Insulation of a wooden house with mineral wool from the outside for siding

Insulation plays a crucial role in improving the resilience and energy efficiency of a wooden house. Applying mineral wool insulation to the external walls prior to siding is one efficient way. This method shields the wooden structure from moisture and weathering while simultaneously increasing thermal performance.

Mineral wool, a natural rock or slag-based insulation, has various benefits for insulating wooden homes. Its superior thermal qualities minimize heat gain in the summer and reduce heat loss in the winter, assisting in the regulation of indoor temperatures. Furthermore, mineral wool resists fire, which is essential for protecting wooden buildings.

There are several steps involved in using mineral wool to insulate a wooden house from the outside. To access the walls, it might be necessary to remove any exterior siding or cladding that is currently in place. After that, layers of mineral wool insulation are put in place between the wall’s wooden joists or studs. Usually, this insulation is positioned tightly to reduce gaps and increase its efficiency.

To further improve its thermal qualities and shield it from moisture, the mineral wool insulation is covered with a weather-resistant barrier, like a vapor barrier, after it has been installed. Lastly, the insulation is covered with exterior siding, which can be made of composite materials, wood, or vinyl. This siding gives the house more protection from the weather in addition to enhancing its aesthetic appeal.

We explore the practical advantages and important factors that homeowners should take into account when using mineral wool for exterior siding insulation on wooden houses. By emphasizing this technique, we demonstrate how mineral wool improves energy efficiency, weatherproofs, and prolongs the life of the wooden structure and siding. The purpose of this article is to give readers a clear understanding of the benefits of this insulation technique so they can make informed decisions about the facade of their home.

Advantages of mineral wool

The characteristics and composition of mineral wool

Minvat brand is very brief

Why is mineral wool becoming such a popular choice for insulation in residential buildings? The simple answer to this is that this material outperforms other heaters in one or more dimensions due to the sum of its benefits.

1. Mineral wool does not burn. It can only melt, and only at very high temperatures. Therefore, this insulation is better suited for buildings made of wooden beam or logs than combustible foam.
2. Mineral wool is easy to handle – it does not require the use of special equipment, like an ecovata. The installation process is simple – I took it out of the package, cut it (if necessary), laid it, fixed it with dowels or glue.
3. Mineral wool is not subject to shrinkage over time and is not attractive for rodents, insects, fungus and mold. In addition, it is able to maintain its properties for several decades.
4. And like any good insulation, mineral wool has extremely low thermal conductivity values-0.03-0.047 W/(m*K) depending on the brand of material and temperature outside.

Concerning brands of mineral wool

The choice of mineral wool

The top 7 producers of mineral wool

When you walk into a construction store, you’ll notice a wide variety of mineral wool with different qualities. It begs the question, what qualities should a material with the potential to insulate a house outside have?

1. Type – stone or basalt cotton wool. Slag or glass wool – not the best choice for the walls of a residential building. The causes are high alkalinity and the content of substances that are harmful to humans (this is especially true for slag).
2. Density – from 80 kg/m3 and more. This is due to the fact that the laid material experiences heavy loads. And so that under their influence the insulation does not crush, does not lose its shape and heat -insulating qualities, it should be quite dense.
3. Dimensions – most of the mineral wool for external wall insulation is sold in the form of plates with a length and width of 1200 by 600 millimeters. The thickness varies, and can be from 50 to 150 millimeters.
4. Since insulation is carried out outside, mineral wool should be hydrophobic. Absorbing water, this insulation loses its thermal insulation properties by 50-70%. It should be borne in mind that high humidity and its sharp differences are not at all uncommon. Therefore, the ability not to absorb moisture and condensate is very important for mineral wool. However, this is not enough, because when warming the walls of a wooden house, take care of high-quality hydro- and vapor barrier.

Mineral wool varieties

It is worthwhile to talk about the thickness of the thermal insulation layer separately. Because the tree itself possesses some insulating properties, it doesn’t need as thick a layer of mineral wool as silicate brick or concrete does. For instance, a 10 centimeter insulation layer will work best in an average latitudine for a wooden house with 15 centimeter walls. The amount of mineral wool needed will be halved if the walls are 20 centimeters thicker.

Of course, the thickness of the wall insulation should be higher if you reside in an area with a sharply continental climate and harsh frosts. Additionally, you must lay the mineral wool sheets in two layers if the 50 or 100 millimeter-thick sheets are insufficient for thermal insulation.

Online method for calculating insulation thickness

The materials that fit the criteria and are appropriate for wall insulation are listed in the table below.

