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09.08.2019 05:50
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The upper sealing of the terrace is ensured by several crossed layers of felt impregnated with bitumen Cheap Bears Jerseys , sandwiched between two layers of hot cast tar. Along the acroteres and all reliefs emerging from the slab, the protection is provided by a bituminous support covered with an embossed aluminum sheet. All these materials age and undergo sudden changes in temperature that cause movements, so cracks. It is then the door open to the infiltrations of water which walk through the slab and stand out by the ceilings. But before repairing, it is necessary to locate the entrance of the leak. Locate the leak In our case, the traces on the ceiling were at a corner of the room, under the rainwater outlet of the terrace. The juncture of the protective layers with the discharge holes is often weak. The slightest microcrack causes leakage. The portion of PVC pipe embedded in the slab and serving as a flow may also crack due to thermal stresses Riley Ridley Womens Jersey , settlement or expansion of the building. On the other hand, it is much more difficult to determine the cause of sagging rafters in the center of a ceiling. The leak can be located further, the water running in the structure of the slab. To establish the diagnosis, blow up a piece of dead plaster from the ceiling, so as to reveal the slab of the concrete floor, then dry the area with a heat gun. Run water directly into the exhaust outlet of the terrace with a garden hose with a tap at the end. In case of infiltration David Montgomery Womens Jersey , the part of the slab visible in the room will get wet, otherwise you have to look for the leak around the evacuation. Some aspects of the protective layer are also revealing. The crazing, or “mud-curling“, appears in the form of cracks, comparable to mud dried in the sun. A phenomenon rather limited to superior protection, but can extend in depth. On the other hand Akiem Hicks Womens Jersey , longitudinal cracks, up to 5 mm wide, often occur at the junction of two protective strips. The formation of blisters, finally, results from the imprisonment of water which vaporizes during the important elevations of temperature. The repair The environment of the water outlet, protected by a zinc crapaudine Tarik Cohen Womens Jersey , had a cracked appearance without major crack. After partial removal of the grit, which absorbs the temperature variations, brushing and washing the surface, it has been planned to carry out two sealing protections. One hot with bituminous membrane covered with embossed aluminum that will border two sides of the crapaudine. The other cold using a bituminous mastic loaded with plastic fibers and elastomers, intended to seal the crevices and to join the previous protection. Implementation The pieces of aluminized membrane, cut with a cutter Mitchell Trubisky Womens Jersey , are arranged all around the crapaudine. Using a butane torch equipped with a special nozzle with a large nozzle, the aluminum face is heated uniformly, taking care not to burn it. The bitumen partially melts and bonds to the deck covering. For the connection to be perfect, it is essential to rub with a spatula, especially around the edge of the room. The finishing of the edges, for a small repair Anthony Miller Womens Jersey , is more easily done with the soldering lamp, more manageable than the lance. Connections with acrotere fallout must be cured. The cold clogging is intended to fill the crevices about 1m2 around the pieces that have just been put in place. The application of the repair putty (Asphaltco Mulex plastic) is done with a 12 cm spatula, pressing strongly to ensure good adhesion of the product. Immediately, a special polyester reinforcement strip is deposited on the fresh putty while pressing with an old brush or spatula to impregnate the fabric. Another band, perpendicular to the first is treated in the same way, crossing the joints. The whole is covered with a new layer of mastic to drown the frame between two layers. For a large crack Roquan Smith Womens Jersey , and after clogging of it, the reinforcing band ensures optimal bridging. The product is applied on slightly damp substrate. It is dry to the touch in 6 hours. |
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