Green Bay Roof Pros provides professional flat & low-slope roofing in Green Bay, WI for residential and commercial properties across northeast Wisconsin. Low slope shows up on houses here more than people expect: porch roofs, kitchen and bedroom additions from the 1960s, dormer tops, attached garages and the flat connector between two pitched sections. Those small areas cause a large share of the winter calls.
The reason is drift. A low roof tucked against a taller wall collects everything the wind moves off the slope above it, so it carries snow long after the pitched roof has cleared, and the load sits against the wall junction where the transition detail is weakest. Drift lands unevenly as well, so one end of a small roof carries far more than the other. Those small areas are also the ones nobody ever looks at.
So we build the transition first. Base flashing is carried up the wall well above the depth that snow actually reaches on that elevation, terminated in a reglet or under counter-flashing rather than behind siding, and the membrane is turned up the vertical in one piece. Half the low-slope repairs we are called to are wall details, not field failures. We measure the height we are carrying it to and write that number down.
For the field we use fully adhered or mechanically attached 60-mil TPO and EPDM, and two-ply modified bitumen where torch or self-adhered sheets suit the situation better. Polyiso goes in to the required R-value with tapered packages where the deck holds water, and the fastening pattern is tightened at corners and perimeters. Seams are probed and the perimeter fastening is checked before anything is signed off.
Cold weather changes the method. Adhesives and self-adhered laps have minimum application temperatures, and a seam rolled at twenty degrees is a seam that opens in April. We will tell you when the honest answer is a mechanically attached system now and an adhered one in May, rather than pretending the calendar does not exist. The manufacturer publishes those minimums and we work to them.
On garages and porches we always price a repair alongside the replacement. A sound EPDM field with a failed wall flashing is a flashing job, and quoting it as a tear-off would be the easy way to charge four times as much for the same dry ceiling. We photograph the opened field before recommending either one. A dry ceiling is the deliverable here, not a bigger invoice.
Our licensed and insured team brings the right materials and equipment to every job — ridge vent with external baffles certified to TAS 100 (A), aluminium soffit vent strip fastened at twelve inches on centre, two-stage soffit intake with an expansion chamber and structural baffle, filtered weather media behind a ridge vent, profiled foam and vented ridge closures on standing seam, gooseneck relief hoods with extended throats — and backs the work with a written workmanship warranty. We serve Green Bay and nearby communities including De Pere, Howard, Ashwaubenon, Bellevue.
What We Handle
Everything our flat & low-slope roofing in Green Bay covers
One crew, one point of contact, and the full range of flat & low-slope roofing work in Green Bay, WI. If it is on this list we do it in house rather than handing it to a subcontractor:
- flat roof repair green bay
- low slope roofing wi
- epdm roof green bay
- tpo roofing green bay
- modified bitumen roof
- porch roof replacement green bay
- garage flat roof repair
- rubber roof repair wisconsin
- flat roof leak repair
- tapered insulation flat roof
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Green Bay 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 ridge vent with external baffles certified to TAS 100 (A), aluminium soffit vent strip fastened at twelve inches on centre, two-stage soffit intake with an expansion chamber and structural baffle, filtered weather media behind a ridge vent, 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 Green Bay 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 northeast Wisconsin 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 Green Bay
Green Bay Roof Pros covers Green Bay and the surrounding communities of northeast Wisconsin. 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 De Pere, WI — Brown County, population 25,410
- Flat & Low-Slope Roofing in Howard, WI — Brown County, population 19,950
- Flat & Low-Slope Roofing in Ashwaubenon, WI — Brown County, population 16,991
- Flat & Low-Slope Roofing in Bellevue, WI — Brown County, population 15,935
- Flat & Low-Slope Roofing in Allouez, WI — Brown County, population 14,156
- Flat & Low-Slope Roofing in Suamico, WI — Brown County, population 12,820
Start on the Green Bay Roof Pros homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Green Bay Chooses Green Bay Roof Pros
- ✓We photograph the top of the attic insulation before we look at the shingles, because in this city the March ceiling stain usually started as snow that blew in through a vent
- ✓Every ventilation proposal names the vent model and its wind-driven precipitation certification, not just a net free area figure
- ✓On a wind-exposed roof we will reduce the number of openings rather than add them, and we put the reasoning in writing
- ✓Perforated vinyl soffit in J-channel is not our default intake — we price a fastened metal vent strip or a two-stage baffled intake instead
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 Green Bay 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 Green Bay 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 Green Bay, or request a quote and we'll get right back to you.