Built-Up Roofing: A Trusted Option for Commercial Properties in Gainesville, GA

If you manage or own a commercial property in Gainesville or nearby towns like Cumming, Dawsonville, or Buford, chances are you've come across built-up roofing (BUR) as an option for your flat or low-slope roof. But is it the right system for your building?

Let’s break it down.

What Is Built-Up Roofing?

Built-Up Roofing (BUR) is one of the oldest and most proven commercial roofing systems. It’s made by alternating layers of asphalt (or cold adhesive) with roofing felt or ply sheets, topped with a protective surface like gravel or a mineral cap sheet.

Common Components:

• Bitumen (hot asphalt or cold adhesive)

• Ply Sheets (typically fiberglass or organic felt)

• Cap Sheet or Gravel Surfacing

• Optional insulation and cover boards

Each layer reinforces the roof’s durability. Think of it like armor—multiple shields instead of just one.

Why Choose BUR for Your Commercial Roof?

✅ Proven Longevity

BUR systems have decades of field history. With routine maintenance, they can last 20–30 years or more.

✅ Superior Waterproofing

Multiple plies of felt and bitumen create a redundant, watertight barrier. If the top layer gets damaged, layers underneath still provide protection.

✅ Withstands Traffic & Impact

If your building has rooftop HVAC units or sees foot traffic, BUR holds up well against wear and tear.

✅ Energy Efficient Options

BUR systems can be enhanced with reflective coatings or cool roofing granules to help lower energy bills.

How Is BUR Installed?

Here’s a simplified step-by-step of the hot-applied process:

1. Deck Prep – Surface is cleaned, primed, and insulation is installed if needed.

2. Bitumen Applied Hot – Bitumen is mopped onto the deck using heated asphalt.

3. Ply Sheets Embedded – Felts are rolled into the hot bitumen and broomed flat.

4. Repeat Layers – Typical systems have 3–4 layers.

5. Cap Sheet Added – A mineral-surfaced or gravel-covered top layer protects against UV and weather.

Modern variations may use cold-applied adhesives or hybrid methods for odor-sensitive areas.

Maintenance and Considerations

BUR is low-maintenance—but not no-maintenance. Keep an eye out for:

• Clogged drains

• Flashing wear around penetrations

• Surface cracking or blistering

Annual inspections help extend roof life and catch small issues before they become expensive problems.

Is BUR Right for You?

Best for:

• Low-slope or flat commercial roofs

• Facilities with rooftop equipment

• Property managers who want long-term value

May not be ideal if:

• You need fast installation during freezing temps

• The building can’t tolerate asphalt odor

• You’re looking for the lightest weight option

At L&L Roofing & Construction, we often recommend BUR for commercial clients needing durable, multi-layer protection—especially in Gainesville’s varied weather. And we always install per ASTM and NRCA guidelines for top-quality performance.

FAQs

How long does built-up roofing last?
Typically 20–30 years with proper care.

Is built-up roofing energy efficient?
Yes—especially with reflective coatings or cap sheets that meet “cool roof” standards.

Can BUR handle rooftop foot traffic?
Yes, it’s one of the most durable systems underfoot.

Is built-up roofing more expensive than single-ply?
Initial costs may be higher, but BUR often provides better lifecycle value thanks to longevity and repairability.

Want to learn if built-up roofing is right for your commercial property?

Call L&L Roofing & Construction at (770) 874-0372 or visit our website to schedule a consultation.