New Construction Roofing: What Homebuyers Should Know

Updated January 2025 • 6 min read

When you're building a new home, there are a million decisions. Cabinet finishes. Flooring. Paint colors. The roof usually gets about 30 seconds of thought: "Yeah, I guess that gray looks fine."

But the roof is one of the biggest cost items in your home – and one of the hardest to change later. Here's what you should actually be thinking about.

What Builders Typically Include

Most builders have a "standard" roofing package. In Knoxville, that usually means:

Basic 3-tab or entry-level architectural shingles
25-30 year warranty shingles
Standard synthetic underlayment
Minimum code-required ventilation

This is perfectly fine. It meets code. It'll work. But it's also the cheapest option that's acceptable. You can often do better.

Upgrades Worth Considering

Better Shingles

Architectural shingles (if not already standard): Thicker, more dimensional, longer-lasting than 3-tab. Usually a minor upgrade cost but adds 5-10 years of life.

Impact-resistant shingles: Class 3 or 4 rated shingles can save you on insurance premiums. Some insurers give 10-25% discounts. Do the math over 20 years – the upgrade might pay for itself.

Premium brands: The difference between builder-grade and premium shingles (like GAF Timberline HDZ vs. entry-level architectural) isn't huge in cost but is noticeable in appearance and durability.

Better Underlayment

Underlayment is the layer under your shingles. Upgrades include:

Synthetic underlayment: More durable than traditional felt, lies flatter. Most builders use this now, but verify.

Ice and water shield: Waterproof membrane at eaves, valleys, and around penetrations. Code requires some, but more coverage is better, especially in valleys.

Enhanced Ventilation

Minimum code ventilation is just that – minimum. Better ventilation means:

Longer shingle life
Lower attic temperatures in summer
Reduced ice dam risk
Better moisture control

A continuous ridge vent (vs. box vents) with adequate soffit intake is a worthwhile upgrade.

Questions to Ask Your Builder

What brand and model of shingles are included?
What's the warranty on the standard package?
What upgrade options are available, and what do they cost?
Who's the roofing subcontractor?
Will there be a final roof inspection?
How is the warranty handled – through you or the sub?

The Subcontractor Question

Builders usually subcontract roofing. The quality of that sub matters a lot. A good builder uses reliable subs they've worked with for years. Budget builders use whoever's cheapest.

You can ask:

Who typically does your roofing?
How long have you worked with them?
Can I see examples of their work?

Some contracts allow you to hire your own roofer. This is unusual but not unheard of, especially with custom builds. Worth asking if you have a trusted roofer.

Inspection Tips

During construction, have your home inspector check the roof at these stages:

Pre-Shingle

Before shingles go on, check:

Decking is properly fastened
Underlayment is installed correctly
Ice and water shield is in the right places
Drip edge is installed

After Completion

Check:

Shingles laid properly, aligned correctly
Flashing around all penetrations
Ridge vent installed correctly
No exposed nails
Valleys done properly

Standard home inspections check the roof, but having someone look specifically at roof work during construction catches problems that would be hidden later.

What About Metal Roofing?

Some builders offer metal roofing upgrades. In new construction, this can be more affordable than retrofitting later. If you're considering metal, this is the time.

Consider metal if:

You plan to stay long-term (metal pays back over time)
The home's style suits it
You want minimal maintenance
Energy efficiency is a priority

Want to learn more about metal roofing? Check out our complete guide to metal roof pros and cons.

The premium is usually 50-100% more than shingles. Get the exact numbers from your builder.

Don't Forget the Warranty

Get clear documentation on:

Manufacturer warranty on shingles
Workmanship warranty from the roofing sub
What's covered under builder's warranty
How to file warranty claims

Make sure the manufacturer warranty gets properly registered. This often requires specific paperwork that gets forgotten in the construction chaos.

Planning a New Build?

Talk to Knoxville roofing experts about options before construction starts.

Get Expert Advice

The Bottom Line

Your roof isn't as exciting as kitchen counters. But it's going to be on your house for 20-30 years, and it protects everything underneath it. Spend an hour thinking about it during construction, and you won't spend years regretting shortcuts.