Melting snow, constant rains, stagnant moisture — lead to the appearance of mold, and can adversely affect even the most durable roof and ultimately lead to its collapse.
Roof defects can be due to several reasons. The main ones are poor-quality building material, errors during installation work, mechanical damage, natural destruction of the roof due to precipitation.
Repair of any roofing begins with a thorough inspection, both outside and inside. As soon as the damaged place is found, it is urgent to start roofing work to eliminate them..
The easiest way to repair is a slate roof — you just need to patch up the resulting cracks and chips with a solution of cement and sand (in the ratio Ѕ). In addition, you can purchase special repair tapes that are easily glued to the damaged surface..
Defects of a metal roof are somewhat more difficult to eliminate. To do this, first, the «sore» area is cleaned with a metal brush, then a piece of material for the roof is cut out so that it is slightly larger than the damaged surface. The edges of the patch and the surface itself are treated with an alloy of lead and zinc, and then they are soldered with a special soldering iron. After the area has cooled down, all unnecessary is removed and the roofs can be painted..
If large areas are damaged in the metal roof, then the defective sheet is replaced completely. To put in order a metal roofing, you will first need to cover all scratches with a special paint that will help to avoid corrosion. Any cracks can be sealed with duct tape or silicone designed specifically for the roof. If the volume of the damaged area is too large, then the entire roofing sheet is replaced..
To protect the roof from metal tiles from leaks, snow holders are increasingly used today, which hold back snow and ice and prevent melt water from penetrating into the roofing. Small difficulties can arise when repairing cement-sand or ceramic tiles. First, the trowel removes damaged tiles, as well as nails securing the slats..
Next, you need to insert hard cardboard under the slats and cut out their parts with a hacksaw over the defective area. The place of the damaged waterproofing is removed with a knife and a patch is made on this place. The missing areas of the slats are cut out and nailed to the rafters together with the old bases. Then the sheets of tiles are laid, while replacing the old ones with new ones. After repair, the metal tile is treated with a colorless synthetic liquid that will help protect the roof from moisture.
It should be borne in mind that the best time for any roofing work is early spring or autumn, preferably warm, but not hot weather.
