4 keel and walls or other materials are set aside 5-10mm.5 if there are water pipes or heating facilities on the ground, when the keel is laid, the keel should be replaced with plastic steel, aluminum alloy and other new type of keel or adhesive bonded with short wood keel.6 after the laying of the keel should be smooth and strong inspection, if not smooth or not solid, can not lay the floor.
2 the use of keel shop to try, keel and accessories must be dry, can not be inferior, pollution, moisture, perishable, easy to moth eaten materials for keel and accessories, otherwise not construction.3 of the first floor (ground leveling height difference is too large, should be based on the skids, leveling) between the keel and keel wood keel fixed on the ground by drilling or hammer nails.
The construction shall be dampproof and insect pest control treatment, first sprinkle powder, with moisture-proof paper (film). Waterproof paper (film) to be stacked above 20cm, and shall be laid above foundation 10cm.
