Superior Roofing Inc.

Superior Roofing Inc. Family-owned roofing experts with 30+ years of experience. We protect homes & businesses with honest inspections, skilled crews, and roofs built to last.

Residential, commercial, repairs & storm damage. Superior care, every time.

If you have a metal roof over a doorway, a walkway, a sidewalk, a gas meter or a parking stall, read this now and not in...
09/03/2026

If you have a metal roof over a doorway, a walkway, a sidewalk, a gas meter or a parking stall, read this now and not in December.

Snow does not slide off asphalt shingles. It grabs the granules and stays put until it melts. Metal is the opposite. Snow sits on a metal panel for weeks, a sunny afternoon or a warm garage below melts the bottom layer, and the entire slab releases at once and comes down as a sheet.

That is an avalanche, not a snowfall. We have seen it flatten a downspout, tear a gutter off the fascia, bury a back door, crush shrubs, and dent a truck hood. On commercial buildings it lands on entrances where people walk.

Snow guards are the fix. They are small brackets or continuous rails that hold the snowpack on the panel so it melts and sheds gradually instead of letting go in one piece.

What actually matters when they get installed:

They have to be laid out for your panel type and your roof pitch and slope length, not spaced by eye. A guard that is under specified transfers load into the panel seam and can damage the roof it was supposed to protect.

Attachment method matters. On standing seam, clamped guards that grip the seam avoid new holes. On exposed fastener panels, mechanical attachment has to hit structure, sealed correctly.

Adhesive mounted guards exist and can work, but adhesives cure to temperature. That is the real reason this is a September job and not a January one.

They go where people and property are, not across the whole roof. Entrances, walkways, garage doors, meters, HVAC, parking.

Pole barns and outbuildings count. That is a lot of roofs in Boone and Winnebago counties.

If you have metal over anything you care about, get it looked at while it is still 70 degrees.

(815) 623-0070 https://superiorroofinginc.com

Property managers, this one costs real money and almost nobody catches it in time.On a flat or low slope roof, the membr...
09/02/2026

Property managers, this one costs real money and almost nobody catches it in time.

On a flat or low slope roof, the membrane is not the expensive part. The insulation under it is. Once water gets through a seam or a failed pe*******on, it does not sit in one place. It spreads sideways through the insulation, and it stays there.

You will not see it from the roof, and not from inside until it has traveled far enough to find a ceiling tile. Meanwhile the R value is gone in that area, the deck below is corroding or rotting, and the wet zone keeps growing every time it rains.

This is why an infrared moisture survey exists.

The physics is simple. Wet insulation holds more heat than dry insulation. On a clear day the sun loads the roof. After sunset the dry areas cool off fast and the wet areas cool slowly, so for a few hours the wet zones glow on a thermal camera. That is why these scans run at night, usually one to three hours after sunset. The standard practice for it is ASTM C1153.

Two things a good scan operator will tell you:

A thermal camera is not a moisture meter. Every hot spot has to be confirmed with a probe or a core sample, because old patches and thickness changes look identical to moisture.

The scan produces a map, not a verdict. You get a percentage of wet area and boundaries marked on the roof. That number decides whether you are looking at targeted repair, a recoat, or a full replacement.

Why this matters for your budget cycle: if 12 percent of your roof is wet, you may be able to cut those sections out and buy years. If you coat over it without checking, you have sealed the water in and bought a warranty claim.

Ask for the moisture map before you approve a number this size. If you want to talk through whether a scan makes sense on your building before budget season, call us.

(815) 623-0070 https://superiorroofinginc.com

Every fall someone asks us to just shingle over the old roof to save money. Fair question. Here is the straight answer.S...
09/01/2026

Every fall someone asks us to just shingle over the old roof to save money. Fair question. Here is the straight answer.

Sometimes it is legal. It is almost never the better deal.

The model code most local building departments here are built on is the International Residential Code. R908.3.1.1 says you cannot install a new layer over the old one when any of these are true:

The roof already has two or more layers of any covering
The existing roof is water soaked or too deteriorated to serve as a base
The existing covering is wood shake, slate, clay, cement or asbestos cement tile
The surface has blisters or buckling that would keep the new layer from lying flat

Worth knowing: Illinois has not adopted a statewide code for repairs to existing single family homes. Reroof rules and permits come from your city, village or county. Belvidere, Rockford and Roscoe each have their own building department. Call yours, or ask your contractor to show you which code your permit is issued under.

