An example of adding a terrace to a house

Attaching a terrace to the house: step-by-step instructions and construction nuances

Often, the owners of a country house think about the need to have a terrace or veranda in the house after the completion of construction. In this case, the terrace is most often planned as a place for rest and gathering of friends, rather than a living room. It is not difficult to carry out such an extension to the house, but it is necessary to observe the nuances of building a terrace, remember about the peculiarities of erecting a structure near an already finished structure. We will analyze more detailed step-by-step instructions for building an extension to a house in today's article.

Design features

The design of each structure has mandatory and optional elements. The minimum set of terraces attached to the house consists of a foundation and a flooring. The third prerequisite is one wall common with the house, which has a separate entrance door connecting it with a room (most often a living room).

Another element depends on the height of the basement of the house. Terrace decking is usually flush with the ground floor. If the basement is high, then in order to go down into the courtyard, they make either a step or a small staircase with a railing.

To increase comfort, in most cases, the terraces have a roof to protect from precipitation. A fence is also usually made to protect family members and guests from accidentally falling from the deck to the ground.

And prudent owners equip open annexes (without a canopy) with special awnings, which can be opened if necessary.

These features, as well as the type of foundation, affect the extension design.

Terraces and verandas to the house, photo projects

Summer playgrounds can be built-in and attached. Built-in premises are provided even at the design stage of the cottage, as closely as possible to the design of the building and are on the same foundation with it. Attached structures are tied to an existing house and placed on a separate foundation.

Attached veranda, which is located on a separate foundation

Foundation for an extension

Even a light extension needs a foundation. It will certainly be correct to make the new base identical to the old one. Although, if a cellar or basement is not equipped under the extension, then the strip foundation of the full profile is clearly redundant.

There may be other exceptions - for example, for a frame extension next to a brick house, you can lay a pile foundation instead of a strip or slab foundation.

In total, there are three types of foundation for an extension:

  • tape shallow
  • pile
  • shallow slab.

Note. A columnar foundation for an extension is appropriate only when it comes to the construction of a very light structure: a porch or a terrace.

Any other extension to an already standing house can behave unpredictably, and in this case it is incorrect to talk about a reliable connection between the two structures.

How to connect two foundations

The foundations of the extension and the house are connected in two ways: rigidly or through an expansion joint.

A rigid connection is allowed if the house is on rocky or non-powdery ground, when the settlement of the new structure is negligible. And this type of connection is done only for a monolithic tape.

The grillages of pile and screw foundations are more difficult, although possible, to be rigidly connected. But most often they do not do this, since all the same, the walls of light buildings (wooden, frame or from a gas block) are connected using the technology of the expansion joint.

Prefabricated strip foundations should not be rigidly connected at all, each base does not have structural rigidity, and rigidly interconnected blocks can become a hotbed of tension, working to deteriorate the bearing properties.

Slab foundations, which, although they are monolithic, cannot be rigidly connected.

"Floating" base, weak soils, prefabricated loads of different sizes at home and outbuildings - these are the main factors that lead to stress and deformation of the junction, and this contributes to the appearance of cracks on the facades of buildings. In these cases, the slab foundation of the extension is made independent, with an expansion joint.

On soft soils and subsidence soils, the foundations are tied only through the expansion joint. The settlement of an already standing house is usually already minimal (one might say, it is almost over), and the new extension begins to settle, and any rigid connection will not withstand - cracks will appear in the junction nodes. To avoid this, they equip a deformation sedimentary seam, which runs along all adjacent surfaces - from foundations to the roofs of two buildings.

Connection options for two strip foundations

The geometry of the strip foundation of the extension in relation to the house is of two types: with an open or closed circuit. And you can link two ribbons in four ways:

  • Open loop and rigid link. Along the abutment line in the old foundation, holes are drilled in two rows in a checkerboard pattern for driving ties (reinforcement bars). The hole depth should be 35 times the bar diameter. The armature is cut into pieces equal to two values ​​of the drilling depth, hammered and jammed in the holes, an armored belt is tied to them for the foundation of the extension.
  • With closed loop and rigid link. Everything is the same as in the previous method, but the foundation of the extension has a completely independent closed contour, and holes for connections are drilled along the entire length of the old foundation in the abutment spot.
  • With open loop and movement seam. The foundation for the extension is closed with ends to the foundation of the house. In the nodes of the abutment of the new tape to the wall of the old foundation, sheets of penoplex or roofing material (rubemast) are laid, folded several times. After stripping, the gap is sealed with a sealant, and roll waterproofing is melted on top.
  • With a closed loop and movement seam. Everything is the same as in the previous method, but the extruded polystyrene foam is laid along the entire junction spot, and it serves as a formwork for the foundation of the extension.

Simple solution from our subscriber:

Connection of an extension on stilts to the house

There are different options for connecting an extension on piles and a house, regardless of the foundation on which it stands:

  • Piles - tape. The hanging grillage and the monolithic foundation are not rigidly connected (it is technically difficult and unnecessary), and the wall of the extension and the facade of the house are connected using a “warm” expansion joint.
  • Piles are a slab. The connection technology is similar to the previous one.
  • Piles - piles. It is possible to rigidly tie the grillages under the facades of the buildings. Wooden and metal grillages are tied with steel bands, staples, rebar trimmings. Reinforced concrete grillages can be tied only if the width of the beam allows drilling holes for reinforcement to a depth equal to 35 bar diameters.

Roof terrace

A limited area and a small personal plot can force you to use any available place. This extra space is a wonderful place to relax.

When creating such a terrace, many problems need to be solved:

  • Roof strength assessment
  • Suitable floor covering
  • Creating a convenient roof exit
  • Building a reliable fence
  • Create an attractive design

First of all, you need to evaluate the available place where you can make a terrace. For this, they are used - the roof of a residential building, sometimes the roof of a veranda or a nearby garage. Of course, it is advisable to calculate the possibility of building this building, preferably during the design of the house.

You can determine what materials will be required if you assess the strength of the building where you want to build the terrace. If a residential building has a strong foundation, then it is able to withstand an increased load, and a light extension is not capable of this. In this case, you will have to reinforce the residential building with additional support posts.

After calculating the maximum possible load, you can start planning the building. The roof over the roof terrace is made of lightweight materials in order to minimize the load on the building.

Be sure to make a parapet, it is necessary for the safety of people vacationing here. There are many options here - it can be made from forged structures, a brick, wooden fence or as a glass fence. On a brick parapet, you can plant bright flowers, which, during flowering, will make the interior space very beautiful.

Since the terrace is intended for relaxation, it should be made as close to nature as possible. Walls covered with maiden grapes, boxes with flowers and flowerpots with trees, a small bubbling fountain will allow you to relax, unite with nature. It is important to find furniture suitable for the place. We only need products that are resistant to moisture. There will be light portable furniture in place - light metal and plastic objects, wicker sun loungers and armchairs.

VIDEO INSTRUCTION: How to build a terrace

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