The rooftop of the home has twice been laid in the south of the pine antiseptic wood, the first batch of shop more uniform color, cracking the situation is also less, but the second batch of paved wood, after a few months, the color began to black, cracking Also more. Which expert knows the reason? Is the second contractor to give me the material is not loose in the south?
At that time has been brush twice the KGI paint ah
that is, you said Black) there is no drying of the wood with the principle of heat up the cold will naturally crack, and foreign imports have done so it will not appear that kind of situation. The above facts show that your second batch of materials is made of domestic processing.
South pine antiseptic wood is also a graded level is estimated that the problem is there is the South is now the domestic processing and foreign direct import of domestic processing is basically not done drying so there will be a blue change (
Outdoor wood, cracking is normal, the wood after the rain will absorb water, after the sun exposure will be drained in the drainage process of wood cells drainage too late, it will crack to speed up the drainage process,
As for the black, probably because the material is not in place of corrosion, (materials need to add anti-mildew) material corrosion, not caused by kiln dry, the other in the production of preservative wood, the need to brush varnish, the front and back sides of the floor must brush , So as to play the role of protection of wood.
