SEARCH RESULTS
| Term | Description |
|---|---|
| Base ply | The bottom or first ply in a built-up or polymer- modified bitumen roof or waterproofing system when additional plies are to be subsequently installed. |
| Term | Description |
|---|---|
| Base ply | The bottom or first ply in a built-up or polymer- modified bitumen roof or waterproofing system when additional plies are to be subsequently installed. |