Janesville Premium Roofing provides professional roof coatings & sealing in Janesville, WI for residential and commercial properties across south central Wisconsin. Roof coatings work on metal and on low-slope membranes. They do not work on worn asphalt shingles, and the shingle rejuvenation spray being sold door to door around Janesville is the clearest example of a product that survives entirely on the absence of a rule.
Under SPS 321.28 a roof covering goes on per the manufacturer's instructions or a recognized national standard. A soy-based spray applied over aging three-tab is not a roof covering, is not a reroof, and does not restart anything. Nothing in the Uniform Dwelling Code recognizes it, and nothing in the code forbids it either, which is the entire business model. There is no section to cite for it because there is no section about it.
The pitch usually goes further than that: the treatment adds years, and it satisfies your insurer. Neither is a code claim and neither is enforceable anywhere. Above the 1980 line a coated shingle roof is still a shingle roof of whatever age it already was. Below the line there was no code to satisfy in the first place. The spray changes your position with nobody. Ask the salesman to name the section. He will change the subject.
Where coatings genuinely earn their price is metal. An aged standing-seam or corrugated steel roof with sound panels and tired paint takes an acrylic or silicone system well, and you get real years out of a fraction of a replacement cost. We quote that job happily and we do plenty of it on farm and shop buildings out in the county. Those roofs are exactly what coatings were developed for.
Silicone over an existing single-ply membrane is the other honest use. If the seams are sound, the field is dry and the deck is not saturated, a silicone restoration can add a decade to a low-slope roof and carry a manufacturer warranty that actually means something. If moisture is already trapped in the insulation, coating it just seals the problem in. A core cut costs almost nothing and settles the question in one afternoon.
So we test before we quote. Core cuts on low-slope, adhesion tests on metal, and a flat no on asphalt shingles. If somebody has already offered you a shingle treatment and the price sounded good next to a reroof, get the reroof number anyway. Ours is free, and it will show you what the comparison actually looks like. You are entitled to compare the real options rather than the two you were offered.
Our licensed and insured team brings the right materials and equipment to every job — No. 15 asphalt-impregnated felt underlayment, ASTM D4869 Type I underlayment felt, ring-shank nails set into 1x6 board sheathing, No. 28 gauge open-valley sheet metal, 50-pound roll roofing in closed valleys, step flashing and masonry chimney crickets — and backs the work with a written workmanship warranty. We serve Janesville and nearby communities including Beloit, Edgerton, Milton, Evansville.
What We Handle
Everything our roof coatings & sealing in Janesville covers
One crew, one point of contact, and the full range of roof coatings & sealing work in Janesville, WI. If it is on this list we do it in house rather than handing it to a subcontractor:
- roof coating Janesville
- silicone roof coating
- acrylic metal roof coating
- shingle rejuvenation
- membrane restoration coating
- farm building roof coating
- roof coating warranty
- core cut moisture test
- metal roof repaint
- low slope roof restoration
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Janesville services.
Materials, equipment and how we do roof coatings & sealing
The difference between roof coatings & sealing that lasts and roof coatings & sealing that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with No. 15 asphalt-impregnated felt underlayment, ASTM D4869 Type I underlayment felt, ring-shank nails set into 1x6 board sheathing, No. 28 gauge open-valley sheet metal, 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 Janesville 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 south central 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 roof coatings & sealing outside Janesville
Janesville Premium Roofing covers Janesville and the surrounding communities of south central 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.
- Roof Coatings & Sealing in Beloit, WI — Rock County, population 36,657
- Roof Coatings & Sealing in Edgerton, WI — Rock County, population 5,945
- Roof Coatings & Sealing in Milton, WI — Rock County, population 5,716
- Roof Coatings & Sealing in Evansville, WI — Rock County, population 5,703
- Roof Coatings & Sealing in Clinton, WI — Rock County, population 2,221
- Roof Coatings & Sealing in Orfordville, WI — Rock County, population 1,473
Start on the Janesville Premium Roofing homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Janesville Chooses Janesville Premium Roofing
- ✓We pull the assessor's construction year before we price a roof, because June 1, 1980 decides whether the state code governs your reroof or your contract has to.
- ✓Our estimates name specifications rather than adjectives: No. 15 felt or a labeled ASTM D226 Type I synthetic, four fasteners per strip shingle, a two-inch head lap.
- ✓We count existing layers by lifting shingles at the rake and a valley, and the count goes in writing before anything is sent to your insurance carrier.
- ✓We go in the attic on every inspection. Fastener rust, valley staining and packed eaves show on the underside of the sheathing long before they show on top.
The standards behind roof coatings & sealing
Quality here is not a matter of opinion — it is written down. The roof coatings & sealing work we do in Janesville 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 roof coatings & sealing project in Janesville 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 roof coatings & sealing free estimate in Janesville, or request a quote and we'll get right back to you.