Roof Replacement in Beaver, PA

The median home in Beaver was built in 1980; there are 466 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 Beaver

Permit

Beaver’s ordinance decides

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 Beaver is the one to ask before work starts.

Source: 34 Pa. Code § 403.1(b)

Layers

One old layer can stay; two cannot

IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 50% of Beaver’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

The code requires an ice barrier where the local climate table (Table R301.2) says so, and each Pennsylvania municipality fills that table in. Ask the township code office or the contractor what Beaver’s says.

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

Checked against the code text on October 24, 2026. Everything else the state requires: roof replacement in Pennsylvania.

Homes and roofs in Beaver

96% of the occupied homes in Beaver are lived in by their owners: 380 households, the people this line is for. Counting by decade, 25% before 1940, 31% before 1960, 50% before 1980 of the housing was in place, and 20% dates from 2000 on. (ACS 2020–2024.)

The housing is 90% detached houses, 10% manufactured homes.

Of the 22 Columbia County municipalities on this site, Beaver has the 20th largest share of homes built before 1980: 50%, against a county range of 42% to 93%.

ZIP codes: 17985

Beaver and the towns around it

Place	Median built	Before 1980	Owners	Row, twin	Hail days
Beaver	1980	50%	96%	0%	5
Mifflin Township, Columbia County	1971	70%	84%	4%	4
North Union	1978	53%	93%	2%	4
Main	1975	59%	82%	1%	5
Black Creek	1972	61%	92%	7%	6
South Centre	1975	58%	71%	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.

Hail and storms near Beaver

NOAA’s storm reports show 5 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Beaver, 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, Beaver 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

HUD’s useful-life figures are for planning; a warranty is a separate promise. For Beaver’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; 90% 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; 25% 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

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 Beaver, and search it.

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 Beaver

Does a roof replacement in Beaver need a permit?

Beaver’s ordinance decides. 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 Beaver is the one to ask before work starts.

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

IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 50% of Beaver’s homes were built before 1980, ask what is under the newest layer.

When were most homes in Beaver built?

By the Census Bureau’s American Community Survey (2020–2024), the median home in Beaver was built in 1980, 50% of homes were built before 1980, 96% are owner-occupied.

How many hail days has Beaver had?

Hail of 1 inch or larger was reported on 5 days within 10 miles of Beaver 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 Beaver have?

What they will ask on the phone

The street address in Beaver, or at least the ZIP code
The number of stories, and whether the house stands alone
What is on the roof now (asphalt shingles, metal, slate, tile, or a flat membrane) and roughly how old it is
How many layers are on it, if you know
Your timing for a complete replacement
Whether the house is in a historic district or an HOA
That you are the owner and the one who decides

The full list: before you call.