Half of the 1,696 homes in Annville were built before 1959. 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 Annville
Permit
Annville’s ordinance decides
Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). Whether Annville wants a permit is in its own ordinance; ask the township code office before the old roof comes off.
A new roof may go over one existing layer; with two or more, or over slate, clay or cement tile, everything comes off to the deck (IRC R908.3.1.1). 69% of Annville’s homes were built before 1980, so count the layers before comparing quotes.
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). The contractor or the township code office in Annville 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 Annville
Of 1,615 occupied homes in Annville, 981 (61%) are owner-occupied. Counting by decade, 26% before 1940, 51% before 1960, 69% before 1980 of the housing was in place, and 9% dates from 2000 on. (ACS 2020–2024.)
The housing is 43% detached houses, 22% attached single-family houses (rowhouses, twins and townhouses), 13% buildings of two to four units.
Of the 23 Lebanon County municipalities on this site, Annville has the 8th largest share of homes built before 1980: 69%, against a county range of 31% to 88%.
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 Annville
NOAA’s storm reports show 18 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Annville, topping out at 1.75 in on March 29, 2009. The most recent was August 6, 2024.
That is more hail days than 85% of the places in the state on this site.
At the county level, Annville shares Lebanon County’s record of 3 storm disaster declarations since 2006, the newest DR-4267 (Severe Winter Storm and Snowstorm, March 2016). (OpenFEMA.)
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Annville’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; 43% 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 houses; 26% here predate 1940
Sound slate can be reused (R908.5); broken slate cannot
Flat roof: EPDM or TPO
15 years
Low-slope roofs and rear sections (22% of homes here are attached)
Where the roof meets a wall or parapet
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 Annville and look it up.
Does a roof replacement in Annville need a permit?
Annville’s ordinance decides. Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). Whether Annville wants a permit is in its own ordinance; ask the township code office before the old roof comes off.
Is a roof-over allowed in Annville, or is it a tear-off?
A new roof may go over one existing layer; with two or more, or over slate, clay or cement tile, everything comes off to the deck (IRC R908.3.1.1). 69% of Annville’s homes were built before 1980, so count the layers before comparing quotes.
When were most homes in Annville built?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Annville was built in 1959, 69% of homes were built before 1980, 61% are owner-occupied.
How many hail days has Annville had?
Hail of 1 inch or larger was reported on 18 days within 10 miles of Annville 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 Annville have?
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 Annville and look it up.
What they will ask on the phone
Where the house is: the Annville address or ZIP
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