Most roofing synthetic underlayment materials are woven or spun from either polyethylene or polypropylene. While the ingredients are similar, the manufacturing process and thickness of each type of underlayment can be fine-tuned to produce different properties, such as exposure time and walkability. One way of comparing synthetic underlayment is by weight, similar to how felt is compared. Instead of pounds-per-100-sq.-ft., synthetics are rated by grams-per-sq.-meter (GSM).
News
Latest News
- What is a self-adhesive vinyl?
- DERFLEX 20oz truck cover Tarpaulin advantages
- Super Clear PVC Sheet
- What is PVC sheet?
- How to choose the best pvc tarpaulin for swimming pool
- Characteristics and performance of PVC inflatable tarpaulin material
- Applications and advantages of PVC membrane structure
- What is the difference between TPU Membrane and PVC Membrane ?
Company News