Modified Bitumen Roofing in Hudson, WI
A modified bitumen roof is an asphalt-based roof laid in plies over a flat or low-slope deck, and Hudson Roofing Pros installs it on porches, garages and low-slope sections of Hudson homes. It typically lasts about 20 years.
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When Is a Modified Bitumen Roof Right for a Hudson Home?
A modified bitumen roof is right for a Hudson home when a porch, garage, addition or other low-slope section has worn out and you want an asphalt-based roof with a typical life of about 20 years. It is built in plies, one sheet laid over another, so a two-ply or three-ply roof gives the deck more than one layer of protection.
Low-slope roofs in Hudson carry snow and meltwater for long stretches of the winter, and western Wisconsin gets roughly 45 to 50 inches of snow a year. That standing water is what finds a worn seam or a lifted edge, so the plies, laps and flashing all have to be sound.
Modified bitumen is one of the systems we install as part of flat roof replacement. For a covered porch where the framing itself needs work, our porch and patio roofing service covers the whole structure.
How long it lasts
About 20 years
Weather, material quality and upkeep decide whether a modified bitumen roof falls short of that or goes past it.
How Does Modified Bitumen Compare With Other Asphalt Flat Roofs?
Modified bitumen sits between rolled roofing and a built-up roof among the asphalt-based flat roofs, on both typical life and cost. Each of the three suits a different kind of roof.
Rolled Roofing
Rolled roofing is a single asphalt sheet for sheds and outbuildings, at $2.00 to $5.50 per sq ft nationally.
Modified Bitumen
Asphalt-based sheets laid in plies, typically lasting about 20 years, at $4 to $8 per sq ft nationally.
Built-Up Roofing
A built-up roof layers asphalt and felt under gravel, typically lasting about 30 years, at $4 to $10 per sq ft nationally.
Not sure which asphalt flat roof suits your porch or garage?
Tell us what the roof covers and what is on it now, and we will go through the options.
How We Install a Modified Bitumen Roof in Hudson
We install a modified bitumen roof in Hudson by tearing off what has to come off, repairing the deck, laying the plies and flashing the edges and walls to the manufacturer's instructions. Garrett Olson oversees every project, and the same crew does the work from start to cleanup.
- 1
Inspect the Roof
We check the old roof, the deck and the flashing where the low-slope roof meets the house.
- 2
Tear Off and Repair the Deck
Old roofing comes off where it has to, and soft or rotted decking is replaced.
- 3
Lay the Plies
The modified bitumen sheets go down in plies, each lapped over the last, to the maker's instructions.
- 4
Flash Walls and Edges
We flash where the roof meets the wall of the house, the edges and any openings.
- 5
Clean Up
We clear the debris and sweep for nails before we leave.
What Does a Modified Bitumen Roof Cost in Hudson?
A modified bitumen roof costs $4 to $8 per square foot installed as a national range, not a quote. No published figure exists for Hudson itself, and the only Wisconsin figures are for large commercial roofs with new insulation, which run far higher.
| Modified bitumen roof | Where | Installed price |
|---|---|---|
| Modified bitumen, typical flat roof | National | $4 to $8 per sq ft |
| SBS modified bitumen, 2-ply, with new insulation | Wisconsin, large low-slope roof | $19.50 per sq ft |
| SBS modified bitumen, 3-ply, with new insulation | Wisconsin, large low-slope roof | $22.90 per sq ft |
| APP modified bitumen, 2-ply, with new insulation | Wisconsin, large low-slope roof | $18.95 per sq ft |
| APP modified bitumen, 3-ply, with new insulation | Wisconsin, large low-slope roof | $22.05 per sq ft |
Your price depends on the roof's size, the number of plies, how much comes off and the state of the deck. We price your roof in writing after seeing it.
Want a written price for a new modified bitumen roof?
We measure the roof, check the deck and put the price on paper.
What Wisconsin Rules Apply to a Modified Bitumen Roof in Hudson?
Wisconsin's rules for a modified bitumen roof on a Hudson home require it to be installed to the manufacturer's instructions or a recognized national standard, and limit how many layers the roof may carry. A new roof may not go over a roof that already has two or more layers, or over one that is water-soaked or too deteriorated to be a sound base.
In the City of Hudson, new or replacement roofing needs no building permit when there are no structural changes or repairs, while structural work does. For other towns and villages we confirm the permit rules with your local building inspector before work starts.
Who Can Install a Modified Bitumen Roof on a Hudson Home?
A contractor holding Wisconsin's Dwelling Contractor certification, with a certified Dwelling Contractor Qualifier, can install a Modified Bitumen Roof on a Hudson Home, because that is the credential the state requires of anyone who pulls a building permit for work on a one- or two-family home, and Wisconsin has no roofing-specific license. Hudson Roofing Pros does this work, and when you book with us or anyone else, ask for proof of the credential and of insurance.
You can check a contractor's credential on the state's credential lookup.
Modified Bitumen Roof FAQs
How Long Does a Modified Bitumen Roof Last?
A modified bitumen roof typically lasts about 20 years. Weather, the quality of the material and upkeep decide whether it falls short of that or lasts longer.
How Much Does a Modified Bitumen Roof Cost?
A modified bitumen roof costs $4 to $8 per square foot installed, as a national range, not a quote. Tear-off and deck repairs add to that.
Should a Porch Get Modified Bitumen or Rolled Roofing?
A porch roof can take either, and the choice comes down to budget and what the roof covers: modified bitumen is laid in plies and runs $4 to $8 per sq ft nationally, while rolled roofing is a single sheet at $2.00 to $5.50. We go through both after seeing the roof.
Can a Modified Bitumen Roof Be Repaired?
Yes, a modified bitumen roof can be repaired by cutting out the damaged area and patching it with new plies. Our flat roof repair service handles leaks on these roofs.
Do I Need a Permit for a Modified Bitumen Roof in Hudson?
No permit is needed for a modified bitumen roof on a City of Hudson home when there are no structural changes or repairs. Elsewhere we confirm the rules with the local building inspector.
Get a modified bitumen roof estimate
Send the form or call us with your address and what the low-slope roof covers, and we will arrange a time to inspect it and price a new modified bitumen roof in writing.
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