Full-System Roofing
New Roof Installation in Buffalo, NY
Complete new roof installation in Buffalo, NY for new construction, additions, and re-decks, covering the full system from deck to ridge: sheathing, ice and water barrier, underlayment, flashing, matched CertainTeed or Owens Corning materials, and code-balanced ventilation.
- 01Tear-off to bare deck
- 02Re-deck where it fails
- 03Ice and water barrier
- 04Synthetic underlayment
New Roof Installation in Buffalo, NY
Mann Roofing and Remodeling installs complete new roof systems across Buffalo, NY, for new construction, home additions, and full re-decks. Every install includes the deck, ice and water barrier, underlayment, flashing, matched CertainTeed or Owens Corning shingles or metal, and balanced ventilation, built to New York code from the sheathing up.
From bare deck to ridge cap, in the only order that works
- 01
The deck comes first
The roof deck is the foundation, so every job starts there. On a re-deck or tear-off, the old covering comes off down to the sheathing, and the deck is inspected board by board for rot, delamination, and soft spots before anything new goes down. Damaged or non-compliant sheathing is replaced with code-thickness plywood or OSB, then fastened with 8d ring-shank nails at roughly 6 inches on center along the edges and 12 inches in the field, per common roof sheathing code guidance. A sound, properly nailed deck is what every warranty and every layer above depends on.
- 02
Seal the eaves: ice and water barrier
Buffalo sees roughly 85 to 95 inches of snow in an average winter, according to the National Weather Service, and the snowbelt south of the city runs far higher. In November 2022, the airport recorded about 36 inches while Orchard Park took around 82. That climate is why New York follows the International Residential Code ice barrier rule. Section R905.1.2 requires a self-adhering membrane running from the eave edge to a point at least 24 inches inside the exterior wall line, which protects the most vulnerable part of the roof from ice dams and wind-driven melt. Mann extends that barrier through valleys and around every penetration.
- 03
Underlayment and all-new flashing
Above the barrier, a synthetic underlayment covers the full field as a secondary water plane, and new metal is installed at every transition: drip edge at the eaves and rakes, step flashing along walls, counter flashing at chimneys, and boots at vents and pipes. Reusing old, brittle flashing is one of the most common causes of leaks on an otherwise new roof, so these are replaced as part of the system rather than salvaged. Starter strip at the perimeter and a matched ridge cap complete the shingle package and lock down the edges against uplift.
- 04
Ventilation, balanced by the numbers
Ventilation is engineered into the roof, not added as an afterthought. The National Roofing Contractors Association recommends a balanced system, with intake at the soffits or eaves in the lower third of the attic and exhaust within about three feet of the ridge, and it advises that intake area equal or exceed exhaust area. Codes allow one square foot of net free vent area per 150 square feet of attic, reduced to one per 300 when venting is balanced and a vapor retarder is present. Getting this right matters: the NRCA notes that proper attic ventilation can extend a roof's service life by up to 25 percent.
- 05
Matched systems to the ridge cap
Mann installs CertainTeed and Owens Corning systems exclusively, using matched components from the same manufacturer so the roof qualifies for a full system warranty rather than shingle-only coverage. CertainTeed's SureStart protection, for example, covers material and labor without proration in its early years, and its upgraded programs extend that period only when the roof is installed as a complete, matched system by a certified contractor. Architectural asphalt shingles typically last 22 to 25 years, while a standing-seam metal roof runs 40 to 70 years according to the Metal Roofing Alliance, so material choice sets the long-term math.
up to 25%
Proper attic ventilation can extend a roof's life by up to 25 percent.
Source: National Roofing Contractors Associationup to 40%
Local climate can change a roof's real-world lifespan by up to 40 percent, which is why a harsh-winter market like Buffalo is hard on shingles.
National Roofing Contractors Association40 to 70 years
Metal roofs commonly last 40 to 70 years, and standing seam systems shed heavy snow well.
Metal Roofing AllianceOne assembly, built to code and tied into the roofline
A new roof installation replaces or builds the entire roofing assembly, not just the shingles you see from the street. On new construction, additions, and re-decks, Mann Roofing and Remodeling builds every layer in sequence: the sheathing, a self-adhering ice and water barrier, synthetic underlayment, drip edge, starter strip, field shingles or metal panels, ridge cap, step and counter flashing, and a balanced ventilation path. Each component is sized and fastened to work with the ones above and below it, which is what separates a roof that lasts its full service life from one that fails early at the seams.
