What is crazing or spider web cracks?
It is actually a hairline surface cracks on glazing.
Why did I see crazing or spider web cracks on my clay roof tiles?
Due to the difference in COE rate, it is caused by tensile stresses greater than the glaze is able to withstand.
Is this a defect of my clay roof tiles?
No, it is not a defect, our tiles has undergone several strength test to ensure its rigidity. The tile rigidity is not compromised.