Pergolas are light, closed, half-closed or open type. The closed ones look like glazed buildings, more reminiscent of a miniature house, which is firmly installed on the foundation for the gazebo. Insulated options are usually made of wood or concrete, and open are suitable for dry and hot seasons. Today, summer constructions are sold in disassembled form, which must be assembled directly at the summer cottage, but there is a fear that these light models will not withstand strong wind or rain. Therefore, it is better to give preference to a more solid, stationary semi-open building.
Soil analysis
How to make a foundation for a gazebo so that it pleases the owners longer? Wooden buildings are very lightweight, so for them there is no need for a solid foundation. They can simply be put on the ground, which can not be said about stationary, more durable and heavy models. To choose the right foundation for the gazebo, it is worth analyzing the quality of the soil and its properties. The best work is done on sand soil, which does not cause any trouble to builders. In this case, the depth of the support planted in the ground is half a meter. The most unsuccessful is clay soil, which during freezing can swell unevenly, which immediately leads to the raising and warping of the foundation itself. So, the structure will begin to gradually deform. This can best be seen on the glazed pavilions, in which the frames and the door do not open well, and even cracks appear on the windows.
Types of foundation
The foundation for the gazebo is solid, tape and columnar. The most affordable and stable on soil with a high clay content in a very humid area is considered a columnar version, which includes a gravel-sand cushion, a base plate, loose soil, precast reinforced concrete pillar, reinforcing cage, cast concrete and asbestos-cement pipe. When carrying out the work, one must not forget about the following rules: poles are placed at all corners of the building at the intersection of the inner and outer walls, as well as along the perimeter of the structure with a step of about 2 meters; still need a base between the pillars, based on their intersection.
Strengthening
To properly fill the foundation for the gazebo, you need to use asbestos-cement pipes in work , usually drilled beyond the depth of freezing of the soil. They are laid on well-compacted crushed stone, poured with cement and sprinkled with sand in a circle. Such manipulations are carried out to isolate the pipes from the ground and to prevent the effects of expanded clay on them. A plastic film wrapped around the pipe can help with this. This method of strengthening the structure has a fairly low cost, which is also undoubtedly a plus.
Tape method
The foundation for a gazebo made of brick, stone or concrete, that is, for buildings with sufficiently massive walls, as a rule, is poured with a tape method. This method involves a large amount of earthwork, and therefore, the corresponding consumption of material for construction. Also, for heavier buildings, you can use a prefabricated block foundation, which is a connected reinforced concrete block, fortified with mortar and thick steel wire. Such a support is very reliable, quickly erected, but requires a large investment.