Vapor barrier for the walls of a wooden house

click fraud protection
Vapor barrier walls

What is vapor barrier

Vapor barrier is a joint work of heat-insulating building materials and special structures for protection against steam. Does not allow him to penetrate. It relieves condensation of the house, while not allowing it to dampen surfaces, which significantly increases the comfort of the structure.

Content:

  • What is different from waterproofing
  • Why is it necessary
  • What is fraught with the lack of vapor barrier of a wooden house
  • Device Methods
  • The choice of material for vapor barrier of a wooden house
  • Technology of work
  • Necessary materials and tools
  • Detailed step-by-step guide to actions
  • Which side to install the vapor barrier to the insulation
  • Features of vapor barrier of a wooden house
  • Prices

What is different from waterproofing

Waterproofing is a protection, of various kinds of designs, against the penetration of all kinds of moisture. Thus, the difference between vapor barrier and waterproofing is that the vapor barrier does not pass steam through itself, and the waterproofing prevents moisture from entering. But the ideal way to protect the house is to share them in interior decoration.

instagram viewer

Why is it necessary

In any warm living room, steam forms with a sufficiently high pressure. He seeks to leave the room and this happens through the walls, ceiling, floor. In order for steam to go out unhindered, it is necessary for the heat-insulating building materials to have vapor transmission properties. During the warm season, steam passes well through auxiliary materials, but in the winter it gets stuck in them.

Thus, the insulation becomes wet and begins to rot. In order to prevent such troubles, a vapor barrier material is laid together with the heater. If the walls are insulated from the outside, then you can abandon the vapor barrier. Be sure to apply when finishing the roof or basement.

Vapor barrier walls

What is fraught with the lack of vapor barrier of a wooden house

For wooden house steam is most dangerous than for other designs. If you do not protect it from the formation of steam and condensate, then decay may begin. If the house is sheathed with insulation from the inside, this will only aggravate the situation, since the tree under it will begin to whine and decompose. An unpleasant odor of dampness will begin to appear and soon a fungus will form, which is then very difficult to get rid of.

Device Methods

Vapor barrier has two types of devices: painting and gluing.

Painting is carried out using bituminous and asphalt mastics, varnishes from polyvinyl chloride, heated bitumen mastic. Before applying bitumen mastic, it is necessary to warm up to 180 degrees Celsius.

Okleechnaya is carried out using waterproofing materials. They are produced in rolls and have the appearance of a film. Such a film is placed in one or two layers, for better sealing use construction tape.

The choice of material for vapor barrier of a wooden house

The main types:

  • Anti-condensation film - a means of additional protection, prevents the dripping of condensate, which contributes to their rapid drying.
  • The membranes are diffuse. Special building material that allows you to get out of the steam that has accumulated indoors.
  • SBS Bitumen are polymer materials of new technologies. Due to their elasticity, they seal the surface well.

Materials:

  • Polyethylene film.
  • Polypropylene film.
  • Diffuse membrane.
  • Liquid rubber.
  • Hot bitumen.
  • Penofol. It has protective functions against cold, water and steam. Laminated material equipped with aluminum film. The filler is polyethylene foam.
  • Armofol. Made of glass mesh. Resistant to high humidity and temperature.
  • Alucraft. Consists of polyethylene foil and kraft paper.

Technology of work

The technology of the work is simple and can be done independently:

  • The first layer must be laid waterproofing material.
  • Then they lay the insulation.
  • And only on top of these materials is it necessary to lay a vapor barrier.
  • If necessary, another layer of building materials of an insulating type is laid. If diffuse membranes are used, then they must be laid with the smooth side to the insulation.
  • At the last stage, it is necessary to carry out facing.
  • One of the main points is ventilation. In its absence, even the best and most modern materials will not perform their functions.
Vapor barrier walls

Necessary materials and tools

Construction tools occupy far from last place at vapor barrier installation. When working with insulating material, you may need the following tools:

  • construction stapler;
  • staples for him;
  • stationery knife;
  • duct tape;
  • self-tapping screws;
  • the required amount of consumable material.

