New Roof Cost Factors in Dallas

What determines the cost of a new roof in Dallas?

The cost of a new roof depends on how much roof there is, how hard it is to work on, what it is made of, and what has to be fixed underneath. Those factors vary so much from house to house that a fair number is only possible after someone has looked at the roof.

The sections below explain each factor so you know what you are paying for when you read your estimate.

How does roof size affect the cost?

Roofers measure roofs in squares. One square covers 100 square feet of roof surface. A larger home needs more squares of shingles, underlayment and labor, so size is the biggest single factor in the cost.

Your home's floor area is not its roof area. Slope and overhangs make the roof surface larger than the footprint of the house, and complex roofs with many valleys, dormers and hips need more cutting and more materials than a simple gable roof of the same size. That is why estimates based on floor area alone are unreliable.

Signs it may be time to price a new roof

• Your roof has hail damage across several slopes.
• Shingles are curling, cracking or losing granules widely.
• You have had several repairs in the past few years.
• Leaks keep showing up in different rooms.
• You are planning to sell and want to know the roof's condition.

Why does roof pitch matter?

Pitch is how steep the roof is. Steeper roofs take longer to work on, need extra safety equipment and make it harder to move materials, so they usually cost more to replace. Very low-slope sections may need different materials than the rest of the roof.

How does the roofing material change the price?

Standard architectural asphalt shingles are the most common choice in Dallas. Class 4 impact-resistant shingles usually cost more than standard shingles because of how they are made, and some homeowners choose them because hail is common in North Texas. Metal roofing usually costs more up front than shingles but lasts longer.

Underlayment, ridge vents, drip edge and flashing are part of the roof too, and better versions of those parts affect the total.

How do you get a written estimate for a new roof?

1. 1

   Call to arrange an inspection

   Call to arrange a visit to your Dallas-area home.

2. 2

   Measurements and inspection

   The roof is measured and inspected, including pitch, layers, vents and the condition of the deck where it can be seen.

3. 3

   Material options

   You talk through shingle and metal options and what each means for your home.

4. 4

   Written estimate

   You receive a written estimate that lists the work and materials for your roof.

Do old roof layers add to the cost?

Yes. Some Dallas homes have two layers of shingles because a new roof was once installed over an old one. Each layer has to be torn off and hauled away, which adds labor and disposal costs. Removing all layers also lets the deck underneath be checked properly.

What is roof decking and why might it need replacing?

The decking is the layer of wood boards or panels that the roof is nailed to. If water has been getting in, parts of it may be soft or rotten. Damaged decking has to be replaced before a new roof goes on, and the full extent is often only clear once the old shingles are removed.

Ask how decking changes are approved before you sign. A good estimate states the allowance included, the price per sheet or board beyond that allowance, and that extra decking work is approved by you before it goes ahead.

How do I compare roof replacement estimates?

A replacement quote should describe the whole roof system, not just a shingle count. When you compare written estimates, check that each one lists the same scope:

• Roof area and slope, and how they were measured.
• Tear-off and disposal of the old layers.
• Underlayment type and where it goes.
• Flashing: new or reused, and where.
• Ventilation: ridge, roof or other vents.
• Decking: the allowance included, and how extra damage is approved and priced.
• The selected material, including underlayment and accessories.
• Clean-up and disposal.
• Written warranty terms, if offered.

What should I ask about warranties?

If warranty terms are offered with your estimate, ask what the material warranty covers and for how long, what the labor or workmanship coverage includes, who handles a claim if something goes wrong, and what could void the coverage. Get the answers in writing with the estimate.

Do I need a permit for a new roof in Dallas?

Many cities in the Dallas-Fort Worth area require a permit for a roof replacement, and permit rules vary from city to city. Permit fees are part of the cost of the project. Your estimate should show whether a permit is included.

Does the shape of my roof affect the cost?

Yes. A simple roof with two large slopes is quicker to cover than one with many hips, valleys, dormers and skylights. Each valley and wall joint needs extra flashing and careful cutting, and each skylight or chimney needs to be sealed. Two roofs with the same square footage can need very different amounts of labor and material because of their shape.

Are vents and flashing included in a new roof?

They should be. A full roof replacement normally includes new underlayment, drip edge, flashing where needed, pipe boots and roof vents. Your written estimate should list these items so you can see exactly what is covered.

Common questions