Detroit Roof Pros provides professional flat & low-slope roofing in Detroit, MI for residential and commercial properties across southeast Michigan. The low-slope roofs on this housing stock are small, and most of them sit directly over a finished room with a plaster ceiling and no cavity worth speaking of. That, and not the membrane on top, is what makes them fail early.
A typical example is a twelve-by-fourteen rear addition or an enclosed side porch, framed with two-by-sixes at a quarter-inch per foot, the ceiling nailed straight to the underside, insulation stuffed hard into the bay, and nothing above it but sheathing and roofing. There is no vent path anywhere in that sandwich. There never was one, and on a bay that shallow there is no room to add one.
In climate zone 5A, which is where Wayne County sits under the Michigan energy code, that assembly is a condensation machine unless the vapor side is handled deliberately. Michigan's residential code recognizes unvented enclosed rafter assemblies and sets conditions on them, including a requirement in zone five and above that air-impermeable insulation be a class II vapor retarder or carry one in direct contact with its underside.
So on these roofs we do the work in the right order. Air seal the ceiling plane from below wherever we can reach it, insulate to a specification that keeps the sheathing above the dew point rather than simply filling the cavity to the joist face, and only then talk about the covering. A membrane laid over a wet, cold-sheathed bay simply fails again in about four years, and you will quite reasonably blame the membrane for it.
For the covering, we default to a two-ply SBS-modified system with the cap sheet granulated, on small residential decks of this kind around here. It tolerates foot traffic from anyone servicing equipment, handles the cold better than a single-ply does on a small roof with many terminations, and comes cold-applied or self-adhered so nobody carries an open torch onto a ninety-year-old wood-framed house.
Drainage gets designed rather than inherited. We shim to a working slope with tapered stock where the framing has sagged, set a scupper or an interior drain that genuinely drains, and terminate the membrane into a cut reglet on the brick rather than under a smear of sealant. Ponding on a roof this small is almost always a framing problem wearing a roofing costume.
Our licensed and insured team brings the right materials and equipment to every job — rafter-bay ventilation baffles, closed-cell spray polyurethane at the deck underside, knee-wall access panels, shed-dormer cheek-wall step flashing, plaster-and-lath ceiling planes, square-edge 1x6 board sheathing — and backs the work with a written workmanship warranty. We serve Detroit and nearby communities including Dearborn, Dearborn Heights, Livonia, Redford.
What We Handle
Everything our flat & low-slope roofing in Detroit covers
One crew, one point of contact, and the full range of flat & low-slope roofing work in Detroit, MI. If it is on this list we do it in house rather than handing it to a subcontractor:
- flat roof repair Detroit
- low slope addition roof
- porch roof replacement
- modified bitumen roofing
- EPDM residential
- unvented low slope assembly
- vapor control climate zone 5
- dormer top low slope
- ponding water repair
- torch down alternative
- self adhered cap sheet
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Detroit services.
Materials, equipment and how we do flat & low-slope roofing
The difference between flat & low-slope roofing that lasts and flat & low-slope roofing that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with rafter-bay ventilation baffles, closed-cell spray polyurethane at the deck underside, knee-wall access panels, shed-dormer cheek-wall step flashing, spec them to the job instead of to the invoice, and write the material grades into the free estimate so you know exactly what you are buying.
Every Detroit job runs the same way: site walk and measurements, written scope and fixed price, protection of the surrounding area, then the work itself with a daily clean-up. Years of roofing work in southeast Michigan means we have already met whatever your property is going to throw at us — awkward access, older construction, an HOA with opinions.
Where we do flat & low-slope roofing outside Detroit
Detroit Roof Pros covers Detroit and the surrounding communities of southeast Michigan. Crews run out to the same nearby cities every week, so an out-of-town job does not mean an out-of-town price.
- Flat & Low-Slope Roofing in Dearborn, MI — Wayne County, population 109,976
- Flat & Low-Slope Roofing in Dearborn Heights, MI — Wayne County, population 63,292
- Flat & Low-Slope Roofing in Livonia, MI — Wayne County, population 95,535
- Flat & Low-Slope Roofing in Redford, MI — Wayne County, population 49,504
- Flat & Low-Slope Roofing in Garden City, MI — Wayne County, population 27,380
- Flat & Low-Slope Roofing in Wyandotte, MI — Wayne County, population 25,058
Start on the Detroit Roof Pros homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Detroit Chooses Detroit Roof Pros
- ✓We label every roof plane attic above or finished space above before we price anything, because that is what decides whether a repair or a replacement is the honest answer.
- ✓The inspection happens indoors as well as outdoors. A pin moisture meter on plaster at the knee-wall base finds what a scuttle-hole inspection structurally cannot reach.
- ✓Deck work is priced as its own line. Square-edge 1x6 board sheathing is renailed where sound and overlaid by the section where it is not, with the square footage stated.
- ✓Ventilation is quoted as a path, not a product. If the wood soffit behind your aluminum was never cut open, a ridge vent has been drawing on nothing for years.
The standards behind flat & low-slope roofing
Quality here is not a matter of opinion — it is written down. The flat & low-slope roofing work we do in Detroit follows published industry standards: NRCA publishes the Roofing Manual, the industry's reference for details and slope minimums, and Asphalt Roofing Manufacturers Association sets the shingle application and ventilation guidance the warranties reference. If a contractor cannot tell you which standard a detail comes from, that is worth asking about before you sign.
Every flat & low-slope roofing project in Detroit gets the same attention, whether it is a single room or a full commercial job. We show up on schedule, keep the site clean, and stand behind the work — the estimate is free and there is no pressure.
Ready to get started? Call (844) 511-2320 for a free flat & low-slope roofing free estimate in Detroit, or request a quote and we'll get right back to you.