Now the part the code does not tell you.

A layover buries evidence. Nobody sees the soft plywood, the rusted flashing, the split boot, or the rot at the eave, because nobody removes anything. Those problems do not stop. They just get a lid on them.

A layover runs hotter. Two layers of asphalt hold heat, and heat is what ages shingles.

A layover shortens the new roof. You are nailing new material into old material, over a base you never inspected.

And when you eventually do tear it off, you pay to remove two layers instead of one.

We will quote a layover if your situation genuinely calls for one. We will also tell you plainly what you are giving up. The savings are real. So is the tradeoff, and you should hear both numbers before you decide.

Ask us for both quotes side by side.

(815) 623-0070 https://superiorroofinginc.com

Walk across the street and look at your roof from the side. Not straight on. From an angle, down the length of it.You wa...
08/31/2026

Walk across the street and look at your roof from the side. Not straight on. From an angle, down the length of it.

You want three straight lines. The ridge at the peak. The eave at the bottom. And a flat plane between them.

If you see a dip, a wave, or a section where the shingles look draped over something instead of lying on it, you are not looking at a shingle problem. You are looking at the deck underneath.

Three things cause it around here.

A slow leak that ran for years. Water got past a flashing or a pipe boot, soaked the plywood, and the deck lost its stiffness and settled between the rafters. The shingles on top can still look fine from the ground.

Weight. Two layers of shingles, plus a February snow load that sat there for six weeks. Wood takes a set and does not come back.

Framing. Older houses in Belvidere and Rockford with additions, converted attics, or undersized rafters for the span.

From the ground, look for:

A hollow in the middle of one slope
A ridge that dips in the center like a hammock
Horizontal ripples across the field of shingles
One section that looks wrinkled while the rest looks flat
A gutter or fascia line that no longer runs true

Now the honest part. A wave in the deck does not automatically mean you need a roof. Some old board sheathing has looked like that since 1958 and will outlive all of us. What it does mean is that a quote written from the driveway is a guess.

We open the deck on every tear-off and tell you what is under there before new material goes down. Sometimes it is four sheets of plywood. Sometimes it is none. You get told either way.

Free inspection, no pressure, no sales pitch on your porch.

(815) 623-0070 https://superiorroofinginc.com

Every rooftop HVAC unit on your building is a hole in your roof. Several holes, actually. And the HVAC contractor who se...
08/29/2026

Every rooftop HVAC unit on your building is a hole in your roof. Several holes, actually. And the HVAC contractor who services it is not inspecting your roof.

Here's what's underneath that unit.

The unit sits on a curb, a raised frame the membrane wraps up and over. That curb has flashing, a termination bar, and sealant at the top edge. Nearby are pe*******ons for refrigerant lines, conduit, and a condensate drain.

Every one is a separate way for water to get in, and all of them hide behind equipment nobody looks past.

Common failures we find:

Sealant at the top of the curb flashing cracked and pulled away. That sealant is a maintenance item with a life of a few years, not a permanent detail.
Condensate line dumping onto the membrane instead of routing to a drain. Constant water in one spot degrades membrane and grows algae.
Refrigerant pe*******ons sealed with roofing cement instead of a pitch pocket or boot. A temporary fix that stayed.
Techs setting tools, panels, or ladders on the membrane. Punctures from a dropped panel corner are small enough to miss.
Missing or damaged walkway pads on the path to the unit.
Rust from the unit streaking the membrane below it.

What to do about it: the next time an HVAC contractor services a unit, ask them to photograph the base of the curb and the surrounding membrane before they leave. Costs nothing. Builds a record. And it puts the tech on notice that somebody is watching where they set their tools.

Then have a roofer look at the curbs on their own schedule. The HVAC company is not responsible for your roof and shouldn't be expected to be.

Managing commercial or multifamily property in the Rockford area? Call (815) 623-0070 or visit https://superiorroofinginc.com/

Superior Roofing Inc. Belvidere, IL. Commercial maintenance programs available.

#815

For anyone managing a commercial building, a strip center, or a multifamily property with a flat roof: the membrane in t...
08/28/2026

For anyone managing a commercial building, a strip center, or a multifamily property with a flat roof: the membrane in the middle of your roof is almost never what fails first.

