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A commercial roof fails differently than a house roof. It is usually low-slope or flat, it carries HVAC units, drains, and penetrations that a shingle roof never sees, and when it leaks the damage lands on tenants, inventory, and the owner’s income instead of a bedroom ceiling. Property managers, HOA boards, and building owners across the Portland metro area have trusted LADA Exteriors with commercial and multifamily roofing since 1997, because the company handles the whole building envelope and sizes its crews for projects that span multiple buildings and occupied units.
Call 503-860-6660 to Discuss Your Commercial Roofing Project
Family owned since 1997. Licensed in Oregon and Washington. PVC and TPO membrane, standing seam metal, and composition systems for commercial and multifamily buildings. Phased scheduling around occupied properties.
Signs Your Commercial or Multifamily Roof Needs Attention
Flat and low-slope roofs give warning in ways that are easy to miss from the ground. Water ponds for days after a storm instead of draining, seams in the membrane lift or show wrinkles, flashing around HVAC curbs and vent pipes has pulled away, and gravel or granules collect at the drains. Inside, tenants report stains on ceiling tiles, maintenance tickets for the same unit keep coming back, and the roof is taking more patches every year than the year before.
The Portland climate is hard on commercial roofing because the roof never gets a chance to dry. Nine months of rain keep water sitting at every low spot and every clogged drain, and membrane seams, curb flashing, and parapet caps that would last for years in a drier climate fail here first. Moss and debris from the firs that surround most Portland-area buildings block drains and hold water against the roof.
A roof assessment tells you where the building stands. Sometimes the membrane has years left and the fix is a round of seam and flashing repairs plus a drain cleaning schedule. When patches are chasing each other across the roof, a replacement planned around the building’s budget cycle costs less than another year of emergency repairs and interior damage.
Commercial Roofing Systems We Install in the Portland Metro Area
The right system depends on the slope of the roof, what sits on it, the building’s use, and how long the owner plans to hold it.
PVC Membrane Roofing
Single-ply PVC is our first recommendation for most flat and low-slope commercial roofs in the Northwest. The seams are heat welded into a single watertight sheet, the membrane resists ponding water, chemicals, and rooftop grease, and it comes in white, dark brown, and charcoal gray. PVC handles the standing water and constant damp that defeat other systems here.
TPO Membrane Roofing
TPO is a cost-effective single-ply alternative with heat-welded seams and a reflective white surface that reduces cooling load on warehouses, retail, and office buildings. We install TPO on roofs where budget is the driver and the roof drains well.
Standing Seam Metal Roofing
For sloped commercial roofs, multifamily buildings, and owners who want the longest service life, standing seam metal panels shed rain and moss, never rot, resist fire and wind, and routinely outlast two or three membrane roofs. Metal also pairs with the metal siding many newer commercial buildings use.
Composition Shingle Roofing for Multifamily
Townhome and apartment communities with pitched roofs are re-roofed with Owens Corning Duration architectural shingles installed to manufacturer specifications across every building, with roof-to-wall flashing corrected as part of the scope rather than left for someone else.
Commercial Roof Repair and Maintenance
Seam repair, curb and penetration flashing, drain and scupper repair, parapet cap replacement, and scheduled inspection and cleaning programs that extend the life of a roof and give property managers a documented maintenance record.
Roof Replacement With Envelope Repair
When a failed roof has rotted the deck, parapet framing, or the walls below, our siding, flashing, and construction defect repair crews handle it in the same project, so the building is dry from the roof down rather than patched at the top.
Why Property Managers and Owners Choose LADA Exteriors for Commercial Roofing
Commercial roofing is as much about scheduling, safety, and communication as it is about the membrane. Those are the parts we have spent nearly three decades getting right.
Crews Sized for Multi-Building Projects
As one of the largest exterior contractors in Oregon, we staff commercial and multifamily projects with dedicated crews, a site foreman on every building, and a project manager who handles permits, inspections, materials, and tenant communication from start to finish.
Work Phased Around Occupied Buildings
Tenants stay in business and residents stay home. Tear-off is sequenced by section and dried in daily, rooftop equipment is coordinated with your HVAC contractor, and access, noise, and parking are planned and communicated before the crew arrives.
