The installation quality of flat clay roof tiles is crucial to the waterproof performance of the roof. If the overlap between clay tiles is not tight during installation, the clay tiles are not completely fixed, or there are cracks in the clay tiles themselves, it may cause roof leaks.

The quality of clay roof tiles directly affects their durability. If inferior clay raw materials are used in the manufacturing process or the production process is improper, the density and strength of the tiles will be insufficient, and they will easily crack during use.

According to industry standards and building specifications, the minimum slope for laying clay roof shingles is usually 30% (i.e. 7 degrees). This slope ensures that water can be discharged smoothly and prevents the joints between tiles from being eroded by water.

Despite their natural color and texture, clay tiles can be painted. However, painting clay tiles is not a must for every homeowner, as high-quality clay tiles generally have a long natural lifespan, and some homeowners like the natural weathering effect that tiles show over time.

Compared with nails, screws are slower to install and require power tools for fixing, which increases the complexity and time cost of construction. In large-scale roof installation projects, using screws to fix tiles may significantly extend the construction period.