Roofing/Roof Calculation

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Question
Roof
Roof  
Hello
With reference to the following details for my proposed roof plan  attached, can assist me with sketching and computing the following below for my roof.

Details:
Drawn to a scale 1/8"=1' and with an overhang of 3'can you assist me with sketching a hip roof for a 4/12 slope or a 1/6 pitch and computing the following:
1. common rafter length
2. hip rafter length
3. jack rafter length
4. number of galvanize sheets
5. also how much labor and how much/type materials would be required
Any additional info required please let me know

Answer
Sam,

I am afraid the extent of your questions are not so easily answered. Much of what you seek would need to be designed by a Structural Engineer. As for the roof, the overall size may vary depending on the final framing design. Based upon the dimensions provided, the roof area would be approximately 1700 square feet or 17 roofing squares.

The actual framing members (size and length), the manner of designed slope and roofing materials have much to do with the building location, any applicable Building Codes and what occupancy is planned for the building. My best recommendation is to engage a Structural Engineer or Architect to accomplish the basic building's structural elements.

I hope this information is of some help to you.

Steven C. Wadding RRC,RRO,CDT

Roofing

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Steven C. Wadding RRC,RRO,CDT

Expertise

General questions in regards to most roof types and situations. As the Technical Services Manager for Polyglass USA, Inc. this would not be a forum to address any issues directly related to a product my employer manufacturers.

Experience

I have been active in the roofing and waterproofing industries for more than 30 years with extensive experience from product installation, product development and consulting. I have been active in the Construction Specifications Institute and Roof Consultants Institute for approximately 20 years. I am a member of ASTM and am a voting member of various subcommittees. I have many years of consulting experience in the fields of Roofing, Waterproofing and Exterior Building Envelope disciplines.

Organizations
Roof Consultants Institute Construction Specifications Institute ASTM

Publications
Division 7 Technical Binders for Malarkey Roofing Products and Polyglass USA, Inc. CSI Phoenix Chapter Cactus Comments

Education/Credentials
Registered Roof Consultant - Roof Consultants Institute Registered Roof Observer - Roof Consultants Institute Certifified Document Technologist - Construction Specifications Institute Spray Fireproofing Special Inspector - International Code Council

Awards and Honors
Registered Roof Consultant - Roof Consultants Institute Registered Roof Observer - Roof Consultants Institute Certifified Document Technologist - Construction Specifications Institute Spray Fireproofing Special Inspector - International Code Council

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