Module #14 - Roof & Eave Construction

Learning Outcomes:

By the end of the module learners will have reviewed roof construction systems as taught in Building Materials 1 and be able to demonstrate their knowledge by freehand drafting several roof and eave details. 

Topics:
 
 - Roof Construction Review

 - What's Wrong with this Roof Detail?

 - Roof Details for Final Project

Text References:

Eaves: Pg. 183-7 and 205.

Rakes: Pg. 188-190 and 207.

Ridges: Pg. 190 and 206.

Rafter ties: Pg. 201-3 and 211.

Supplemental Readings:

 - OBC Housing Guide, Chapter 9, "Roofing", "Roof Surfaces" 
 - Architectural Graphic Standards, 9th Ed., "Roofing and Shingles", pp.216-226
 - Architectural Graphic Standards, 9th Ed., "Framing Details for Roofs", pp.183-184, 187-188

  Review roof framing and roof surfacing guidelines for light wood frame construction as discussed in TECH 16214 "Building Materials 1".

 You are required to submit a roof eave detail section in your final project submission.  This detail must coordinate with your design for the residence in Architectural Studio 2.  Use the generic detail shown below to begin researching eave detail.  Determine the roof framing system.

Detail shown above is an eave with a soffit. There are other choices for instance: Exposed Eave, Boxed-in Eave, Abbreviated Eave,.  Review your selections with your Architectural Studio 2 instructor.  Once you have determined which type of construction technique and eave you are going to use, start your final freehand detail drawing. 

Other factors to consider are:

• materials and look desired

• maintenance requirements

• roofing material (metal, shakes, tiles, other)

• eave protection to prevent damage due to ice dams.