**Internet Resources:**

- [www.alside.com](http://www.alside.com): Alside, Inc., a manufacturer of low-maintenance siding.
- [www.atas.com](http://www.atas.com): ATAS International, Inc., a manufacturer of metal roofing.
- [www.bcewp.com](http://www.bcewp.com): Boise Cascade Engineered Wood Products.
- [www.calredwood.org](http://www.calredwood.org): California Redwood Association.
- [www.certainteed.com](http://www.certainteed.com): CertainTeed Corporation.
- [www.cor-a-vent.com](http://www.cor-a-vent.com): Cor-A-Vent, Inc., a manufacturer of roof vents.
- [www.elkcorp.com](http://www.elkcorp.com): Elk Corporation of America, a manufacturer of premium roofing materials.
- [www.gaf.com](http://www.gaf.com): GAF Materials Corporation, manufacturer of roofing materials.
- [www.met-tile.com](http://www.met-tile.com): Met-Tile, a manufacturer of metal roofing.
- [www.stone-slate.com](http://www.stone-slate.com): Slate/Select, Inc., a supplier of simulated slate roofing.

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**Review Questions - Chapter 19:**

1. Give the names of ten distinct roof types.
2. The purpose of roof framing is _____.
3. The roof framing member that extends from the ridge to the top plate or beyond is called a(n) _____.
4. If a roof has a pitch of 3:12 and the rise is 6', the span is _____.
5. The roof span is measured from _____ to _____.
6. The _____ of a roof is one-half the span.
7. The formula for calculating the fractional pitch of a roof is _____.
8. The pitch of a roof that has a slope of 45° is _____.
9. List three things that determine rafter size.
10. A lightweight roofing material is one that weighs less than _____ pounds per square foot.
11. The _____ is the overhang of the roof at the eaves line that forms a connection between the roof and sidewalls.
12. List the three types of cornices that are frequently constructed on homes.
13. List two purposes of attic ventilation.
14. The total area of ventilator openings should be a minimum of _____ of the ceiling area.
15. Name two materials commonly used for roof flashing.
16. Roof sheathing on most homes is _____ thick plywood.
17. Identify five roofing materials that are used on residential structures.
18. The recommended minimum weight of asphalt shingles is _____ pounds per square.
19. List two advantages of the roof truss over conventional framing techniques.
20. Identify three types of trusses that are commonly used in residential construction.
21. List information required to purchase roof trusses for a home.
22. What is a gusset?
23. Name two newer roofing materials that have greater wind resistance than traditional asphalt shingles.

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**Suggested Activities:**

1. Look through magazines and cut out or copy pictures of houses that represent various roof styles. Mount the pictures on illustration board for display.
2. Write to several manufacturers of roof covering materials and ask for specifications and descriptive literature about their products. Display the literature and then add it to the classroom collection.
3. Build a scale model of an open cornice, a box cornice, or close cornice. Use a scale of 1" = 1'-0" and label the various parts. Using CADD, make a section drawing of the model. Display your model and the section drawing.