Baswool 80-Inch Vent Facade

Standard 50 for Technonikol Technicians

Prices for mineral wool

Minvata

Tools and materials

The materials needed to insulate a wooden house with mineral wool siding are listed below.

1. Mineral cotton – it is obvious that without it there can be no talk of any insulation. Before you go to a construction store, make measurements of the areas of all walls of the house and subtract the area of ​​all windows and doors from the resulting number. By dividing the result into an area of ​​one sheet (for a sheet of 1200 by 600 mm is 0.72 m2) mineral wool, you will find out how much they need to buy. If it is planned to insulate in two layers – multiply the resulting number by two.
2. Material for the frame – it can be either a wooden beam with a cross section of 50 by 50 mm, or a steel profile similar in terms of properties. You may also need P-shaped metal suspensions. About what they are for and how used will be described below.

UD and CD profiles for the frame installation

The crate’s form

Luxens antiseptic impregnation

Membrane that blocks vapor

The facade dowel’s thermal insulation design

Mineral wool can be used to insulate residential buildings in two different ways: frame and frameless. Both techniques are listed below.

Prices for Popular Puner models

Perforators

Frame insulation of the house with siding finish

Installation plans for Minvata

In the first method of installing thermal insulation, a heater is placed between the elements of a wooden beam or steel profile that has been mounted on the wall. After siding is installed and an external crate is installed, the process is complete. Let’s now examine the procedure in greater detail.

Mineral wool insulation for the house’s facade

First stage: Surface preparation. The wooden walls are sealed and insulated at their cracks and crevices, and any remaining finish is removed along with any debris and dust. Additionally, all protruding components—such as window sills, shutters, and pipes—are disassembled.

Phase two. Antiseptic treatments are applied to the walls to prevent fungus and decay.

Phase Three. The walls are covered with a vapor barrier film that is fastened to them using construction brackets. The membrane sheets are connected to one another by 10 to 15 centimeters, and the seams are securely sealed using acrylic tape.

Installing the frame is the fourth stage. The profile or beam, which has been pre-treated with an antiseptic, is installed vertically, with the space between the elements running the length of the mineral wool plate. Self-tapping screws are used to fasten the profile to the wall, and nails are used to fasten the beam.

The insulation’s frame

The ideal spacing between theframe and the

The fifth phase. Sheets of thermal insulation are placed in the gaps between the frame’s components. 4-6 plate dowels are used to fasten the insulation to the wall. Mineral wool pieces should be used to seal any remaining cracks or gaps.

Using a knife to cut slabs of mineral wool

Insulation in two layers

The sixth phase. Over the insulation and frame is a vapor barrier film. The joints are overlapped and taped together just like before.

Installing a film that blocks wind

Stage seven. The frame is joined to a fresh layer of crate, which will serve as a siding frame and ventilated facade. Using a small cross-sectional beam is acceptable in this situation.

The ventilated gap device.

This is where the insulation ends, leaving only siding to complete the house.

Crucial! In the event that two insulation layers are intended, the second frame is installed with respect to the siding and perpendicular to the first. For instance, the first frame bars should be installed if the siding wall decoration is done horizontally. Additionally, the bars of the second insulation layer ought to be positioned vertically, or perpendicular to them.

The insulated facade’s scheme

Insulation for siding

Prices for thermal insulation materials

Thermal insulation materials

Video – insulation of external walls with siding finish

Enhancing energy efficiency and safeguarding the structure of a wooden house can be achieved through the practical and efficient application of mineral wool for siding on the exterior. Prior to installing siding, homeowners can significantly reduce heat loss during the winter and maintain cooler indoor temperatures during the summer by insulating their wooden walls with mineral wool.

Because of its superior thermal insulation qualities, mineral wool is especially appropriate for wooden homes. It minimizes heat transfer by efficiently trapping air pockets within its fibers. By lowering the need for heating and cooling, this insulation technique not only helps to maintain a comfortable indoor climate but also lowers energy bills.

Additionally, adding mineral wool insulation outside the wooden walls provides an additional layer of moisture protection. Over time, rot and decay can result from moisture seeping into wooden structures. Homeowners can protect their homes from these possible problems and prolong the life of the wooden facade by adding siding and insulation.

All things considered, choosing to use mineral wool for siding exterior insulation on a wooden house is a prudent choice for long-term structural stability and energy efficiency. By controlling interior temperature, it guards against moisture damage, improves comfort, and eventually makes the home more resilient and sustainable.

Video on the topic

Insulation of a wooden house with stone cotton wool outside #2

How to warm a house from a beam outside (not difficult and not expensive)

Insulation of a wooden house from a bar. How to properly insulate the facade of a wooden house B100mm.