Roofing 101

At Rowley Roofing & Construction, Inc. in Frisco, TX, our contractors offer a variety of services for home and business owners throughout the region. To help you better understand the repair and replacement process, we have compiled the following roofing information resources:

Soffit Vents

This term refers to an under eave opening needed for intake of outside air. Vents are needed for good attic ventilation.

In-Roof Vent

Also called 750 or Box Vent, this component is used to further the ventilation of your attic. It typically covers 200 square feet of attic space.

Ridge Vent

Ridge vents are types of vents installed at the peak of a sloped roof which allows for warm, humid air to escape a building’s attic. They are most common on shingled residential homes and blend into the roofline for a more attractive home.

Gable End Vents

This term refers to a triangular or rectangular ventilation opening found in a gable wall.


This term refers to heavy paper saturated with tar and installed over the decking/plywood sheeting and under the shingles in order to provide another layer of protection from the outside elements.


The shingles/tiles compose the outermost layer of the roof. They are installed over the underlayment and provide the most protection from the outside elements.

Starter Strip

The strip is the first row of shingles installed on a roof under the first exposed row. Strips are typically composed of 20 year, 3-tab shingles.

Drip Edge

The drip edge is a metal strip used on eaves to allow for water runoff without damaging underlying materials.


This term refers to a fat horizontal band around the roof’s perimeter.


Blisters are bubbles that appear on the surface of asphalt roofing.


The plywood material installed over the framing of a structure on which felt and shingles are installed.


A dormer is a window unit projecting through the sloping plane of the roof.


The slope is degree of incline of a roof plane.


A square is a unit of roof measurement covering 100 square feet.


The intersection of two roof slopes.


This is the highest point or peak of the roof.


This is the high point where two adjoining roof sections meet.


This term refers to the steepness of a roof.


Eaves are the part of the roof that hangs over the rest of the home.


Gables are the triangular portions of the ends of the home that extend from the eaves to the peak of the roof.

Z-Ridge/Double Ridge

This product is designed to cover the ridge line of the roof to give the roof line more character.

Gas Caps

This is the top to the pipe that dispenses hot gas/air upwards.

Wind Turbine

These vents spin when the wind blows in order to remove hot air from the attic.

Power Turbine

The turbine is an electrical vent that draws hot air out of the attic.

Static Vent

This exhaust vent allows hot air to escape the attic without powered assistance.

Contact our contractors to use our roofing information to aid in your service selection. Our company features options for home and business owners throughout Frisco, Texas.