What is wood ceiling?

Wooden ceiling practices

A, construction practices and materials 1, construction practices

(1) wood frame (or steel and wood frame) roof is mainly suspended bars, keel, secondary keel (the main grill, the secondary grill), cover panels.

(2) reinforced concrete slotted plate, hollow plate under the roof mainly by the main keel, secondary keel, hanging bar (diameter 8 rebar), cover panel.

(3) Ceiling surface joints. Ceiling with plywood, fiberboard joints

(4) wood keel arc-shaped ceiling or crown-shaped ceiling. Wooden keel arc-shaped ceiling or crown-shaped or crown-shaped ceiling is made of multi-layer wood plywood keel, first according to the design drawings of the sample, with a curved saw saw if you catch the arc-shaped wooden keel into a monolithic wooden skeleton. Wooden keel made and proofread by the sample board, can be nailed to cover the panel. Arc-shaped ceiling can be used paper gypsum board cover, the operation method with arc-shaped light steel keel paper gypsum board wall. Generally, it is made of three-layer plywood. 2, materials

(1) wood. The main keel, secondary keel should be dried, no twisted red and white pine species; yellow pine shall not be used. Wooden keel specifications according to the design requirements, design does not specify, generally processed in accordance with the following specifications. The main keel 50mm*70mm or 50mm*100mm, the second keel 50mm*50mm or 40mm*60mm, the reinforcement 50mm*50mm or 40mm*40mm

Circular curved ceiling wood keel with multi-layer board. According to the design drawings plus sample processing. (2) Covering board. See "wood partition wall" cover panel material.

(3) anti-corrosion coating. Wooden structures and wooden decorative objects commonly used anti-corrosion coatings, see Table 7-17 Table 7-17 Wooden structures and wooden decorative objects anti-corrosion coatings Item Name Model Standard No. Performance and use

1 perchloroethylene corrosion varnish G52-2 HG2-2 HG2-2 626-74 has excellent resistance to corrosion. 626-74 Excellent corrosion resistance, and can prevent mold, moisture, fire, but poor adhesion, can be used to impregnate wooden objects

2 Colored vinyl perchlorate anticorrosive varnish G52-2 (G52-31) HG2-626 G52-2(G52-31) HG2-626 -74 It has good anti-corrosion property, acid and alkali resistance, good mildew and moisture resistance. Used with perchloroethylene primer for steel, wood, cement surface

(4) Fireproof coating. Commonly used wood structure fireproof coating YZL-858 foam fireproof coating and YZ-196 foam fireproof coating and intumescent latex fireproof coating. Other features include expansion foam in case of fire, which produces honeycomb heat insulation layer with good heat insulation and fireproof effect.

Two, construction process

(1) cast-in-situ reinforced concrete or prefabricated floor slabs, pre-buried diameter 6 or diameter 8 steel reinforcing bars, spacing according to the design requirements, and when there is no design requirements, the spacing is generally 1000 mm.

(2) The main structure is completed and passed the acceptance.

(3) Roof waterproofing is completed and passed the acceptance. Doors and windows are installed, and the interior floor, ground, and wall surfaces are roughly finished.

(4) The anticorrosive wood bricks have been embedded in the surrounding walls according to the designed ceiling elevation during masonry.

(5) The hidden pipelines and ventilation ducts in the ceiling have been installed and passed the acceptance inspection.

(6) set up a good roof construction platform.