本PDF包括GI#2.1。范围1。1本标准描述了坡度为1:3及更陡屋顶上沥青条瓦的最低应用要求。注:屋顶基底和基底下方的通风。附录A提供了可接受的木瓦基材的建议；附录B，瓦底下方可接受通风的建议；附录C，关于在隔热层上使用沥青瓦的建议。

This PDF includes GI #2.1. Scope1.1This Standard describes the minimum application requirements for asphalt strip shingles on roofs with slopes 1:3 and steeper. Note:Roof Substrate and Ventilation Below Substrate.Appendix A is included to provide recommendations for acceptable substrate for shingles; Appendix B, recommendations for a cceptable ventilation below the shingle substrate; and Appendix C, recommendations on the application of asphalt shingles over insulation.