| 摘要 |
<p>The present invention relates to surface covering building materials for roofs, sidewalls and other exterior surfaces exposed to the weather such as, but not limited to, asphaltic and non-asphaltic roofing materials, wherein said surface covering building materials exhibit long-term resistance to microbial growth-induced staining. The surface covering building materials include a component having antimicrobial potential which consists essentially of (a) a copper component or a tin component and (b) a barium metaborate monohydrate component.</p> |
