How not to build a loft: typical mistakes

How to avoid problems with the operation of attic under construction

In the segment of private suburban housing are common enough at home with a loft, where additional space is not formed by walls and a roof. The debate about the feasibility of building attics do not cease from the moment of their appearance, and is unlikely to end in the foreseeable future. Nevertheless, many prefer "sesquioxides" a two-story house - someone lays a loft in the project right away, someone turns cold attic into the living room, and for someone this superstructure only opportunity to gain area. But in any of these situations in the construction often make mistakes that are fraught with serious trouble. Consider how you should not do in order not to alter.

Content

• design flaw
• Error at warming
• Error when installing vapor barriers

design flaw

Despite the fact that the importance of design as a key to successful construction repeatedly proven and beyond doubt, and a sufficient number of private traders now prefer to build "of head. " In the best case, taking as a favorite source visualization of the network. Skepticism about the full-fledged projects both typical and individual, based primarily on the poor quality of the design. Attic is initially limited to a particular form factor - standard solutions for these facilities simply do not fit. And as for the simplification and acceleration of the work they are used, not really thinking about the convenience of the residents, you may have the following situation.

Perhaps not the biggest problem, but bearing in mind that comfort is made up of little things, and fixtures are constantly, every time to bend in three deaths that still pleasure. At the design stage it is necessary to link the desired layout in the attic with a roof structure - than it is flatter, the less living space. If even professionals make mistakes in the construction of the project without their credibility even further. And certainly, it is much easier to make changes on paper or in a graphics editor than to detect the problem in an already built house.

Also, when choosing a project with a loft, should understand that "from the air" additional area is not formed and the cost of proper insulation and finish will be significant.

danestr

Member FORUMHOUSE

... Well done the attic will be more expensive in the final finishing, check for yourself ...

Attic - is the ability to pay taxes on half floors with both a single-storey house, but not a way to save directly on the construction. At the design stage should carefully calculate the estimate and if the budget is "bursting at the seams", to give preference to a simplified version.

Old master

Member FORUMHOUSE

From my experience - the project single-storey house without attic in construction is cheaper, faster, more practical.

During the construction of the project without that two-story houses that in homes with a loft is the most common problem - the stairs. Or rather, the lack of sufficient space beneath it, often laying the openings are too small, and to write on them a safe and comfortable design then almost impossible. And although there are trade-offs, it is better to lay the "correct" the ladder immediately.

qwer222qwer

Member FORUMHOUSE

... If the house has two floors, the staircase with zabezhnymi steps - a hell of evil. I'm such a cost gap ligament ...

egen

Participant FORUMHOUSE

I add: LADDER! Immediately defines in detail with the location, size, geometry and design! Otherwise - everything is very expensive and time ...

Error at warming

As of ignorance and because of a desire to save at any cost.

• Lower insulation thickness - thickness of insulation depends on the region of residence, and certainly smaller stack layer, is guaranteed to receive the "detox" winter and "steam bath" summer. Optimal two-layer heater assembly when the first layer of boards laid between rafters, and a second, top, blocking potential cold bridges. With regard to specific values, they are tabulated, but repledge better than "nedolozhit", once contacted the insulated attic.

world of Roofing

Member FORUMHOUSE

SNIP in Moscow and the Moscow area of ​​insulation thickness of 150 mm - is a minimum, and preferably 200 mm. In general, the greater the thickness, the less heat loss and heating costs. In many European countries are now building energy efficient homes: wall - 500 mm; ceiling and roof - 300 mm. So they are not heated.

• Mainstream rolled insulation instead of plate or special - yes, the price difference is solid, but it is specific and designed for horizontal surfaces. Due to the lower density and more porous structure such insulation sits on the slopes, and eventually form cold bridges.
• Mounting flaws - it is inadmissible the existence of gaps between the rafters and insulation boards, laying must be carried out only vraspor. If for any reason a step rafters significantly more or less than the width of the plate, it is permissible horizontal cutting and styling.

Life hacking of one of the participants of the portal.

Muzzy555

Member FORUMHOUSE

Now insulate basalt wool carcass attic. Actually, surfaced annoying problem, which few people pay attention, and then wonder why the cold. Board on the rack at 99% goes planed, it is clear that the surface of a board is very rough to the touch, and for heat insulation is just a rasp of some kind. Hope that this "rasp" does not poderetsya edge of the plate when laying vraspor 15 cm inside the racks, is just silly.

What I am convinced of their own experience - to use cheap translucent gidrovetrozaschitu through which the outside of the wall during the day considered fine cracks in the insulation joints and struts. Despite the fact that he tried to mount it properly - just cotton sgryzlo of rough rack (you can be sure for yourself on their frame walls and ceilings, would rack of planed boards, the problem would not exist). Then I slit propenyl, severing the rotten windshield, but this is only the struggle with the consequences, rather than the cause.

And in order to prevent damage to the insulation and to simplify laying of slabs, strips from a piece of the ridge Muzzy555 "Created" to adapt. Now, "we insert these things between counter and stove - and voila." Stove is not stripped of a rough reception and easily comes into place, sliding down the metal.

Error when installing vapor barriers

When the insulation of attics, thermal insulation to protect the circuit from the vapor coming out of the room, and external influences (convective heat transfer, condensation), use specialized membrane. And here nalazhal plenty of options.

• Wrong choice - instead of a diffusion membrane, which produces steam from the heater, put a vapor-proof film, locking steam in thermal insulation.

Ark1821

Member FORUMHOUSE

When erecting attic builders laid under the metal vapor-proof film. Accordingly, after warming moisture will accumulate in the insulation.

Tellingly, all it has done on the project, there ventzazor, kontrobreshetka done correctly, but with a vapor barrier "namudrili".

After consulting with the forum users, Ark1821 I decided to cut pieces of film between the rafters and paste pieces diffusion membrane.

A metal that drops from getting into the joints, the membrane will have to mount the stapler to the rafters, and the film is cut out with a large overlap (7 cm) so as to overlap the stitches. If as a coating was soft tile on which condensation has formed, you could just paste the new pieces on the perimeter with little overlap.

• Incorrect installation - installation of the membrane inside out, which is why the moisture again accumulates in the insulation. Although the film on the roll is always folded inside out and "person" as applied to the logo, some still manage to make a mistake.
• Wrong hardware - only a specialized tape used to fix the blade.
• Leaky circuit - both because of poor sizing joints (little overlap, nonspecific band), and due to careless installation into abutment areas. The most problematic places where you must carefully carry out the maximum stacking and fixing of the membrane, are the ventilation risers, chimneys, window boxes and wall connection.

As the thermal insulation and vapor control circuits must always be tight. The presence of thermal bridges due to installation errors insulation or increased heat loss due to insufficient thickness, it is the extra heating costs. A moisturizing insulation due to flaws in the vapor barrier, it is not only heat loss, but also in the long term alteration. Wet insulation - potentially wet elements of wooden truss system.

Output

Undoubtedly, the "rake" especially individual case and to "collect" all make mistakes almost impossible. Even avoiding the most common, you can significantly simplify your life and save time and nerves and finances. It is enough to:

• build the project, it is desirable that the developed or convert it to a specific house;
• use specific materials and comply with the standards;
• comply with mounting technology roofing pie attic.

The fact that in general is a penthouse and features of its care can be read in one of the previous materials. To get the most useful area of ​​the attic floor - consider roof SudeikinAs one of the possible options. What to do when critical errors already admitted in the article about how to repair attics. In the video - a frame house with an attic. Their own hands, without any extra costs.

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