Asphalt roofing

30-ShinglesOverview

  For the past six months we have worked on building the solar house. We leveled the ground, tampered the surface, and placed stone. Next we installed the 6″X6″ sleepers and began framing the E-house; Floor joist, walls, and rafters. The next step is to install the asphalt shingles on the roof. The two most populare asphalt shingles are three tab and architectural shingles. In this lesson we will learn important terms, estimating, and application of asphalt shingles.

Objectives:

 Students will learn:

  • Material needed for asphalt roofing
  • Shingle application
  • Estimating material for asphalt roofing
  • Two most common types of asphalt roofing

Activities:

  • Review information on architectural shingles.
  • Review information on three tab shingles.
  • Review information on three tab versus architectural shingles.
  • Read article on asphalt roofing installation.
  • Identify and record material pertaining to roofing.
  • Practice material estimating using cut list.
  • Observe YouTube video on roof shingle installation. 

Architectural Roofing Shingles

 

Three tab shingles

 

 

         Architectural shingles are also known as laminated or dimensional shingles. They are among the highest quality roofing products because they are heavier, without requiring additional support under the roof. They are used by homeowners, usually of large houses, who like a distinctive look to their roofs. Their weight and design give a three-dimensional appearance. Some are nailed on in the usual way, while others in addition to nails, have interlocking tabs. They are also attractive to builders because of ease of installation.

How are Architectural Shingles made?

 

They are made using a heavier mat base than a standard asphalt shingle. The mat base is made from fiberglass or organic materials, with some asphalt added. The back of the shingles are coated with a special material and granules are added to the top layer.

How long do Architectural shingles last?

In most cases they’re designed to last for 30-50 years. They contain asphalt and minerals, are strong and flexible. They withstand extreme temperatures and other weather events. They are often available with a lifetime warranty.

Algae Resistant Architectural Shingles 

When looking for architectural shingles make sure you select ones that are algae resistant. This is particularly important for north facing roofs with light color shingles and in high humidity areas. Early on architectural shingles had a susceptibility to algae and you typically would see black algae streaks running down the roof lines. Fortunately most types today are algae resistant. Most architectural shingles that are manufactured today are coated with zinc or copper granules which help to prevent algae growth.

Architectural Shingle Warranties 

Due to their rugged construction, architectural shingles usually have longer life warranties than 3-tab shingles. Architectural shingles typically have warranties of 30 to 40 years where as 3-tab shingles have warranties of 15 to 20 years.

Architectural Shingle Pricing

 Because of their higher quality construction and longer warranties, architectural shingles are priced higher than 3-tab shingles. Typically architectural shingles can cost 20-40% more than 3-tab shingles. In addition, though less complicated then 3-tab shingle installation, they are more labor intensive due to the fact that more architectural shingle bundles are required then 3-tab shingles to cover the same square area. As a result, the overall roofing costs are considerably higher using architectural shingles. This said, the benefits associated architectural shingles far outweigh the added installation cost in most circumstances.

Link below is by hammer zone, in this link the reader will see the installation process of asphalt roofing including cap and exhaust.

http://www.hammerzone.com/archives/roof/maintenance/reshingle/install_1/asphalt_1.htm

Roofing material calculations:

Ice and water — lineal ft.

Felt paper –lineal ft.

Drip edge — lineal ft.

Rake edge — lineal ft.

ridge vent — lineal ft.

shingles — square 10′ X 10′

cap — lineal ft.

Nails– pound

Individual peices: roof vents, flashing, valley flashing, roof tar, staples

Equipment check:

Ladders, roof bracket, tarp, stapler, planks, rope, magnet

Calculating roofing material link:

http://www.roofhelp.com/calcmatASx.html

Power Point

 

About George Hughes

Mr. Hughes Bullard Havens carpentry teacher
This entry was posted in commercial and residential roofing, Roofing, Semester three 11th grade carpentry. Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *

*


*

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>