The seams are.

A TPO, PVC, or EPDM roof is not one continuous sheet. It's rolls of membrane joined together, and every joint is a seam. TPO and PVC seams are heat-welded. EPDM seams are bonded with adhesive or tape. Either way, a seam is a manufactured joint, and manufactured joints are where roofs open up.

What stresses them: thermal cycling all summer, foot traffic, ponded water, and any point where a seam runs into a curb, drain, or wall.

How to walk a seam inspection yourself:

Walk every seam line on the roof, not the field. Follow the joints.
Look for fishmouths. Those are small open puckers along the seam edge where the two sheets have pulled apart. They look like a tiny mouth.
Look for lifted or curled edges, especially at T-joints where three sheets meet. T-joints are the weakest point on the whole roof.
Check seams that terminate at a wall, a curb, or a drain. Terminations fail before mid-run seams do.
Note anywhere a seam sits inside a ponding area. Standing water plus a seam is a countdown.
Photograph and date everything. Build a file per building.

If you manage more than one property, do this the same time every year. A seam that looked fine in 2025 and shows a half-inch fishmouth in 2026 tells you something a single inspection never will.

Seam repairs caught early are a patch and a weld. Caught late, they're a tear-off.

We're certified installers for Firestone TPO, Duro-Last PVC, and GAF commercial systems. If you want a second set of eyes on a building, call (815) 623-0070 or visit https://superiorroofinginc.com/

Superior Roofing Inc. Commercial roofing out of Belvidere since 1996.

#815

If you own an exposed-fastener metal roof, a pole barn, a machine shed, or a metal-roofed addition, this is the maintena...
08/27/2026

If you own an exposed-fastener metal roof, a pole barn, a machine shed, or a metal-roofed addition, this is the maintenance item that gets skipped until it leaks.

Exposed-fastener metal panels are held down by screws you can see from the ground. Each screw has a rubber washer under the head, usually EPDM, and that washer is the entire waterproofing system for that hole.

Metal expands and contracts hard with temperature swings. A long panel moves a real amount between a 90 degree August afternoon and a 10 degree January night. Every cycle works the screw against its hole. Over years, screws walk loose, tilt, or strip out the wood behind them.

Meanwhile the washer sits in direct sun. UV hardens it, it loses its squeeze, it cracks, and it stops sealing.

Neither failure looks dramatic. You get a slow drip in heavy rain, into a barn nobody stands in.

What to look for, best done with binoculars from the ground:

Screw heads sitting proud of the panel instead of flush. Those have backed out.
Screws driven crooked, so the washer is pinched on one side and gapping on the other.
Rust streaks running down from individual fasteners. That's water sitting in the hole.
Screws that are overdriven, where the washer squeezed out sideways past the head. Overdriven is as bad as loose.
Dark staining or moss growth on the panel below a screw line.

The fix is usually simple. Loose screws get replaced with a larger-diameter fastener so new threads bite fresh wood. Failed washers get new screws. That's maintenance, not replacement, and a fraction of the cost of letting the decking go soft.

Boone and Winnebago counties have a lot of metal on outbuildings and farm structures. Most of it hasn't had a fastener check in a decade.

Call (815) 623-0070 or visit https://superiorroofinginc.com/

Superior Roofing Inc. Belvidere, Illinois. Residential and commercial. Since 1996.

#815

There's a piece of metal on your roof that costs about eight dollars and prevents about twenty thousand in damage. Most ...
08/26/2026

There's a piece of metal on your roof that costs about eight dollars and prevents about twenty thousand in damage. Most houses built before the mid-2000s don't have one.

It's called kick-out flashing. Here's the spot it belongs.

Find a place where a roof slope runs downhill and dead-ends into a vertical wall. A garage roof meeting the side of the house, a dormer wall, a porch roof tying into the second story. Water runs down that roof, hits the wall, and travels along the joint toward the gutter.

At the very bottom of that joint, right where the roof edge stops, the water has to get kicked out and into the gutter. Kick-out flashing is a small bent piece of metal that does exactly that.

Without it, the water doesn't jump the gap. It runs straight down behind the siding.

You won't see it. Not for years. It soaks the sheathing, rots the framing inside the wall cavity, and grows mold where nobody looks. By the time it shows as an interior stain or soft siding, you're paying a framing carpenter, not a roofer.

