Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

How to build an energy efficient, that is, a truly warm frame house? The answer is obvious - using innovative technology that is gaining popularity in the Scandinavian countries. The key specificity of the creative technical solution is the use of a combination of stone wool and PIR slabs for thermal insulation.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Thermal insulation of a frame house

Scandinavian technology for the construction and decoration of frame houses

In Finland, the method of building residential buildings is determined not only by climatic conditions and national traditions, an important priority is the use of modern materials and technologies, as well as the advantage quality over the speed of development.

Traditionally, most of the structural elements of a building in Finland are designed, manufactured and assembled at the factory. In the workshops, cutting, fitting, and often complete assembly of modules is done, which only remains to be installed on the pre-poured foundation.

One of the features of the Finnish wireframes is the absence of " headers ”( header - a version of the crossbar for relieving stress from the upper lintels of window and door openings) , double pillars and in the upper trim of the walls . The rigidity of the structure is provided by only one crossbar running along the outer or inner side of the racks immediately under the upper strapping. The diagonal stiffening beams are mounted only when building houses in regions with high wind loads.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Nodes of the Finnish frame house

The roof structure is predominantly self-supporting truss-truss, allowing rational use of the inner space of the attic.

An insulated facade is a prerequisite for an energy efficient home, along with ventilation and high-quality windows.

The combination of these elements makes the house truly cozy and saves on heating in winter and air conditioning in summer.

The classic Scandinavian technique involves the use of:

  • of the main insulation. A layer of stone wool 100-150 mm thick is placed between the frame posts;
  • cross-warming. Another layer minvata , but already 50 mm thick, is placed on the frame racks inside the house;
  • vapor barrier membrane between main and cross insulation.

A new method of warming frame frames differs from the traditional one:

  • the use of state-of-the-art PIR plates instead of stone wool for cross-insulation;
  • the absence of a vapor barrier membrane between layers as irrelevant in this case material.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Combined insulation

Thanks to combined thermal insulation, it becomes possible to achieve several goals at once.

  1. Improving the energy efficiency of the house thanks to the use of PIR plates with a record low thermal conductivity, as a result, reducing the cost of heating in winter and air conditioning in summer.
  2. Exclusion of cold bridges arising between the frame posts and the bar used during insulation with stone wool.
  3. Reduced construction costs due to the elimination of vapor barrier film from the overall estimate. PIR boards are laminated on both sides, and it is the aluminum foil that protects the insulation from condensation.

  4. Construction of an environmentally friendly and completely safe house for health. PIR boards, even when heated, do not emit toxic components into the atmosphere, which is certainly important for the internal insulation of a house.
  5. Saving free living space. Fifty-millimeter PIR-plates have a degree of heat saving not less than a layer minvata twice as thick.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Advantages of LOGICPIR boards

By the way! Most residential buildings in Finland have a private steam room.

For warming a sauna in a frame house, we recommend using LOGICPIR Banya from TECHNONICOL.

Features of production and characteristics of LOGICPIR boards

The innovative LOGICPIR insulation is produced on a fully automated line, which excludes possible disruptions to the technological process. All components of the insulation are mixed under a pressure of 160 Pa, thus guaranteeing all the declared properties of the material at any point. From a special mixer, the polyurethane mixture is poured through valves onto the foil lining - the outer contour of the insulation, which protects both from moisture and steam. The mixture is foaming, expanding in volume and covered with a second foil layer or a second liner contour.

The process of foam growth in volume is absolutely controllable, all slabs are made of strictly required thickness. Insulation is transformed into a solid slab in a laminator at a temperature of ure + 70 ° C, where millions of cells filled with inert gas are baked. This is how the uniquely low thermal conductivity of TECHNONICOL products is achieved.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

One of the production stages

Small size of cells, their ability is long time to remain sealed and to keep the inert gas inside is a guarantee of maintaining the declared thermal conductivity of the insulation throughout the entire service life of more than 50 years.

Quality control and technical characteristics (strength, thermal conductivity coefficient, stability of geometric parameters during heating and cooling, fire safety) of each batch of PIR insulation is carried out by the staff of the TECHNONICOL laboratory.

