This performance record has made Firestone Building Products the leading supplier of Single-Ply Roofing Systems.
其出色的性能使得凡士通建筑产品公司成为单层屋顶系统生产的龙头。
2
Install, repair or replace single-ply roofing system using waterproof sheet materials such as modified plastics, elastomeric or other asphaltic compositions.
使用防水片材，如改性塑料，橡胶或其他沥青成分安装，维修或更换单层屋面系统。
3
Two-ply refers to materials that twist two threads together into a single thread, thus increasing the fabric's thread count and creating a stronger thread.