How to check yours:

Walk the outside of your house and find every place a roof edge meets a wall.
Look at the very bottom corner of that joint, right above the gutter.
You should see a small metal flap angled out and away from the wall, aimed into the gutter.
If you see only siding, caulk, or a gap, you don't have one.
Press on the siding in the two feet directly below that spot. Softness or give means water has already been getting in.

Northern Illinois has had a wet, storm-heavy 2026. Every rain event tested this joint on your house. If the flashing isn't there, every one went behind the wall.

Not sure what you're looking at? Send us a photo or call (815) 623-0070. Free inspection. https://superiorroofinginc.com/

Superior Roofing Inc. Belvidere, IL. GAF Master Elite contractor.

#815

Everybody asks what shingles they're getting. Almost nobody asks what goes underneath them. That layer is called underla...
08/25/2026

Everybody asks what shingles they're getting. Almost nobody asks what goes underneath them. That layer is called underlayment, and in northern Illinois it decides whether a small problem stays small.

Three types, and they are not interchangeable.

Felt paper. The old standard, asphalt-saturated, sold as 15 pound or 30 pound. It works. It also tears in wind, wrinkles when wet, and is slick to walk on. If your roof gets stripped Tuesday and it rains Tuesday night before the shingles go on, felt is the layer between you and your drywall.

Synthetic underlayment. Woven polypropylene or polyethylene. Lighter, much stronger, doesn't wrinkle, holds up if left exposed a few days on a longer job. Costs more per square. It's what most quality installers use now.

Ice and water shield. This is the one that matters most here. It's a self-adhering rubberized membrane that seals around nails driven through it. It belongs along the eaves, in every valley, and around every pe*******on. When an ice dam backs water up under your shingles in February, this is the only layer designed to stop it.

What to ask before you sign anything:

Which underlayment, by brand and product name, not just "synthetic."
How far up from the eave does the ice and water shield run? A good answer accounts for your roof pitch and your overhang.
Every valley, or only the eaves?
Around the chimney, plumbing stacks, and skylights?
Is it listed on the written estimate? If a contractor says "yes, of course" but it isn't on paper, get it on paper.

An estimate that names the shingle and stays vague about everything under it is telling you where the corners are getting cut.

Want a straight answer about your roof? Call (815) 623-0070 or visit https://superiorroofinginc.com/

Superior Roofing Inc. Belvidere, Illinois. Serving Boone and Winnebago counties since 1996.

#815

Rockford's normal last 90 degree day is August 26. We're running past that this week, and hot weather is the best time t...
08/24/2026

Rockford's normal last 90 degree day is August 26. We're running past that this week, and hot weather is the best time to find out whether your attic is actually breathing.

Here's a problem we find more than you'd think. A ridge vent gets installed along the peak, looks right from the driveway, and does nothing. Two ways that happens.

The slot never got cut. A ridge vent needs an opening cut through the roof decking on both sides of the peak. If a crew nailed the vent down over solid plywood, you paid for a plastic decoration.

Or the intake is blocked. Ridge vents are exhaust only. They work when air enters low through the soffits and leaves high at the peak. Insulation shoved into the eaves, painted-shut soffit panels, or solid vinyl soffit chokes the whole thing. Exhaust with no intake just pulls conditioned air out of your house.

Check it yourself. No ladder needed.

Go into the attic on a hot afternoon. Oven heat and stale air means nothing is moving.
Look up at the peak from inside. A thin line of daylight along the ridge means the slot got cut. Solid wood means it didn't.
Stand outside under the eaves. You want vents or perforated panels, not solid soffit.
Back in the attic, look where the roof meets the outside walls. Insulation packed tight to the decking means your intake is buried.
Look for rusty nail tips poking through the decking. That rust is condensation. The attic is holding moisture.

A hot, wet attic cooks shingles from underneath and shortens their life. It also builds the ice dams you'll be fighting in January. Opening up intake is usually a cheap fix. Replacing a roof five years early is not.

Questions about your attic? Call (815) 623-0070 or visit https://superiorroofinginc.com/

Superior Roofing Inc. Family owned in Belvidere since 1996. GAF Master Elite contractor.

#815

Address

515 Pearl Street
Belvidere, IL
61008

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

Telephone

+18159759629

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