Roof Replacement in North Centre, PA

The median home in North Centre was built in 1978; there are 802 of them. What the code requires when that roof is replaced, and who signs off, is below.

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 North Centre

Permit

Ask North Centre first

The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). So the township code office in North Centre is the one to ask before work starts.

Source: 34 Pa. Code § 403.1(b)

Layers

No third layer

IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 55% of North Centre’s homes were built before 1980, ask what is under the newest layer.

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

Ice barrier

Set by the local climate table

IRC R905.1.2 calls for an ice barrier where Table R301.2 says so; in Pennsylvania the municipality completes that table. North Centre’s answer is with the township code office.

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

Checked against the code text on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Pennsylvania.

Homes and roofs in North Centre

95% of the occupied homes in North Centre are lived in by their owners: 704 households, the people this line is for. Counting by decade, 11% before 1940, 19% before 1960, 55% before 1980 of the housing was in place, and 22% dates from 2000 on. (ACS 2020–2024.)

The housing is 80% detached houses, 18% manufactured homes.

Of the 22 Columbia County municipalities on this site, North Centre has the 18th largest share of homes built before 1980: 55%, against a county range of 42% to 93%.

North Centre and the towns around it

Place	Median built	Before 1980	Owners	Row, twin	Hail days
North Centre	1978	55%	95%	0%	5
South Centre	1975	58%	71%	1%	4
Orange	1984	44%	97%	1%	6
Scott Township, Columbia County	1972	60%	75%	2%	4
Briar Creek	1974	65%	86%	1%	3
Mifflin Township, Columbia County	1971	70%	84%	4%	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.

Hail and storms near North Centre

NOAA’s storm reports show 5 days since 2006 with hail of at least 1 inch inside a 10-mile circle around North Centre, topping out at 1.75 in on May 22, 2014. The most recent was June 26, 2024.

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

At the county level, North Centre shares Columbia County’s record of 2 storm disaster declarations since 2006, the newest DR-4408 (Severe Storms and Flooding, November 2018). (OpenFEMA.)

Storm reports are what observers logged, not a measure of damage to any roof. When wind or hail damage means a new roof.

What goes on the roof next

Useful life is HUD’s planning figure, not a warranty. 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; 80% 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	Simple roofs with long, unbroken slopes	A complete standing-seam system may go over the old roof (R908.3.1)
Slate	75 years	Older houses; 11% here predate 1940	Never a base for a new layer (R908.3.1.1); heavy
Flat roof: EPDM or TPO	15 years	Additions and porch roofs	Seams at walls and drainage

Checking a contractor in Pennsylvania

Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in North Centre and look it up.

Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Pennsylvania.

Questions about a new roof in North Centre

Does a roof replacement in North Centre need a permit?

Ask North Centre first. The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). So the township code office in North Centre is the one to ask before work starts.

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

When were most homes in North Centre built?

By the Census Bureau’s American Community Survey (2020–2024), the median home in North Centre was built in 1978, 55% of homes were built before 1980, 95% are owner-occupied.

How many hail days has North Centre had?

Hail of 1 inch or larger was reported on 5 days within 10 miles of North Centre from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.

What license or registration should a roofer in North Centre have?

What they will ask on the phone

The street address in North Centre, or at least the ZIP code
One story or two (or more), detached or attached
The roof you have today, shingle, metal, slate, tile or flat, and its rough age
The number of layers, if anyone has counted
That you want a new roof or a full replacement, and when you want the work done
Whether the house is in a historic district or an HOA
That the house is yours and the decision is yours

The full list: before you call.