Commercial & Multi-Family
Flat, low-slope, and everything property managers actually worry about.
Tenants who can't be displaced. Boards that need documentation. Budgets set a year in advance. Commercial roofing is only half about the membrane, the rest is scheduling, paperwork, and someone who answers the phone.
Who this is for
Owners, managers, HOAs, and multi-family.
Different stakeholders, same three anxieties: will this disrupt my tenants, will I have documentation when someone asks, and will the schedule hold?
A commercial roof project is a logistics problem wearing a construction costume. The membrane spec is usually the easy part. The hard part is staging materials without blocking a loading dock, keeping noise off the side of the building where the daycare tenant is, and making sure the crane lift happens on a Sunday morning instead of a Tuesday at ten.
So that's where I start. Before I quote a system, I want to know your tenant mix, your access constraints, your quiet hours, and who has to sign off. The scope follows from that, not the other way around.
Documentation is the second half. Property managers get asked to justify spending to owners and boards who never set foot on the roof. Every project I run generates photo documentation, written condition reports, and scope detail specific enough to survive a budget meeting without you having to translate it.
And you get one number to call. Not a salesperson who disappears after signing, a project manager you've never met, and a crew lead who doesn't have your contact information. Me, start to finish.
Systems
What goes on a commercial roof, and when each one is the right call.
The correct system depends on slope, deck condition, mechanical load, and how long you plan to hold the asset.
TPO Membrane
Best forMost flat and low-slope commercial buildings being fully replaced.
Thermoplastic polyolefin is the default single-ply for good reason: heat-welded seams that are stronger than the sheet itself, a reflective white surface that cuts summer cooling load, and strong performance under Colorado's UV exposure at altitude. Available in multiple thicknesses, on a building with heavy rooftop foot traffic for mechanical service, the thicker mil is worth the small premium.
Modified Bitumen
Best forRoofs with heavy foot traffic, or where a redundant multi-ply system is preferred.
Mod-bit is asphalt reinforced with polymer, installed in multiple plies. It's tough, puncture-resistant, and easy to repair with materials that will still exist in fifteen years. It runs hotter than a reflective membrane, so on a cooling-dominated building I'll usually recommend TPO instead unless traffic or existing assembly points the other way.
Silicone Roof Coatings
Best forA structurally sound roof that's leaking at seams and details, not failing wholesale.
A fluid-applied silicone system is sprayed or rolled over the existing roof, creating a seamless, highly UV-stable, fully adhered membrane. It can add ten to fifteen years for a fraction of tear-off cost, it's non-disruptive to tenants, and in many cases it can be capitalized differently than a full replacement. The condition of the substrate decides whether it's viable, see the comparison below.
Low-Slope Assemblies
Best forBuildings with slope too shallow for shingles but real drainage requirements.
Low-slope roofs live or die on drainage. Ponding water is what turns a small detail failure into a deck replacement. On these roofs I spend as much time on tapered insulation, drain condition, and scupper detail as on the membrane itself.
Steep-Slope Commercial
Best forMulti-family, townhome communities, and mixed-use with pitched roofs.
Multi-family steep-slope is closer to residential work at scale, architectural or impact-resistant shingles, correct ventilation per building, and phased scheduling so residents aren't all displaced from parking on the same day. Class 4 shingles are frequently worth it here for the same insurance reasons they are on a house, multiplied by unit count.
Repairs & Detail Work
Best forIsolated leaks, mechanical curb failures, and post-storm triage.
Most commercial leaks are not membrane failures, they're pitch pans, mechanical curbs, penetrations added after the fact by an HVAC contractor, or a seam that was never welded properly. Finding the actual entry point matters more than the patch. I document the source before repairing so you know what happened, not just that it stopped.
Decision framework
Coating or replacement? Here's the honest test.
A silicone coating is a genuinely great answer to the right roof and a waste of money on the wrong one. This is how I decide which one you have.
Coating makes sense when
Substrate is sound and the failures are at details and seams.
- Core samples come back dry, the insulation below isn't saturated
- The membrane is aged and chalky but not shrinking, splitting, or delaminating
- Leaks trace to seams, flashings, and penetrations rather than field failures
- Drainage works; there's no chronic ponding sitting for days after a storm
- The building must stay fully occupied with minimal noise and no tear-off debris
- You need to extend service life ten-plus years while capital is planned
Replacement is the right call when
The problem is below the surface, where a coating can't reach.
- Wet insulation shows up in core cuts or an infrared scan
- The deck itself is corroded, rotted, or structurally soft underfoot
- The membrane is shrinking, splitting, or pulling away at parapets
- The roof already carries multiple layers at or past code limits
- Ponding is chronic and the assembly needs tapered insulation to fix it
- You'd be coating over a roof that will fail again inside the coating's warranty
I don't decide this from the parking lot. Core cuts and moisture scanning tell us what the insulation is doing, and that answer, not a preference for the bigger invoice, determines the recommendation.
Property manager services
The work that happens between projects.
Most of what a manager needs isn't a roof replacement. It's knowing the condition of every roof in the portfolio before something fails.
Portfolio-wide inspections
Every property assessed on one schedule, with a consistent report format across the whole portfolio.
Preventative maintenance programs
Scheduled visits that clear drains, reseal details, and catch small failures while they're still small.
Budget planning documentation
Remaining service life and projected replacement year per building, so capital requests aren't guesswork.
Emergency response
Tarping, leak mitigation, and same-day triage when a storm hits mid-lease.
Capital-planning reports
Written condition assessments with photos, priorities, and cost ranges, formatted for owners and boards.
Warranty and claim documentation
Records that stay organized so a claim three years from now doesn't depend on someone's inbox.
Why owners call
Three reasons this keeps coming back to me.
One point of contact
You have my cell number. Not a call center, not a rotating project manager. The person who inspected the roof is the person who scopes it, runs it, and answers when something needs an answer at 4:45 on a Friday.
Documentation that survives a board meeting
Photos with locations, written condition findings, itemized scope, and clear cost ranges. When an owner or a board asks why this line item exists, you have the answer in front of you instead of forwarding my email and hoping.
Minimal disruption to tenants
Staging planned around access and hours, noise sequenced away from the sensitive side of the building, parking and dumpster placement communicated before the crew arrives. Tenants complaining to you is a scheduling failure, and it's mine to prevent.
Next step
Let's get eyes on your roof.
Free, no obligation, and usually same-day when scheduling permits. You'll get photos, a plain-English report, and an honest answer, even if that answer is “your roof is fine.”
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