How to increase the usable area in the reconstruction of the house

Not uncommon situation where for some reason the house, only recently seemed quite comfortable, it is close or cottage should be turned into permanent, while increasing the area. Also often need major renovation and expansion occurs when buying a house with the "experience". Receive an increase of squaring in two ways - attach room or build on. For many of the attic floor superstructure more preferred embodiment, since no additional pour a foundation, and not always at annexe enough space at the site. And among the artisans of the portal add-lofts is popular enough, and the experience they share with those who are just deciding what to do and what to do.

What is the attic

By definition, a loft refers to residential or non-residential premises in the attic space. However, in practice there are only uninhabited cold attics and attic - this residential (year-round or seasonally) space under the roof insulated particular configuration. Unlike the full second floor in the attic of the walls formed by the roof slopes, which is somewhat limited its functionality. Nevertheless, attic floors at all times were popular, not lost it so far and is unlikely to lose in the future.

Modern technologies allow to organize in the attic space of any purpose - it can be a bedroom, office, nursery or guest room. Today is not a problem located in the attic and a full bathroom as needed, not to mention the bathroom with a shower. Kitchen in the attic - a phenomenon quite rare, mostly they appear in the case when it comes to two families and a separate course from the street.

Perhaps the main condition for the existence of room under the roof at a height of 2.5 meters at a central point.

Acceptable same minimum sanitary norms - 2.3 meters, although in practice there are other dimensions.

Features of the superstructure of the attic

Whether loft overbuild decide, based on two factors:

• the availability of technical capabilities;
• expediency.

The basic question - whether the wall pozhivshego home construction withstand the weight of the expected, even if it is about the most lightweight, wireframe version. So the first thing - at least a rough calculation of the bearing capacity of the walls and foundation. There will be play a role not so much the type of wall material, as the state of the walls. Other log cabins with a half-century history of the much stronger relative to the "youthful" stone buildings.

The expediency of such a global reconstruction depends on the dimensions of the house - if it is too compact, and the attic with a view of the design features will tiny. It is believed that if the width of the house is less than five meters, the attic floor overbuild meaningless. However, in some cases, a small little room at the top is better than nothing, as long as the wall stood and pulled the wallet.

But even if the wall is strong, has multiplied the load must be evenly distributed, for which the perimeter of the stone foundation is poured Laying nets.

When pouring it directly Laying nets laid under mauerlat fasteners (studs) which is firmly fix the entire structure in place.

Without adequate insulation even impossible to build a loft for a seasonal residence, since no insulation in the summer in the room will steam. Attic is insulated along the entire perimeter, to form a closed loop - overlapping, sloping and vertical walls, gables. Today, the insulation can be anything - from the typical plates, coils and mats to the blowing, filling and spraying. However, regardless of the species, its thickness should be sufficient to provide normative coefficient of thermal resistance of the wall (tabular data by regions).

If you talk about the mineral of plate heat insulator used most often, it is sufficient for the majority of regions of 150-200 mm. Effectively put the thickness of several layers with overlapping seams, to minimize heat leakage. Since the attic belongs to the heated premises, great importance is attached to the device vapor barrier to the warm air does not provoke of condensation in the insulation or roofing pie.

For a free moisture output, which, in spite of all the barriers will accumulate between the insulation and the roof covering is required ventilation gap of at least 5 cm, and ideally - and ridged aerator.

As for the windows, the easiest option - vertical, installed in the gable, but full coverage is needed and special skylights mounted directly to the roof.

The number of windows is calculated based on the allowable minimum - 10 m² per area of ​​1 m² windows.

If you plan to roof windows, it is still in the assembly truss system should be calculated step rafters at their size given the seam.

In most cases, build on frame and lumber attic, as they are easier and cheaper, and the construction process faster. Given that the house, the faster it will be again under the roof after the dismantling of the old one, the better. If choosing a major, tile option, prefer lightweight materials (gazoblok, foambloc, expanded clay).

The experience of the participants of the portal

Capital reconstruction of the home of one of our craftsmen with the nickname Soboleffsubjected twice - first from the summer garden was turned into a permanent residence, and after, and have built an attic.

Soboleff (User FORUMHOUSE):

It's a welcome warmth, and with it - and the launch of a long-standing dream - the replacement of the old roof to the attic. Throughout the winter doing calculations designed to "ketchup", saved money. I think this report will interest those who are not very large in quadrature, quite old and was built from what was a house. In my case it is the former summer kitchen, remodeled 30 years ago in the house about 60 m².

Arrangement of facilities and active redevelopment to improve the comfort level of doing for the last few years.

The walls are made of silicate bricks stacked somehow, the foundation technology is also touched sideways, so the craftsman decided not to risk it and do a carcass superstructure. Wall height - 1200 mm, from the ridge to the finished floor - 3500 mm, a gable roof with an appropriate pie as roofing - metal. Planners - a pair of children's 16 squares, a common hallway and a bathroom on the already existing ground floor and cellar.

Dismantling showed caved rotten beams and the deplorable state of the masonry in the upper ranks, replaced not only the series, but the wooden beams over window openings to the area.

On the perimeter of a brick lined stuffed lath laid reinforcement rods inserted for fixing mauerlat and filled Laying nets.

Further brought to the level of internal partitions outside walls laid overlapping beams, hem subfloor and began to assemble the carcass. All wooden materials pretreated ognebiozaschitoy.

Role of stays for stiffening the hull of plate reserved - OSB 3, all joints of the frame plates and propenivali. The thickness of the insulation in the ceiling kamennovatnogo - 200 mm, the walls - 150 mm, plus a further 50 mm further along the perimeter of the entire facade.

For ventilation at the top left "cold triangle". For the flat area of ​​the ceiling insulation craftsman let in four layers with overlap. Roof "pie" by all the rules - with waterproofing, windscreen and kontrobreshetkoy.

On the outside wall also stuffed kontrobreshetku bar of 50 mm in increments of a sheet heater, the plate was laid, closed loop windscreen. The house plate fixed on hangers and plastic dowels Belleville. On top of the windshield - galvanized profile 60 × 27 mm, and the subsystem is turned ventzazor under siding.

External works, including not only the dismantling of the roof and superstructure of the attic under the roof, but also the entire perimeter insulation of ventilated facade system missed the construction season. And in internal insulation and finishing work can be carried out slowly, in a comfortable environment, downstream of using the advice forumchan in a particular area.

Sometimes, as a basis for the superstructure is not even a house, a garage, like PavelCh.

PavelCh (User FORUMHOUSE):

We rebuilt the old garage of silicate bricks. To it an extension made of lightweight aggregate concrete blocks and semischelevyh have built carcass attic. The height of the dwelling made of 2.5 meters, but can be and higher.

There is an opinion that it is easier to demolish everything and build anew than to reconstruct, but not everyone can afford such a method. The superstructure of the attic, of course, will require financial investments, but not comparable with the construction from scratch, especially if it is on frame technology. But what to choose, as in any case, everyone decides, on the basis of their capabilities and in relation to their own desires.

Details of the superstructure frame of the attic above the house of sand-lime brick - in Related Soboleff, plenty of useful topics about the construction and reconstruction - in under warm roofs. One of the most popular materials, which trim front to the foundation and superstructure of steel in one piece - vinyl siding. In the video - the reconstruction of a country house with an attic floor.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

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