Repair ceiling

In the homes must provide adequate care for the attic. The temperature of the attic in the winter should be higher than the outside air temperature at 5-6 ° C. Indicator of high humidity in the attic is a frost or dew sheathing or rafters of the roof from the attic. In case you frequently aired, or in addition to warm it. In order to wooden structures did not appear wood-beetles, moths and brownies mushrooms, do not barely keep blowing in the attic any property, or wooden structures are beginning to rot. In the joists rotting most exposed beams and panels - rolled forward. The booms most of the rot ends incorporated into the wall. State beams is determined visually and by sound - by prostukivaniya ax ax. If at prostukivanii obtained thud state beams is not satisfactory. At this point, drilled a hole and the chip determine the degree of rotting wood. Before starting work to strengthen the beams, it is necessary to temporarily strengthened. The easiest way to temporarily strengthen the beam - the staging racks. When rotted ends of the beams, the possibility of staging two or more racks. Under the rack to put a deck chair from the well antiseptirovannoy wood. Complete replacement beams - the operation is very time consuming because you want to remove the coating, insulation, shields, roll forward and only then change the beam. Decayed ends sanded and reinforce wooden plates made of planks or logs on both sides of the beam, attaching them with screws. Linings shall be of the same cross section as the beam, but about 2 times longer than the decayed end. Prior to installation of seat pads, antiseptic. Strengthened beam can be and with the help bolster. Bolster put above or below the main beam. Podbalok cross section should not be less than the main cross beams, the diameter of the mounting bolts - not less than 16 mm distance between the bolts and screws on to the end and to bolster border decay - not less than seven bolt diameters. When replacing the rotten end of the beam should pay special attention to proper sealing of repaired beams in the nest. Deaf sealing the ends of wooden beams in the nests of the outer stone walls of the following methods: the end of the beam on 0,5-0,6 m cover antiseptic paste, then tar or asphalt and wrap him or roofing material and placed in a nest lined with two layers of roofing or antiseptirovannuyu wooden lining. Rotted floor boards replace boards of the same size, but be sure antiseptirovannymi. In the place where panels had deteriorated, remove cover, insulation, and then replace the damaged panel. Work should be carried out carefully so as not to disturb the close lying shields. In reinforced concrete hollow-core slabs in contact with water in the voids and thawing can be destroyed with the formation of cracks along the emptiness vykoly plate down or pull-up shelf plate. Before repair is necessary to ensure drainage of water from the voids plate through drilled holes. To strengthen the boards are cut on the shelves every 3-4 cavities are placed in their reinforcement cages and filled with concrete grade not lower than M300 (Class B25 - a new designation of concrete on the compressive strength).