Metal Roofing in Franklin County, PA: What Homeowners Near Chambersburg and Waynesboro Should Know

By Appalachian Exteriors

Franklin County has its own weather patterns, building stock, and property landscape. If you’re considering metal roofing in Chambersburg, metal roofing in Waynesboro, or metal roofing in Greencastle, here’s what to think through before you make a decision.

Franklin County sits in the Cumberland Valley between South Mountain and the Appalachian ridgeline, and the weather reflects it. Winters bring significant snowfall and hard freeze-thaw cycles. Summer storms roll through the valley with high winds. The shoulder seasons are wet. These are exactly the conditions that make metal roofing a strong choice for homeowners throughout the region — and why so many farm properties in the county have had steel on their barns for generations.

What’s changed in recent years is that more residential homeowners in Chambersburg, Waynesboro, Greencastle, Mercersburg, and Mont Alto are choosing metal roofing for their homes — not just their outbuildings. The reasons are practical: longer lifespan, less maintenance, and better performance in the specific weather conditions Franklin County delivers year after year.

Why Franklin County weather favors metal roofing

Asphalt shingles perform adequately in mild climates. Franklin County is not a mild climate. The combination of factors here accelerates shingle wear faster than manufacturers’ warranties often reflect:

• Freeze-thaw cycles: The Cumberland Valley gets repeated freeze-thaw events through winter and early spring. Each cycle stresses asphalt shingles — expanding and contracting until they crack, curl, and lose granules. Steel panels are not affected by temperature cycling the same way.
• Snow load: Waynesboro and the communities closer to the South Mountain ridge regularly see heavier snowfall than the valley floor. Metal roofs shed snow significantly faster than shingles, reducing structural load and eliminating the ice dam formation that damages gutters, fascia, and attic insulation.
• Wind events: The valley acts as a funnel for storm systems moving up from the south. High-wind events that lift and crack individual shingles are a recurring problem for Franklin County homeowners. A properly installed steel roof holds as a system — there are no individual pieces to lift.
• Summer humidity: Hot, humid summers accelerate moss and algae growth on shingles, particularly on north-facing slopes and areas with tree canopy. Steel panels don’t support moss or algae growth.

Metal roofing across Franklin County communities

Chambersburg

As the county seat and largest community, Chambersburg has a wide range of housing stock — older homes in the borough, newer construction in the surrounding townships, and a significant number of agricultural properties on the outskirts. Metal roofing works across all of them. For older homes with complex rooflines and multiple penetrations, the flashing and detailing work matters as much as the panels themselves. For newer builds, metal is increasingly being specified from the start.

Waynesboro

Waynesboro sits closer to the South Mountain ridge and tends to see more precipitation and wind than the valley floor. It also has a strong tradition of agricultural and industrial property, and a lot of older residential housing stock that is reaching the end of its shingle life. Metal roofing is a particularly good fit here for homeowners who want to replace once and not think about their roof for the next 40 years.

Greencastle

Greencastle and the surrounding townships have a mix of residential and agricultural properties, with a lot of farm acreage in the flatlands between Greencastle and the Maryland line. We’ve seen growing interest in metal roofing among Greencastle-area homeowners — partly driven by the agricultural community where steel has always been the standard, and partly by homeowners looking at long-term value over the short-term cost savings of shingles.

Mercersburg and Mont Alto

Both communities have strong agricultural and rural character. Mercersburg in particular has significant farm property west toward the Maryland border, where pole buildings and barn structures are common. Mont Alto sits at the foot of the ridge with properties that deal with heavier weather exposure than the valley floor. Both areas are well-suited to metal roofing and see less local contractor competition than Chambersburg and Waynesboro.

Metal roofing for Franklin County farm properties

The agricultural community in Franklin County has used steel roofing on barns and farm structures for decades. The logic is simple: a barn roof that lasts 50 years with no maintenance is worth significantly more over time than a cheaper option that needs replacing in 20. The same logic applies to residential homes — the upfront cost difference looks different when you factor in one metal roof versus two shingle replacements over the same period.

For farm property owners considering a re-roof on outbuildings, equipment storage, or livestock facilities, metal is almost always the right answer. We work on agricultural structures throughout Franklin County and understand the specific requirements — large panel runs, proper ventilation details, working around operating farm schedules.

What metal roofing costs in Franklin County

Most residential metal roof installations in Franklin County run between $550 and $900 per roofing square (one roofing square equals 100 square feet of actual roof surface — not floor space). A typical home lands between $12,000 and $25,000 depending on size, slope, and complexity.

The variables that move the number up or down:

• Roof size: Measured in squares — bigger roof, higher cost
• Pitch and slope: Steeper roofs take more time and carry a higher labor cost
• Complexity: Dormers, valleys, multiple peaks, and penetrations add time and material
• Decking condition: If the wood underneath is soft or damaged, it needs repair before panels go on

Choosing a metal roofing contractor in Franklin County

A few things worth asking any contractor before signing:

• Who is actually doing the installation? Many contractors in the Chambersburg area send crews while the owner manages from a distance. At Appalachian Exteriors, the owner is personally on site as the primary installer on every full replacement. The person who gives your estimate is the same person on your roof.
• What panels do they use? Not all steel panels are equivalent. Ask about the gauge, the coating system, and the manufacturer warranty. We use commercial-grade steel panels with lifetime material warranties.
• Do they carry a workmanship warranty? Material warranties cover the panels. A workmanship warranty covers how they were installed. We back every full replacement with both.
• Are they licensed in Pennsylvania? Pennsylvania requires a Home Improvement Contractor (HIC) license for residential work. Ask to see it.

About Appalachian Exteriors

We are a family-owned metal roofing and exterior contractor based in South Central Pennsylvania. Franklin County is a core part of our service area — we work throughout Chambersburg, Waynesboro, Greencastle, Mercersburg, Mont Alto, and the surrounding townships year-round. We specialize in metal and steel roofing for residential and agricultural properties, with steel siding, soffit, and fascia rounding out our exterior services.

We are PA Home Improvement Contractor licensed, and every full replacement includes a workmanship warranty in addition to the manufacturer’s material warranty.