the surface from the old coating – lime, chalk, paint. If there is plaster – it must be inspected.
  2. If there are protrusions on the surface, they are removed with a power tool. Cracks, cracks are expanded, reinforced, plastered.

  1. A surface with mold is dried, cleaned and treated with special means.
  2. After the work is done, the surface is covered with a primer.

The groundwork has been finished.

You now need to attach a galvanized profile or a wooden auxiliary strip below. The insulation will be held in place and kept from "sliding" down by it.

Fungi to a brick wall

The process of installing tile insulation on a brick surface is comparable to that of a concrete foundation. The following is the action algorithm:

  1. Surface preparation. Checking it for evenness.
  2. Surface treatment with primer.
  3. Insulation boards – polystyrene foam, penoplex, expanded polystyrene – are spread with an adhesive solution. Either use a notched trowel and apply glue evenly over the entire surface, or dot application – place dots of solution in the corners and in the center.
  4. A holder bar is fixed at the bottom of the wall. Attaching insulation boards.
  5. After the glue has set, each slab is additionally secured with dowels in the corners and in the center.
  6. All slab joints are covered with the same solution.
  7. The last step is surface covering. Decorative plaster or finishing materials.

Other methods of fastening

Mineral wool, or roll insulation, is a material that is commonly used to insulate wooden buildings. A frame is required in order to fasten it. The following is how insulation is installed:

  1. Fix the vapor barrier film.
  2. Install a control strip at the bottom of the wall.
  3. Fill horizontal or vertical wooden slats along the width (slightly less) of the insulation, which will be higher than the thickness of the insulation.
  4. Cotton wool is placed in the resulting niches.
  5. A windproof layer of membrane is created on top.

There will be fewer cold bridges the denser the cotton wool is laid.

Another way to repair the insulation is to use self-adhesives to glue the material together instead of adhesives. Consider penofol. Roll up the sticky inner side of the material to be adhered to the surface. The surface needs to be treated for this.

What does the result depend on

Insulating the inside of the house is just as important as insulating the exterior to keep it warm and quiet. Soundproofing material indicators are present in many types of insulation.

The best material is selected for the interior cladding—mineral wool or foil insulation—if external insulation is not feasible. Penoplex, or foamed polyurethane foam, is used for exterior walls (polyurethane foam).

Practical advice from professionals:

  1. Before applying foam glue to the penoplex or foam plastic board, the surface must be moistened with water. This will create good adhesion of the glue and the board.
  2. If there is a sag at the bottom of the wall, then the control strip can not be attached. In this place, carry out waterproofing and proceed to the installation of the insulation.
  3. If the boards of the material are fastened in a checkerboard pattern, then the seams will not coincide, accordingly there will be no cold bridges.
  4. You cannot leave the thermal insulation material in the open air after installation. It is necessary to cover it with putty or cover it with wind protection.

Long-term use of the fixed insulation is possible if you adhere to the instructions.

It’s important to approach the insulation process responsibly. You must research the material’s qualities, shortcomings, and features in order to choose the right one. Additionally, pick the appropriate technique for adhering to the surface. This determines how the work will turn out. Certain thermal insulation materials can only be installed beneath ventilation siding, while others have the option of having three layers of plaster applied on top.

Method Description
Adhesive Bonding Insulation boards are glued directly to the wall using a strong adhesive. This method is quick and effective for smooth surfaces.
Mechanical Fasteners Insulation is secured with screws or nails through mechanical fasteners, often used for larger panels and irregular surfaces.
Expanding Foam Spray foam is applied between the wall and insulation, expanding to fill gaps and create a tight seal. Ideal for irregular spaces.
Insulation Plaster A special plaster mix containing insulation particles is applied directly to the wall, combining both insulation and finishing layers.
Drywall Over Insulation Insulation is placed on the wall and then covered with drywall or other finishing materials. This provides a smooth, finished surface while insulating the wall.
Insulated Panels Pre-fabricated panels with built-in insulation are attached to the wall. These panels are often used for both exterior and interior walls.

Several factors, such as the type of insulation, the material of the wall, and your particular needs, must be taken into consideration when selecting the best technique for attaching insulation to walls. Whether you’re insulating the outside or the inside of your home, each technique has advantages of its own and can be applied to a variety of situations.

Adhesive systems, mechanical fasteners, and stucco systems are popular choices for external walls. Although they allow for a smooth installation, adhesives may not be appropriate for all kinds of walls. Conversely, mechanical fasteners need to be drilled into the wall but provide a strong hold. While stucco systems can produce a beautiful and long-lasting finish, their installation may be more difficult.

Techniques like spray foam, adhesive, and batt insulation with drywall are frequently used inside the home. For smaller spaces, adhesives are quick and simple, but drywall and batt insulation together provide a more conventional solution. Although it can be more costly, spray foam insulation offers superior air sealing and insulation.

Every technique has a unique set of benefits and possible downsides. When choosing the best insulation attachment method for your project, it’s important to take your budget, the climate in your area, and the specific requirements into account. Making an educated decision will contribute to long-term comfort in your house and effective insulation.

The method you use to attach insulation to your walls can have a significant impact on the comfort and energy efficiency of your home insulation. This article examines all the main methods for insulating walls, both inside and outside the house.It also lists the advantages, disadvantages, and applications of each method so you can choose the best one for your house.

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Veronica Gerasimova

Interior designer, author of books on the design of residential premises. I will help you make your home not only functional, but also beautiful.

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