The median home in Penn Forest was built in 1992; there are 7,029 of them. 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.
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.
The rules for a reroof in Penn Forest
Permit
Penn Forest’s ordinance decides
Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). So the township code office in Penn Forest is the one to ask before work starts.
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. 21% of Penn Forest’s homes were built before 1980, so count the layers before comparing quotes.
IRC R905.1.2 calls for an ice barrier where Table R301.2 says so; in Pennsylvania the municipality completes that table. The contractor or the township code office in Penn Forest will know.
Checked against the code text on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Pennsylvania.
Homes and roofs in Penn Forest
Owners live in 3,878 of Penn Forest’s occupied homes, or 90%. Counting by decade, 5% before 1960, 21% before 1980 of the housing was in place, and 30% dates from 2000 on. (ACS 2020–2024.)
The housing is 92% detached houses, 3% attached single-family houses (rowhouses, twins and townhouses).
32% of the homes in Penn Forest are seasonal or occasional-use homes (ACS 2020–2024). If yours is one of them and you live elsewhere, the call still has to come from you as the owner.
30% of homes here were built in 2000 or later. HUD’s useful-life table gives an asphalt-shingle roof 20 years, so roofs on houses from the early 2000s are reaching that age.
Of the 15 Carbon County municipalities on this site, Penn Forest has the smallest share of homes built before 1980: 21%, against a county range of 21% to 95%.
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 Penn Forest
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 7 separate days within 10 miles of Penn Forest; the largest was 2.75 in on August 17, 2007. The most recent was July 25, 2023.
That is fewer than most places in the state on this site (median 12 days).
Carbon County has had 1 federal major-disaster declaration for storms since 2006; the latest was DR-1649, Severe Storms, Flooding, and Mudslides (June 2006). (OpenFEMA.)
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Penn Forest’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; 92% 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
Roofs that will carry solar later
A complete standing-seam system may go over the old roof (R908.3.1)
Slate
75 years
Older and historic houses
Never a base for a new layer (R908.3.1.1); heavy
Flat roof: EPDM or TPO
15 years
Additions and porch roofs
Coating is not a replacement
Checking a contractor in Pennsylvania
Before signing for a roof in Penn Forest, get the contractor’s PA registration number: the home improvement law requires registration with the Attorney General above $5,000 a year of such work, and the number on contracts and estimates (HICPA § 3, § 6).
Is a permit required for a new roof in Penn Forest, PA?
Penn Forest’s ordinance decides. Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). So the township code office in Penn Forest is the one to ask before work starts.
Can a new roof go over the old one in Penn Forest?
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. 21% of Penn Forest’s homes were built before 1980, so count the layers before comparing quotes.
When were most homes in Penn Forest built?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Penn Forest was built in 1992, 21% of homes were built before 1980, 90% are owner-occupied.
Does Penn Forest get hail that damages roofs?
Hail of 1 inch or larger was reported on 7 days within 10 miles of Penn Forest 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 Penn Forest have?
Before signing for a roof in Penn Forest, get the contractor’s PA registration number: the home improvement law requires registration with the Attorney General above $5,000 a year of such work, and the number on contracts and estimates (HICPA § 3, § 6).
What they will ask on the phone
Your address or ZIP code in Penn Forest
One story or two (or more), detached or attached
The roof you have today, shingle, metal, slate, tile or flat, and its rough age
Whether there is one layer or more, if you know
That the job is a full replacement or a new roof, and your timing
Whether the house is in a historic district or an HOA