Proper Pie framing walls
Warm, comfortable, modern - karkasnik be so provided that it is built by all the rules. Particular attention should be paid to the correct pie framing wall. On what should be Frame walls pieWhich materials can be taken to replace the already familiar to us, talk users forumhouse.ru.
We list the main mistakes that some admit when constructing walls karkasnika:
- not take into account the possibility of the dew point;
- not mounted vapor barrier material;
- establish a vapor barrier on both sides of a heater;
- no glued joints of the vapor barrier;
- Do not mount the windshield or set it under the slab covering.
Avoid these errors can only be one sopsobom: use reliable and proven over the years the pie diagram.
Neglect of a vapor barrier and windscreen
Many novice developers do not think about what processes can occur inside the wall. Warming starts to get wet, and the frame rack covered with mold and rot. This is due to the fact that is not set steam and the windscreen, or a sequence of layers of broken walls of the pie.
according to Linkozavr, classic wall karkasnika cake (inside - outside) are:
1. Plasterboard - as a base layer for the interior finishes.
2. Vapor barrier.
3. Insulation (mineral wool).
4. CAP.
5. Windscreen.
6. Exterior finish: siding with an air gap at kontrobreshotke etc ..
The layers in the frame house should be located so, replace this sequence can not be the other, and each element performs a strictly defined function.
Denis Reznichenko, Moscow (nick silent on the forum)
- Vapor is placed inside, as it restricts the entry of moisture into the walls. Gidrovetrozaschita always placed outside, because it prevents the wind blowing insulation protects it from rain and allows excess moisture to escape to the outside.
To understand the need for high-quality vapor barrier is necessary to understand the term "dew point."
The dew point - a state, in which, under the action of low temperature, water vapor contained in the air begins to condense, forming water droplets.
dew point depends on the appearance:
- temperature (indoor and outdoor);
- relative humidity (inside and outside).
The higher the relative humidity, the higher the temperature of the dew point of occurrence.
If moisture condensation occurs as follows:
- insulation gets wet and loses its insulating properties;
- wall begins to freeze;
- frame board covered with mold and rot.
Incorrectly assembled steam
The most common mistake in the construction karkasnika - mounted vapor barrier is wrong. Because of this, the moisture easily passes into the insulation.
Roracotta (User FORUMHOUSE):
- The easiest and cheapest way - to be used as a vapor barrier usual high density polyethylene, not less than 200 microns.
Install a vapor barrier can be in three steps:
1. Polyethylene is installed with overlaps between the rolls, about 15 centimeters on each side.
2. Polyethylene beating stapler on the uprights with a pitch between the clamps of 30-40 cm.
3. All joints are glued carefully glue based on bitumen resin. If the joints are not overlap, then they should be a special glue adhesive tape.
The vapor barrier can be used as a foil insulating. This steam, Due to the foil layer, prevents a couple penetrate the insulation. All joints are glued butyl tape.
Cake frame house with OSB outside
Classic cake framing wall cladding assumes power plant - OSB outside the house. In addition to such a scheme is applied and the other - the so-called "inside" the frame where the power trim orient inside the house. Smotrtim, which is an option.
OSB maloparopronitsaema, and classical scheme violates the basic principle of building the carcass structure - vapor permeability materials should increase from the inside - outside.
Dmitriy1000(User FORUMHOUSE):
- In my opinion, even if I make an internal vapor barrier, in the insulation still falls the dew, because inside the house there is a vapor barrier, and the outside - NDE, and moisture trapped in insulation, nowhere out.
See if it's right actually.
Paulspb(User FORUMHOUSE):
- Total generation of water vapor in the home area of 120 sq. m, with a family of three people will be - 6320 g / day. If the height of the ceiling floor house 2.8 m in volume of the house is approximately 336 m3, the number of "generated" moisture, i.e. remaining in the air after airing amount - 2670 g, or 7.95 g / m3.
Now imagine that the street winter and -10. At 100% humidity in the air contained 2.37 g / m3 water. Moisture inside the house much more about - 10.32 g / m3. This leads to the movement of vapor from inside to outside through the walling.
Paulspb:
- The steam will escape through the walls and ceilings, whose total area is about 240 sq.m.
In this case, through the surface of 1 square meter per day should pass 10.9 g of water.
OSB panels of 20 mm thickness per day passes through one 5.39 g of p m. Plate 12 mm - 8.98 g of p, 10 mm - 10.8 g
Thick OSB 9 - 12 mm has a small water vapor permeability. OSB thickness of 18 mm and above - practically vapor permeability.
Because the outer structure often try OSB sheathing thickness of 9 or 12 mm, the moisture will gradually escape to the outside.
Proper wall frame house: breathable.
You can often hear the expression "breathing" frame walls, that is, such that vapor is passed in both directions and controlled air exchange in the room.
A user with the nickname Vitla offers a cake (inside - out):
1. Plasterboard.
2. CAP.
3. Teploizolyatsiyayu
4. Vetrovlagozaschita.
5. Ventzazor.
6. Exterior finish.
Vitla(User FORUMHOUSE):
- Power trim must be fixed from inside the house. For this purpose, suitable: OSB, plywood, fiberboard, or you can replace them with decking. GCR is taken from the premises excess moisture and gives it back when needed. That is, this kind of cake is obtained by "breathing", which is important for a comfortable stay in the house.
Proper Pie frame wall sheathing OSB
Let us examine whether the right to life, such a scheme has
Ppvlad:
- There is no "breathing" of the walls. My advice - do the standard assembly and reliable vapor barrier.
Roracotta:
- Any right karkasnik needs a reliable vapor barrier.
Air exchange in karkasnike provide ventilation, but not "breathe" designs!
In addition, the power of OSB sheathing installed inside without additional vapor barrier, vapor passes.
Because SIR is mounted with a slight clearance between the sheets (3-5 mm), then no additional vapor barriers through the gap moisture saturation vapor goes to a heater.
Cake frame house with OSB outside - Western approach
Roracotta:
- In Canada, insulate the walls, laying them in fiberglass cotton insulation thickness of more than 150 mm is not profitable.
Do so: mineral wool deposited in a thickness of 15 cm, and outside, on the OSB is attached a foam thickness of 50 - 100 mm.
Thus completely eliminated cold bridges and the obtained structure is very warm.
Silent:
- With this special drainage insulation membrane is placed between the CAP and the foam.
It is not necessary as an additional external insulation to use extruded polystyrene. Because water vapor is practically zero Epps locks moisture inside. This can lead to the dew point on the inside of the heater.
wall construction Options frame without OSB home
In the Scandinavian countries use another option, and a cake (outside - inside) is as follows:
1. Front GCR or windproof film.
2. frame racks filled with insulation.
3. Paroizolyatsiyayu
4. GKL of the crate.
An interesting point: audio OSB or plywood to replace it as a power in such a sheathing frame cake is not used, and all communication is carried out in the air gap between the plasterboard and vapor barrier.
Porcupine:
- In Finland, a cake frame house replacement RSD - basalt wool. Vapor barrier in the design of the cake is placed always! Commonly used conventional polyethylene film.
Lining karkasnike vapor permeable must be less than the outer.
Summarizing, we can say that a key element in the correct frame house - a quality steam!
FORUMHOUSE on all the information collected by Frame dispensation. Here you will find crib beginner karkasostroitelya. You learn what firms actually build in karkasniki in the suburbs. And about Scandinavian karkasniki: What, how, and why - accessibility and visibility.
Watch the video on construction karkasnika on Scandinavian technologies. This video talks about the "right" to karkasnike a second light.
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