“A self-adhering polymer-modified bitumen sheet shall be used in lieu of normal underlayment and extend from the lowest edges of all roof surfaces to a point not less than 24 inches inside the exterior wall line of the building.”
On new construction and additions, the work is as much about geometry as materials. A new addition has to tie into the existing roofline with valleys, saddles, and flashing that shed water cleanly, and the new plane usually has to match the pitch, exposure, and appearance of the roof already on the house. Mann coordinates with builders and general contractors on deck timing, ventilation layout, and inspection sign-offs so the roof is dried in on schedule and passes municipal inspection the first time.
Excellence is not just a goal, it is our guarantee.
What a Mann new roof includes
Every new roof is registered for its manufacturer warranty and backed by Mann's workmanship. For homeowners spreading the cost of new construction or a full replacement, financing through HEARTH is available with 0% interest for 12 months and no payments during that period. From the first measurement to the final magnetic nail sweep of the yard, the crew protects landscaping, stages materials to limit disruption, and hauls away all tear-off debris.
- Service area
- Buffalo, NY and Western New York
- In business since
- 2007
- Manufacturer systems
- CertainTeed and Owens Corning
- Architectural shingle life
- 22 to 25 years (NRCA/NAHB)
- Metal roof life
- 40 to 70 years (Metal Roofing Alliance)
- Ice barrier code
- 24 in inside exterior wall line (IRC R905.1.2)
- Financing
- 0% interest, 12 months, no payments (HEARTH)
- Phone
- (716) 500-6266
- 01Complete tear-off down to the roof deck with board-by-board sheathing inspection
- 02Re-decking with code-thickness plywood or OSB where the deck is rotted or non-compliant
- 03Self-adhering ice and water barrier at eaves, valleys, and penetrations
- 04Synthetic underlayment across the full roof field
- 05New drip edge, starter strip, step flashing, and counter flashing
- 06Balanced intake and exhaust attic ventilation
- 07CertainTeed or Owens Corning architectural shingles or standing-seam metal
- 08Matched ridge cap and manufacturer system warranty registration
- 09Full cleanup with magnetic nail sweep and debris haul-away
New roof installation questions
Do you install roofs on new construction and additions?
Yes. Mann Roofing and Remodeling installs complete roof systems on new-construction homes and new additions across Buffalo and Western New York. We coordinate with your builder on deck timing, tie the new roof cleanly into any existing roofline, and build every layer to New York code so the job passes inspection.
What is a re-deck, and do I need one?
A re-deck replaces the roof sheathing, the wood layer the shingles fasten to. You need one when the deck is rotted, delaminated, or too thin to hold fasteners. We inspect the deck board by board after tear-off and replace only what fails, using code-thickness plywood or OSB.
How much attic ventilation does a new roof need?
Code allows one square foot of net free vent area per 150 square feet of attic, or per 300 when venting is balanced and a vapor retarder is present. The NRCA recommends intake at the soffits and exhaust near the ridge, with intake area equal to or greater than exhaust.
Why is an ice and water barrier required in Buffalo?
Buffalo averages roughly 85 to 95 inches of snow a year, so ice dams are a real risk. New York follows IRC Section R905.1.2, which requires a self-adhering barrier from the eave to at least 24 inches inside the exterior wall line to stop backed-up meltwater from leaking in.
How long will a new asphalt roof last?
Architectural asphalt shingles generally last 22 to 25 years, and three-tab shingles closer to 20, according to NRCA and NAHB figures. A metal roof lasts 40 to 70 years. Ventilation matters too: the NRCA notes proper attic airflow can extend roof life by up to 25 percent.
Do you offer financing for a new roof?
Yes. Mann Roofing and Remodeling offers financing through HEARTH with 0% interest for 12 months and no payments during that period, which helps homeowners manage the cost of new construction or a full replacement. Call (716) 500-6266 to review options during your on-site estimate.
Plan your new roof from the deck up
To plan a new roof for a build, an addition, or a re-deck in Buffalo or Western New York, call Mann Roofing and Remodeling at (716) 500-6266 for an on-site assessment of the deck, ventilation, and the right system for the home.