Twin Cities roofs face freeze-thaw cycles from November into April, late-spring hail, and heavy snow load. Longfellow bungalows and Summit Avenue Victorians fail in different places than Highland Park ramblers. Here is what we look for, and how we fix it.
Common Roof Problems in Saint Paul and Minneapolis
Most leaks we chase in Saint Paul start at an edge, a penetration, or a low-slope valley, and they rarely surface directly below the failure.
- Ice dams — meltwater backs up behind a frozen gutter, wicks under the eave, and soaks the roof deck and insulation above your ceiling.
- Granule loss — late-spring hail knocks the surface off an asphalt shingle, and the exposed mat then curls, cracks, and flakes away.
- Flashing failures — step flashing, counter-flashing, and chimney flashing corrode or pull loose, so water seeps straight into the sheathing.
- Valley erosion — a valley carries twice the water of any field course, and worn metal lets that flow erode the underlayment below.
- Blocked gutters and downspouts — leaf debris ponds water at the fascia, and the soffit behind it rots long before you see an indoor stain.
- Attic condensation — weak ventilation with no vapor barrier lets moisture condense on the deck, which feeds mold and speeds decay.
- Deck rot and sag — plywood or OSB sheathing that stays wet will spall, settle, and sag, and the rafters carrying it can sag too.
Roofing Materials We Install Across the Twin Cities
Material choice here comes down to impact resistance, snow shedding, and how the system handles ice at the eave.
- Asphalt shingle — an architectural shingle profile outlasts a three-tab shingle on hail-prone roofs, and both set fast over new synthetic underlayment.
- Wood shake and cedar shake — right for historic homes, but they hold snow, so we inspect them yearly for rot and splitting.
- Slate, clay tile, and concrete tile — heavy, long-lived coverings that require a truss, rafter, and ridge beam check before we add dead load.
- Standing-seam panel — a metal panel with concealed fasteners that sheds snow and resists wind uplift better than most roofing products.
- Corrugated panel — affordable metal roofing for garages, sheds, and awning or canopy frames, though exposed screw fasteners need resealing.
- TPO and EPDM — single-ply membrane for flat roofs, laid over a clean substrate and welded or adhered at every lap.
- PVC membrane — a flat roofing option for commercial kitchens and buildings with grease exhaust, since it resists chemical breakdown.
- Built-up roof and modified bitumen — layered asphalt, bitumen, and roofing felt that we recoat or overlay when the field is still sound.
- Tar paper and roofing felt — the old standard, now mostly replaced by synthetic underlayment, which is lighter and resists tearing.
- Roof pitch — anything above an 8:12 pitch needs scaffold, ladder staging, and a safety harness, which changes labor and timeline.
How We Build and Protect the Roof System
A roof is a layered system, and what sits under the shingles decides whether the top course lasts fifteen years or forty.
- Full tear-off — we strip down to the decking instead of an overlay, so we can sight the substrate and replace any rotted plywood or OSB.
- Ice-and-water shield — a self-adhered membrane runs along the eave, up the rake, and through every valley where ponding is likely.
- Starter course and field course — staggered courses, ring-shank nails, and fasteners driven at the right depth, since an overdriven nail tears the mat.
- Ridge cap and ridge vent — capping the hip and ridge while hot attic air leaves through a ridge vent balanced with a soffit vent.
- Drip edge and rake trim — metal at the eave and rake that pushes water clear of the fascia and keeps the soffit dry.
- Pipe boot and vent boot — new rubber collars at every pipe flashing, bedded in roof cement and finished with a bead of sealant or caulk.
- Skylight and dormer work — curb flashing, apron flashing, and boot flashing rebuilt around a skylight, dormer, or chimney, with counter-flashing set into the mortar.
- Framing and layout — truss, joist, purlin, and batten or counterbatten checks happen before we load the roof, and a roofing square sets every course line.
- Jobsite setup — a dumpster for debris, a nail gun and air compressor for production, a pry bar and roofing shovel for tear-off, plus ladder and scaffold access.
- Snow guards — small anchors above doors and walkways that hold a sliding snowpack on metal and slate rooftops.
- Coating and repair work — a reflective coating over sound modified bitumen, or a mastic and adhesive repair that reseals a seam before it fails.
- Weatherproofing checks — every job closes with a waterproofing check at the penetrations and a look at insulation, ventilation, and attic fan function.
Flat Roofs, Historic Roofs, and Multi-Family Buildings
Both cities carry flat-roofed commercial buildings, century-old houses, and apartment blocks where tenants never actually leave.
- Flat and low-slope work — a parapet wall with sound coping and a clear scupper keeps ponding water moving off the rooftop instead of sitting there.
- Torch-applied roofing — where code and substrate allow, we torch modified bitumen; otherwise we roll a self-adhered sheet and press it flat.
- Roof shapes — hip, gable, mansard, and gambrel roofs each drain differently, and the verge and overhang detail changes on all four.
- Historic rooflines — Summit Hill, Macalester-Groveland, and Merriam Park homes often need a profile match to keep the roofline reading correctly from the street.
- Multi-family occupancy — tenants stay put while we work, with debris containment, scheduled hours, and active leaks treated as priority one.
Why Twin Cities Homeowners Choose Us
We are licensed and insured, we work Minneapolis and Saint Paul neighborhoods year-round, and we tell you what we find before we sell you anything.
- Free estimate and roof inspection — a documented roof estimate with photos, delivered by a licensed roofer rather than a salesperson.
- Insurance claim assistance — we walk the storm damage with your adjuster and help with the line-item estimate and any supplemental claim.
- Emergency roof repair — active leaks at occupied buildings jump the line, and we tarp the same day whenever weather allows.
- Gutter installation — seamless gutters and downspouts sized to the roof area, plus the reseal and recaulk that keeps water moving.
- Building code compliance — we pull permits and build to Minnesota building code, including the amendments that apply on older homes.
- Neighborhood coverage — Northeast and North Minneapolis near the Stone Arch Bridge, Uptown around Lake of the Isles, Longfellow by Minnehaha Falls, and Southwest, with Como Park and Highland Park across the Mississippi River.
- Roofing services under one crew — roof repair, roof replacement, skylight installation, and siding work you can schedule together.
If you see a ceiling stain, shingles in the yard, or a roofline past its end-of-life wear, call Minneapolis Roof Pros at 612-979-0693.
We will tell you what is failing, what it costs to fix, and how soon it needs to happen.