Franklin County, Missouri

Window and siding replacement in Pacific

What the code and the permit desk actually require here — and what the houses in Pacific tend to be hiding behind the siding.

People
7,414
Homes
3,218
Size
6.65 square miles
From downtown
About 30 miles southwest
ZIP codes
63069
Founded or incorporated
1859

Meramec River flooding is documented in Pacific in 1895 and 1915, and an 1891 fire destroyed all buildings on St. Louis Street between First and Columbus; the city also straddles the Franklin/St. Louis county line.

Pacific

Downtown core has brick commercial buildings restored from the late 1800s along First and St. Louis Streets, plus 1930s-40s Route 66 motor-court era structures (Red Cedar Inn, Al-Pac Motel, Beacon Court); typical home dates to around 1991, reflecting later 20th-century suburban infill around that older core.

What that vintage turns up

First-generation vinyl replacements went in across this whole period and they are now hitting both of the ages that matter at once: the frames are inside the twenty-to-forty-year band and the sealed glass units are well past the eight-to-twenty-year band. That combination produces the most common call we get on houses this age — fogged glass in a frame that is still perfectly sound. The honest first answer there is replacing the glass unit, not the window.

Hardboard and wood-composite lap siding from this era is the one with the paperwork. Masonite's hardboard covered product installed between 1980 and 1998 and reached roughly four million homeowners; Louisiana-Pacific's Inner-Seal siding had its own national settlement in the mid-1990s. Both claim programmes closed years ago, so the relevance now is diagnostic rather than financial: swelling, delamination and mushrooming along the bottom edges of the boards on a house of this age is a known product history, not necessarily the owner having neglected it.

The one to watch on a house of this age

Synthetic stucco applied before about 1997 is the high-risk cohort. Roughly ninety-five per cent of American applications were the face-sealed kind, which has no way to drain what gets past it, and the failures traced back overwhelmingly to flashing that was left out. Drainable systems are a different animal and are not the problem.

Next door

Pacific shares a boundary with Eureka. Where we have a page for a neighbour it is linked; where we do not, the rules there are still different from the rules here.

The rules in Pacific

Siding replacement Permit required

Re-siding is not listed among work exempt from permit. City Code Sec. 500.152 adopts 'the 2018 International Residential Code as published by the International Code Council' (Ord. No. 3349, 12-20-2022) and Sec. 500.153(3) amends R105.2: 'Delete the following exceptions: Building No. 2 and 10. Amend Building No. 3 as follows: Retaining walls that are not over four (4) feet in heigh, unless supporting a surcharge.' Pacific therefore narrows the model exemption list (removing the fence and deck exemptions) and adds nothing; siding is not exempt under either the model 2018 IRC R105.2 or Pacific's amendment. Permit required under R105.1 as adopted.

Window replacement, same opening Permit required   Enlarging or cutting an opening Permit required

No same-opening / new-opening distinction is drawn. The 2018 IRC R105.2 model list contains no door/window replacement exemption and Sec. 500.153(3) adds none - it only deletes two exceptions and rewords the retaining-wall one - so a permit is required for window replacement in either case. Same caveat: read from the adopted and amended code text, not from a city page.

There is no legal efficiency requirement for a window in Pacific

Pacific is the clearest express non-adoption in this metro. Sec. 500.153(40), amending the adopted 2018 IRC: 'Chapter 11, Energy Efficiency - Delete in its entirety.' Sec. 500.060(2), amending the adopted 2018 IBC: 'B 101.4.6 Energy: Delete in its entirety.' Chapter 500's twelve articles (Building Commissioner, Building Code, Mechanical, Plumbing, Fire, Property Maintenance, Residential, Fuel Gas, Electrical, Occupancy, Dangerous Buildings, Fees) contain no Energy Conservation Code article and no IECC is adopted anywhere. So Pacific has affirmatively stripped the energy chapter out of both the IRC and the IBC and adopted no IECC in its place - a residential re-siding or window job in Pacific faces no local energy-code envelope or U-factor requirement.

Which does not make it a good idea to buy the cheapest glass available. It means nobody is going to stop you. ENERGY STAR asks for U-0.25 or lower here and that is the number worth buying to, code or no code.

Contractor registration Not published

No contractor licensing or registration provision exists anywhere in Chapter 500 Building and Construction. Title V (Building and Construction) chapters are 500 Building and Construction, 505, 510, 515, 520 (reserved) and 525 - none is a contractor-licensing chapter. No business-licence-for-contractors requirement was found on the Building Department page.

Local quirks

IRC Chapter 11 deleted in its entirety and IBC Sec. 101.4.6 Energy deleted in its entirety, with no IECC adopted to replace them.

Who to call

Building dept
636-271-0500
Official
Not published. Any site printing a name here is guessing.
Permits
Department page

How Pacific compares with the rest of Franklin County

Same county, same climate, same houses. Not the same rules.

PlacePermit to re-sidePermit for a windowWindow must meet
PacificYesYes
UnionYesYes
WashingtonDependsDepends

Work we have done in Pacific

Not yet — Pacific is on our list rather than in our records. We will say so until that changes.

Where these facts came from

Everything on this page about Pacific was read off a published source. Where a question has no published answer we have said so rather than filling the gap.

Sources: pacificmo.gov · ecode360.com · ecode360.com · ecode360.com · ecode360.com · ecode360.com · ecode360.com · ecode360.com

Work coming up in Pacific?

We will tell you what the rules here are, including when they work in your favour.

Tell us about the house

We answer the phone. If we miss you, we call back.