Laying the floor is the most important work to do moisture, new residential, especially the lower floor humidity is high, so before the laying of the floor to take moisture, moisture absorption measures, in the back of the floor coated with a layer of moisture protection paint.
Joist installation: joists should be used to grip the strong force of wood, to prevent the nail after a long time loose, walking creak. The grille should be shaved and dried. The proximity of the joists will make the floor inelastic, and vice versa, if it is too wide, the floor will produce a large bend, affecting the strength, generally between 30-40 cm. The retaining grid can be fixed to the concrete floor with expansion bolts, with a pitch of about 30-50 cm. The bars are to be adjusted in the same horizontal plane to ensure that the floor is flat and firm. If it is not a special load-bearing floor, it is best not to put the cement on both sides of the joist reinforcement, such as cement, you must wait for the cement dry (about twenty days or more) to lay the floor, otherwise the floor absorbs the moisture in the cement , Will be deformed, moldy.
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