External wall of calcium silicate board seams posted why the grid is also cracked
Ordinary caulking agent is not enough, with the toughness of the sealing agent is more appropriate, with toughness anti-cracking, it is recommended to use the home of the heart of the card to worry about toughness sealant (TB).
First, whether the gap between the calcium silicate board (plate) is caulked with the caulking agent, because the outdoor long-term sun and rain, the reasons for thermal expansion and contraction