The Whole Envelope Under One Contract
Roofing, roof-to-wall flashing, siding, windows, and structural repair are all in-house, so when the roof problem turns out to be a wall problem there is no second contractor and no gap in accountability. Larger envelope projects are covered on our multifamily and commercial page.
Documentation Boards and Owners Can Use
You receive a written scope by building and phase, itemized pricing, photo documentation of conditions found, and manufacturer and workmanship warranties, which is what reserve studies, lender requirements, and HOA votes require.
Rated Among the Top Commercial Roofing Contractors in Oregon
Hundreds of multifamily and commercial exterior projects across Portland and Southwest Washington have built our reputation with property management companies, HOA boards, and building owners who need the roof done once and done right.
- Family owned exterior contractor serving Portland since 1997
- Licensed, bonded, and insured in Oregon (CCB #126473) and Washington
- PVC, TPO, standing seam metal, and composition systems installed to manufacturer specifications
- Experienced with HOA boards, property managers, and multi-building phased projects
What to Expect From a Commercial Roofing Project
Step 1. Roof Assessment and Scope
We inspect the roof surface, seams, flashing, drains, and penetrations, check the deck and the interior for moisture, and deliver a written scope and itemized estimate with a clear recommendation on repair versus replacement.
Step 2. System Selection and Planning
We help you choose the membrane or panel system, coordinate rooftop equipment and drainage improvements, handle permits and engineering, and plan phasing and tenant communication with your management team.
Step 3. Phased Installation
Sections are torn off, deck repaired, insulation and membrane or panels installed, and flashing and drains completed so each section is watertight before the crew moves on. A foreman is on site daily and the project manager reports progress on a set schedule.
Step 4. Final Inspection, Documentation, and Warranty
The finished roof is walked with your team, punch lists are closed, and you receive photo documentation, the manufacturer’s system warranty, and our written workmanship warranty.
Commercial Roofing Contractors Serving Portland, Beaverton, Hillsboro, and Beyond
Our crews work throughout the Portland metro area and across the river in Southwest Washington. Property managers, HOAs, and building owners in Portland, Beaverton, Hillsboro, Tigard, Lake Oswego, Tualatin, Sherwood, and Vancouver call on us for commercial and multifamily roofing, and we regularly take on properties in Wilsonville, Oregon City, Gresham, and Happy Valley as well. Residential roofing is covered on our main roof replacement page.
Frequently Asked Questions About Commercial Roofing in Portland
How Is a Commercial Roof Replacement Priced?
Commercial roofing is priced per project, and the biggest factors are the square footage, the system chosen, the number of penetrations, curbs, and drains, the amount of deck repair found during tear-off, insulation requirements, and phasing around an occupied building. We provide itemized scopes by building and phase, and every assessment is free.
PVC or TPO, Which Is Better for a Portland Roof?
Both are heat-welded single-ply membranes. PVC costs more and handles ponding water, grease, and chemicals better, which makes it our usual recommendation on restaurants, roofs that do not drain perfectly, and buildings the owner plans to keep. TPO is the budget choice for well-drained roofs.
Can You Roof an Occupied Building?
Yes. Nearly all of our commercial and multifamily work is on occupied buildings. Work is phased by section, each section is dried in daily, and access, noise, and parking are coordinated with your tenants or residents in advance.
How Long Does a Commercial Roof Last in the Northwest?
Membrane roofs commonly deliver twenty years or more with maintenance, and standing seam metal often doubles that. Clear drains, intact flashing, and an annual inspection are what get a roof to the far end of its range here.
Do You Offer Maintenance Programs?
Yes. Scheduled inspections, drain and debris cleaning, and seam and flashing touch-ups with a written report after each visit, which keeps the manufacturer warranty in force and gives owners a maintenance record.
Schedule a Free Commercial Roof Assessment With Portland’s Exterior Experts
If the same leak keeps showing up in the maintenance log, the roof is taking more patches every year, or the reserve study has flagged it, the next step is a walk of the roof. An assessment costs nothing and ends with a written scope your ownership group or board can act on. Request your roof assessment or call 503-860-6660.