After laying out, set aside the location of the lighting board, construction from the cornice to the direction of the ridge towards the ridge. The lighting plate is directly attached to the side crest of the steel plate.　

The pavement must be larger than the diameter of the fixing screw 6-9mm before fixing the hole, as the thermal expansion and contraction.　　

When the lighting plate and the steel plate in the longitudinal lap, the minimum must have 200mm overlap, and placed two waterstops.　

When the lighting plate is fixed, it must use a good water washer, so that between the screw and the lighting board, in order to waterproof and dustproof.　

After the water washer was inserted into the screw, the drill was locked into the purlin.

Lighting board construction, is strictly prohibited feet directly on the peak, so as not to light board cracking. Must be in the horizontal position of the lighting board, placed a 1200mmx300mm {length x wide) non-slip thick wood, foot on the light board of the guide hole and fixed screw work.