Insulation specifications LOGICPIR

Indicator name Measurement unit Indicator
Thermal conductivity W / (m * K) 0.022
Compressive strength kPa 150 *
Water absorption % 1.0
Operating temperature ° C -65. ..

+110

* At the request of the customer, it is possible to manufacture LOGICPIR boards with increased compressive strength.

Geometrical parameters of slabs with L-edge and flat Sparing insulation

Dimensions of one slab, mm Thickness of slabs, mm Quantity in a package, pcs. Insulation area, sq. m **
1190 x 590 30 8 5.62
1190 x 590 50 5 3.

51

** Knowing the area of ​​insulation in one package, it is not difficult to calculate the required amount of material . To do this, it is necessary to divide the total area of ​​the inner walls of the frame house into the area of ​​one package. The final value can only be rounded up.

For example, if the total area of ​​the walls is 100 sq. m, and plates with a thickness of 50 mm are used for insulation, then all you need is:

100: 3.

51 = 28.49

Round to a whole number and get 29 for board packages LOGICPIR.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

LOGICPIR

Thermal insulation of the PIR frame house with plates

The plates are installed from bottom to top in a strictly vertical plane. For the convenience of joining the plates, there is an L-edge, which is a specially molded end on four sides for the most tight connection and creating a continuous sealed circuit without cold bridges.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Tight joining of the ends of the slabs

One of the indisputable advantages of PIR insulation - ease of installation, which means that there is no need to fit the slabs to the crate, as well as the low weight of the insulation.

One package of LOGICPIR L boards (5 pieces with dimensions 1190 x 590 x 50 mm) weighs only 7.91 kg.

For better tightness, the joints of the slabs are processed with LOGICPIR glue-foam and glued with a special TECHNONICOL aluminum tape. Belt width 50 mm.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Everything that is necessary for insulating a frame house:

It is recommended to apply polyurethane foam adhesive at a temperature from -10 to +35 degrees Celsius, that is, installation of the internal insulation circuit is possible in any season of the year.

In addition to gluing the joints, glue-foam is applied to the hard-to-reach places of the passage of communications through the walls to prevent possible heat leakage from the premises.All-season glue has high adhesion, is resistant to aging, moisture, does not promote the growth and development of pathogenic mold spores.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Applying glue-foam

To securely fix the slabs, bars are used that are attached vertically to the frame posts with self-tapping screws suitable in length (holes for self-tapping screws are drilled in advance). The bars themselves create a gap that allows you to accurately mount engineering systems: pipelines, electrical wiring, etc.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Bonding the ends of the plates

This method of installation allows you to maintain the integrity and tightness of the entire internal loop of insulation.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Lathing for decorative finishing

LOGICPIR slabs are suitable for insulating not only walls, but also the floor , ceiling, attic and roof.

Note! The TECHNONICOL product line includes lined alumolaminate PIR plates. Multilayer aluminum has a high chemical resistance to aggressive environments, so LOGICPIR is recommended for use when pouring wet and semi-dry screeds, including when arranging warm floors.

It is permissible to use drywall or other materials as the finishing of the interior walls.

Frame house using Finnish technology: innovative insulation technology - an encyclopedia of facades from A to Z

Exterior view.

The finishing of the facade will be fixed on the crate.

Outside, the frame posts are sheathed with HDF plates, covering minvata . Bars 25-30 mm thick are fastened on top of the slabs with self-tapping screws for further finishing vent facade smart siding, blockhouse , planken or other materials in accordance with the wishes and financial capabilities of the owner of the frame house.

An air gap of 25-30 mm between the decorative finish of the facade and the high-density fiberboard (HDF) is necessary to prevent the accumulation of condensation and level the associated with this negative consequences.

Thanks to the combined insulation, the comfort in the frame house will be maintained at any season.

Two-sided technological mowing of the upper and lower planes of the slabs serves as a "thermal mirror", reflecting thermal energy, which makes the house cozy and warm in winter and cool and fresh in summer.

Video - Frame house building with PIR plates

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