Detailed step-by-step guide to actions

  • The first thing to do is to choose what material will be used and calculate the required amount. When calculating, you need to remember that the vapor barrier material is overlapped, which should be 10-15 cm.
  • It is necessary to carefully seal tight spaces and various foreign objects.
  • Waterproofing material is laid on the wooden surface of the house.
  • The next step will be the insulation of the insulated surface.
  • And only after that you can begin to vaporize the room.
  • The vapor barrier must be laid on the surface in an even layer and attached using a construction stapler. In this case, the chimneys are additionally insulated so as not to damage the material.
  • The overlap must be leveled and glued with a special tape so that the canvas is solid.
  • To strengthen the entire insulation make a special crate. It will also not be superfluous at the cladding stage.
  • Facing.

Which side to install the vapor barrier to the insulation

Depending on the chosen building material, its styling will also vary, relative to the insulation layer. The smooth side of the material should always be in contact with the insulation. If a material having a metal surface is used, then it must be laid with the aluminum side to the inside of the house. This is necessary so that heat, reflected from a metal surface, remains indoors, and does not leave it.

Features of vapor barrier of a wooden house

The building material for vapor barrier must be hermetically glued, otherwise the steam will penetrate through it and settle on other materials in the form of condensate. And it is most dangerous for wooden structures, as the tree is rotten and very quickly destroyed.

The vapor permeability of a wooden house is very high and depends on such factors as the thickness of the beam, the tightness of the grooves, the presence of wood defects.

It is necessary to take into account the fact that the house can be built from a tree that has been dried or has natural moisture. When using dried building materials, special problems do not arise. If during construction a tree of natural humidity was used, then cracks inevitably form, logs change in size, and this happens over five years. It is for such a structure that vapor barrier is vital.

If you follow all the rules of installation, the house will last for many years and does not require a partial replacement of walls and wooden floors.

When vapor barrier is necessary to prevent common mistakes:

  • Leaking sealing of overlapping building materials.
  • Using narrow tape. If the construction tape is less than 5 cm wide, then it will inevitably peel off.
  • There is no stock during installation at the window openings, because the house shrinks.
  • Insecurity of vapor barrier from direct sunlight. Ultraviolet is harmful for most of these building materials.
  • Poor tightness due to uneven curved surfaces on which insulation is applied.
  • Use of polyurethane adhesive tapes. These tapes do not stick well and fall off over time. Which violates the tightness of the insulation and leads to its effectiveness to zero.
Vapor barrier walls

Prices

When choosing a quality building material, you need to pay attention to the price.

The prices for vapor barrier materials vary greatly. It depends on the composition, whether the product is single-component or if several components are included in its composition. The density of the building material is also taken into account, since it depends on it whether the vapor barrier will fit in one layer or several. Do not forget about the manufacturer, as he has the right to evaluate his own building material. Price fluctuations also occur depending on the region.

Arch in the kitchen - design and manufacture by your own hands

Arch in the kitchen - design and manufacture by your own handsWalls

Content Variations and design of arch How to make an arched hole with your own hands for 7 steps from the GKL How to make an arch with the help of a "padded" interior arch with a rectangular vau...

Read More
Decorative plaster in the kitchen - information for the buyer and a master class for finishing

Decorative plaster in the kitchen - information for the buyer and a master class for finishingWalls

Content Pros and cons - what you need to know if you still doubt What kinds are there? Features of the work Decorative plaster is a finishing structured or fine-grained smooth coating for wall...

Read More
Liquid wallpaper in the kitchen - 5 questions and answers

Liquid wallpaper in the kitchen - 5 questions and answersWalls

Content Question 1. What is a "liquid wallpaper how do they look and why are they called that? Question 2. What is the essence? What are the pros and cons? Question 3. How to avoid the appearanc...

Read More
Instagram story viewer