Coal Tar Roofing
Cold-process coal tar roofing systems for long-lasting flat roof protection
Is this the right solution for your situation?
If you have a flat roof with chronic ponding water that drainage improvements can't fully resolve — coal tar is one of the few roofing systems specifically rated to handle sustained water exposure without membrane failure.
This system is a strong fit when:
- Flat roofs with chronic ponding water that can't be corrected with drainage improvements
- Occupied buildings where open-flame application is a fire safety concern
- Long-term holds where a 40+ year service life is the goal
- Properties where a historically proven system is preferred over newer materials
When to consider alternatives
Modern single-ply membranes (TPO, EPDM, PVC) are more commonly specified and faster to install. Coal tar's unique advantage is its self-healing characteristic and resistance to ponding water — if those aren't your priorities, single-ply is likely the better fit.
Compare all roofing systems →What working with us looks like
Every project follows the same proven process — from the first site visit through warranty issuance.
01
Inspection
We assess your roof's current condition, often using thermal imaging.
02
Proposal
Detailed scope of work and transparent pricing. No pressure, no upsell.
03
Contract
Clear terms, defined timeline, and warranty commitments in writing.
04
Mobilization
Crews and materials are scheduled. Work typically begins within 2–4 weeks.
05
PM Assigned
A dedicated project manager is your single point of contact through completion.
06
Installation
Factory-trained crews install to manufacturer specs with a 3rd-party safety company on site.
07
Final Inspection
We inspect the finished roof before handover. Issues get fixed before we leave.
08
Warranty Issued
Manufacturer NDL warranty and our 2-year workmanship warranty are issued.
Key Benefits
Coal tar roofing is one of the oldest and most proven flat roof systems available, with documented service lives exceeding 40 years on well-maintained installations. We install cold-process coal tar systems using Garland materials — no open-flame torches required, making it a safe option for occupied commercial facilities. Coal tar's self-healing properties and deep resistance to ponding water make it well-suited for flat roofs where drainage is a persistent challenge.
Self-Healing Properties
Coal tar slowly flows at warm temperatures, allowing minor surface cracks to reseal over time.
Exceptional Water Resistance
Highly resistant to ponding water — one of the few systems rated for sustained water exposure.
No Open Flame
Cold-process application eliminates torch equipment, reducing fire risk on occupied buildings.
Decades of Proven Performance
One of the most historically documented roofing systems, with service lives of 40+ years.
We've done this before
Over two decades of commercial roofing projects across 45 states — retail centers, warehouses, industrial facilities, and everything in between.
View Our WorkAre we qualified for something this big?
We're not a local crew taking on something new. This is what we do — at scale, nationwide, with the certifications and workforce to back it up.
500+
Field Employees
20+
Years in Business
45
States Served
2yr
Workmanship Warranty
What happens if something goes wrong?
Every project is backed by manufacturer warranties and our own workmanship guarantee. If there's a problem, your dedicated project manager is the first call — not a call center.
NDL Manufacturer
Up to 20 Years
10, 15, and 20-year No Dollar Limit options on single ply systems and coatings.
Material
20 Years
Manufacturer-backed material warranty on all single ply installations.
Workmanship
2 Years
Every full replacement includes a 2-year workmanship warranty. Repairs: 90 days to 1 year.
Ready to talk about your project?
Get a ballpark estimate in minutes or reach out directly — we'll get back to you the same day.