The situations described here are composites drawn from the types of jobs and decisions we encounter regularly. Names and specific figures are illustrative.
A homeowner near Buckingham Pond had a 1950s Cape Cod with a worn asphalt shingle roof, two front dormers, a brick chimney and a nearly flat porch roof off the kitchen that had leaked twice. Choosing roofing materials in Albany, NY for this house came down to one question: one material for the whole house, or a different material where the roof shape called for it. With three quotes in hand in late October, the homeowner was leaning toward standing seam metal everywhere because a neighbor two doors down had just put one on. The numbers that mattered were the slope of each section, the layers of old shingles on the deck, and where snow would land when it slid off.
Where the decision started: the neighbor’s roof
The neighbor’s house was a simple two-story colonial: one long ridge, two big rectangular slopes, no dormers, and a chimney on the gable end. Standing seam metal suits a roof like that. The panels run in long unbroken lengths from ridge to eave, and there are few places where the metal has to be cut, bent and flashed around something.
The Cape was a different shape. Two dormers meant four short valleys where the dormer roofs meet the main roof, plus sidewall flashing on both sides of each dormer. The chimney sat in the middle of the front slope. Every one of those spots is where a metal roof takes extra labor, extra trim and extra skill, and where a shortcut shows up as a leak a few winters later. The first mistake on the table was choosing a material because it looked right on a house with a different roof.
What the lifespan chart said and what it left out
The homeowner had printed a life-expectancy chart. The figures on it come from InterNACHI, the home inspectors’ association, which lists architectural asphalt shingles at about 30 years, 3-tab shingles at about 20 years and metal roofing at 40 to 80 years[3]. The same chart says its numbers assume regular maintenance and normal wear and should be used as guidelines only, not as guarantees[3].
That caveat is the part that gets dropped. A chart cannot see a dormer valley, a chimney in the middle of a slope, or an attic that runs damp every February. Two roofs of the same material on the same street can age very differently because of what is going on underneath and around them. Comparing materials by the top number on a chart, without asking how that number holds up on your particular roof, is the second mistake we hear most.
If you want the broader side-by-side, our post on whether metal or shingle is the better fit for an Albany house covers the general trade-offs. This job came down to the specific roof.
Measuring every section, not just the main roof
The main roof on the Cape was about an 8-in-12 pitch. The dormer roofs were steeper. The porch roof was the problem: it measured about 2.5 inches of rise per foot. The Residential Code of New York State allows asphalt shingles only on slopes of 2-in-12 or steeper, and on slopes from 2-in-12 up to 4-in-12 it requires a double layer of underlayment[1]. Standing seam metal roof systems are allowed down to one-quarter inch per foot[1].
So the porch was legal for shingles, but only barely, and only with the extra underlayment. On a slope that shallow, water moves slowly, snow sits longer, and any wind-driven rain has an easier time working up under the shingle laps. The two kitchen-ceiling leaks lined up with that. The previous roofer had used standard single underlayment on the porch and run the main-roof shingles straight down onto it.
| Roof section | Measured slope | What the code allows |
|---|---|---|
| Main roof (front and back) | About 8-in-12 | Shingles or metal; ice barrier must also reach 36 inches up the slope from the eave at 8-in-12 and steeper[1] |
| Dormer roofs | About 10-in-12 | Shingles or metal |
| Back porch roof | About 2.5-in-12 | Shingles only with double underlayment; standing seam allowed to 1/4-in-12[1] |
Laid out that way, the porch was the one section where the material choice decided whether the roof would leak, and nobody had asked about it.
The old layers changed the metal-over-shingles idea
One of the quotes offered to install metal panels directly over the existing shingles to save the tear-off cost. New York’s code does allow some recover installations, and complete standing seam systems that carry the roof load directly to the structure do not always require removing the old roofing[1]. But the code does not allow a recover where the existing roof is water-soaked or deteriorated, or where there are already two or more layers of roofing[1].
A look at the rake edge showed two layers of shingles on the main roof. That ended the recover idea for every material, not just metal. It also meant the deck had not been seen in at least two roof cycles. When roof replacement means taking everything down to the deck[1], you find out about soft plywood before the new material goes on instead of after. The full tear-off roof replacement was going to happen regardless, so the material decision could be made on its own merits.
Where the snow would go
The homeowner had not thought about this part at all. Metal sheds snow. Shingles hold it. On the Cape, the front slope drained straight over the front steps and the walk to the driveway. An engineering study published by the American Society of Civil Engineers puts it plainly: sliding snow and ice can damage property, kill people and overload lower roofs, and in valleys moving snow can roll standing seams onto their side and break the seals within them[4].
That does not rule out metal on the main roof. It means a metal main roof on this house needed snow guards above the entry and probably above the dormer valleys, added to the price, and installed with clamps that do not punch through the panels. None of the three quotes had included them. Leaving snow management out of a metal quote is one of the quieter mistakes, because nothing goes wrong until the first big thaw after a heavy storm.
