Roof Replacement in Shirley, PA

Shirley has 1,155 homes, and half of them were standing by 1986. The rules below decide how much of the old roof has to come off and what goes under the new one.

New Roofing Costs connects homeowners with independent local roofing contractors. We do not perform roofing work.

Call (833) 781-1806 Replacement and new roofs only · homeowners

This number connects homeowners who are planning a new roof or a full roof replacement with independent local roofing contractors. It is not for leak repairs or patch jobs. The call must come from the homeowner who decides on the roof. Calls may be recorded.

A Pennsylvania stone-and-brick house with a new shingle roof

The rules for a reroof in Shirley

Permit

Ask Shirley first

Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). The township code office can say what Shirley requires.

Source: 34 Pa. Code § 403.1(b)

Layers

One old layer can stay; two cannot

On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 46% of Shirley’s homes were built before 1980, so count the layers before comparing quotes.

Source: IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes)

Ice barrier

Shirley’s climate table decides

Whether an eave membrane is a code item depends on the climate table the municipality filled in when it adopted the code (IRC R905.1.2, Table R301.2). Shirley’s answer is with the township code office.

Source: IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes)

Rules as read on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Pennsylvania.

Homes and roofs in Shirley

Of 971 occupied homes in Shirley, 835 (86%) are owner-occupied. By year built, 19% before 1940, 33% before 1960, 46% before 1980; 26% went up in 2000 or later. (ACS 2020–2024.)

By building type: 69% detached houses, 27% manufactured homes.

27% of homes in Shirley are manufactured homes (315). A roof on a manufactured home is its own kind of job; tell the person on the line that it is one.

Of the 12 Huntingdon County municipalities on this site, Shirley has the 11th largest share of homes built before 1980: 46%, against a county range of 42% to 84%.

ZIP codes: 17066 · 17260

Shirley and the towns around it

Place	Median built	Before 1980	Owners	Row, twin	Hail days
Shirley	1986	46%	86%	0%	1
Mount Union	1946	84%	52%	5%	1
Wayne Township, Mifflin County	1974	62%	80%	0%	1
Cromwell	1986	42%	86%	0%	2
Cass Township, Huntingdon County	1975	58%	84%	2%	4
Bratton	1953	78%	85%	1%	4

Median built: median year the homes were built. Before 1980: share of homes built then. Owners: share of homes that are owner-occupied. Row, twin: share of homes that are rowhouses, twins or townhouses. Census ACS 2020–2024. Hail days: days with hail of 1 inch or larger within 10 miles, 2006–2025, NOAA Storm Prediction Center.

Storm record around Shirley

NOAA’s storm reports show 1 day since 2006 with hail of at least 1 inch inside a 10-mile circle around Shirley, topping out at 1.5 in on August 4, 2023.

That is fewer than most places in the state on this site (median 12 days).

Federal major-disaster declarations for storms in Huntingdon County since 2006: 4, most recently DR-4618, Remnants of Hurricane Ida, declared September 2021. (OpenFEMA.)

A report says hail fell near Shirley, not that it damaged a roof. When wind or hail damage means a new roof.

What goes on the roof next

HUD’s useful-life figures are for planning; a warranty is a separate promise. For Shirley’s houses: More in the guides to shingles, metal, slate and flat roofs.

Material	HUD useful life	Fits a house like	Watch for
Asphalt shingles	20 years	Most pitched roofs; 69% of homes here are detached	Wind class set by the design wind speed (IRC Table R905.2.4.1)
Metal (standing seam, panels)	50 years	Low pitches and long runs	Standing seam that carries its own loads can skip the tear-off (R908.3.1)
Slate	75 years	Older houses; 19% here predate 1940	Can’t be roofed over; check the framing for the weight
Flat roof: EPDM or TPO	15 years	Porches, additions, low-slope rears	Where the roof meets a wall or parapet

Checking a contractor in Pennsylvania

A contractor who does $5,000 or more of home improvement work a year must be registered with the Pennsylvania Attorney General, and the number has to be on every contract and estimate (HICPA § 3, § 6). Ask for it before anyone starts on a roof in Shirley, and search it.

The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.

Questions about a new roof in Shirley

Does a roof replacement in Shirley need a permit?

Ask Shirley first. Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). The township code office can say what Shirley requires.

Is a roof-over allowed in Shirley, or is it a tear-off?

How old are the houses in Shirley?

By the Census Bureau’s American Community Survey (2020–2024), the median home in Shirley was built in 1986, 46% of homes were built before 1980, 86% are owner-occupied.

How often does hail hit Shirley?

Hail of 1 inch or larger was reported on 1 day within 10 miles of Shirley from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.

How do I check a roofing contractor in Shirley?

What they will ask on the phone

Where the house is: the Shirley address or ZIP
How many stories the house has, and whether it is detached or attached
Whether it is a manufactured home
The roof you have today, shingle, metal, slate, tile or flat, and its rough age
How many layers are on it, if you know
That the job is a full replacement or a new roof, and your timing
Any historic-district or HOA rules on the house in Shirley
That you own the home and decide on the roof

The full list: before you call.