CARPENTRY HOUSING BASIC ROOF and （木工住房基本屋顶和）.pdfVIP

CARPENTRY - HOUSING BASIC ROOF and CEILING FRAMING This text introduces subject matter related to ceiling framing and basic roofing. Reference may be made to “Basic Building and Construction Skills”, produced by TAFE and Addison, Wesley, Longman Australia Pty Limited, to re-examine and reinforce these basic skills. There are two parts to the text, PART 1 – Ceiling Framing and PART 2 – Gable Roofing, which address the following: Ceiling frames, roof types and terminology are explained, with special reference to gable roofs. Structural members are detailed and their purpose defined. Methods for determining lengths of members, setting out, cutting and erection processes are covered, including eaves construction for various situations and the various materials used. The text also covers calculation of members, their lengths, quantities and costs. Note: Only conventionally pitched roofs are dealt with in this text, as Trussed roofing will be dealt with in a separate text. A comprehensive ‘Glossary of Terms’ is included at the end of the text, which provides a detailed description of trade terms, technical content and some trade jargon. ©TAFE NSW Construction and Transport Division 1 BASIC ROOF and CEILING FRAMING INTRODUCTION TO PITCHED ROOF FRAMING Definitions: Roof: “A roof is the weatherproofed upper covering of a building or structure, which is designed to protect the interior from atmospheric elements such as sun, rain, hail, snow, frost and wind.” Flat roof: Is a roof with a minimum of slope to allow water run-off, usually with a fall of 1 in 40 but a minimum of 1 in 60. These are usually confined to sheet roofs with the sheets being full length, no joins, for a slope less than 1 in 40. Pitched roof: This is a roof with a slope, or pitch,