The color and energy question
One salesperson had pitched a light-colored reflective metal as a way to lower energy bills. ENERGY STAR says cool roofs work best in hot, sunny climates like the Southern U.S., on buildings with low levels of roof insulation[5]. An Albany Cape with an insulated attic floor is not that building. The heating bill in January will not change much because of roof color.
What does change how a roof ages in this climate is attic ventilation. The state code sets the minimum net free vent area at 1/150 of the vented attic space, or 1/300 when specific conditions are met, including vents placed high near the ridge[2]. The Cape had two small gable vents and painted-over soffits. Whatever material went on top, the plan needed continuous intake at the soffits and a ridge vent. We wrote more about that in our post on how ridge venting sets a roof’s real lifespan.
“Shingles are allowed down to a 2-in-12 slope, but between 2 and 4 the code calls for a doubled underlayment. Standing seam is allowed down to a quarter inch per foot. So the low porch roof gets measured on its own before anybody picks one material for the whole house.” [1]
Paul Sandul, Owner, Elite Contracting
What got chosen and why
With the slopes, layers, snow path and vents on paper, the options were easier to compare. The prices below are illustrative for this composite job; the lifespan column is the chart range, not a promise.
| Option | Illustrative price | Chart lifespan | What it meant on this house |
|---|---|---|---|
| Standing seam on the whole roof | $31,500 plus about $1,400 for snow guards | Metal 40 to 80 years[3] | Most labor at the dormer valleys and chimney; snow over the front steps |
| Architectural shingles on the whole roof | $15,800 | About 30 years[3] | Porch stays at the code minimum with double underlayment |
| Shingles on main roof, standing seam on porch | $18,900 | Shingles about 30 years, metal 40 to 80[3] | Each section gets a material suited to its slope |
The homeowner went with the third option. Architectural shingles on the main roof and dormers kept the complicated flashing work in a material that handles it well and kept the budget in range. Standing seam on the porch put the right material on the one section where slope was the real issue. Ice barrier went in at the eaves of the main roof, extending at least 24 inches inside the exterior wall line and 36 inches up the slope, as the code requires on 8-in-12 and steeper roofs in areas with a history of ice dams[1]. Soffit intake was opened up and a ridge vent was added. Two sheets of soft decking near the chimney were replaced after tear-off.
There was a trade-off. The main roof will likely need replacing again in a few decades, sooner than a metal roof would have. The homeowner accepted that in exchange for a price that did not require financing and a roof without snow sliding onto the front steps. A different house on the same street, one with a simple gable and long runs, might reasonably go the other way. Our metal roof replacement work tends to make the most sense on exactly those simpler roofs.
What people usually ask at this point
Most homeowners ask whether mixing two materials on one house looks odd. On a porch, a shed roof or a low addition, it usually reads as intentional, especially when the metal color is picked to match the shingle tone. The front of the house still looks like one roof.
The next question is usually about historic districts. Homeowners in Albany’s locally designated historic districts need a Certificate of Appropriateness for exterior alterations, and the city’s application form says the use of non-historically appropriate materials goes to the Historic Resources Commission for review and a public hearing[6]. The form also lists replacement of non-original material as minor work that staff may review[6]. If your house is inside one of those districts, the material decision includes a permit step that the neighbor outside the district never had to deal with.
People also ask whether metal is always the long-term winner. Not on every roof. On a simple roof with long runs, metal can come out ahead over time. On a roof full of dormers, valleys and penetrations, the extra trim, labor and snow management can eat into that advantage. Our residential roofing page lays out the kinds of homes and roofs we usually work on around the Capital Region.
What to take from this
The mistakes on this job were not unusual. Picking a material from a neighbor’s house or a chart. Skipping the slope of the small sections. Leaving out snow guards. Expecting color to change a heating bill. Not checking how many layers are already on the deck. Each one is easy to fix before a contract is signed and expensive to fix after.
If you are comparing roofing materials in Albany, NY this fall, it helps to ask each contractor the same few things: the slope of every section, the number of existing layers, where snow will land, and what the ventilation plan is. When those answers are in writing, the quotes start to compare like for like. If you want a second set of eyes on a quote you already have, you can reach out to us here.
Sources
- Chapter 9 Roof Assemblies (Sections R905.1.2, R905.2.2, R905.10.2, R908.3, R908.3.1, R908.3.1.1), 2020 Residential Code of New York State, UpCodes
- Chapter 8 Roof-Ceiling Construction (Section R806.2 Minimum Vent Area), 2020 Residential Code of New York State, UpCodes
- InterNACHI’s Standard Estimated Life Expectancy Chart for Homes, International Association of Certified Home Inspectors
- Snow Guards for Metal Roofs (Tobiasson, Buska and Greatorex), IIBEC, reprinted from the ASCE 8th International Conference on Cold Regions Engineering, 1996
- Cool Roofs, ENERGY STAR, U.S. Environmental Protection Agency
- Certificate of Appropriateness Application Form, City of Albany Department of Planning and Development