Do I need a permit for a commercial reroof in Hammond?

Yes. Louisiana requires permitting and inspection of roof construction and reroofing of commercial structures for projects beginning on or after 1 August 2025, and for buildings other than one and two family dwellings the reference is International Building Code Chapter 15, at La. R.S. 37:3737(I)(1).

What does the commercial roofing permit cost?

The City of Hammond permit application prices commercial renovation, repair and roofing at $50.00 up to $10,000 of construction value, and above that at $50 plus $5 per thousand. Those are the published figures as read in September 2026 and the current amount is confirmed by the Building Department on (985) 277-5655.

Is the Parish scale different for commercial work?

The Tangipahoa Parish schedule prices Renovations at $20 up to $10,000 of fair market value and $2.00 per thousand above that, and does not distinguish residential from commercial on its face. Because that is what the document shows rather than a statement of how a commercial reroof is filed, confirm the category with the Permit Office on (985) 542-2117.

Does my roofer need a state licence for commercial work?

Commercial roofing has its own licence classification, which is separate from the residential roofing classification that applies to houses. Ask for the Louisiana state licence number and its expiry date and verify the number and the classification directly with the State Licensing Board, because the classification matters as much as the number.

Should the existing roof be torn off or recovered?

It is decided on the deck. A recover is quicker and cheaper and is only honest where the deck and existing insulation are dry and sound and the number of existing layers still allows it. Wet insulation under a new membrane fails the new roof and voids most manufacturer warranties.

Can the work happen while the building stays open?

Usually. The roof comes off in sections small enough to be stripped, dried in and made watertight the same day, and areas over plant or stock are sequenced deliberately. It is slower than a vacant building, which is a programme consideration rather than a specification one.

Does the manufacturer warranty cover everything?

No, and it is a separate record from the permit file. Enhanced system warranties commonly require an approved installer and a manufacturer review before they are issued, while basic material warranties often do not, and every one carries its own conditions. Requirements vary by manufacturer and warranty type, so the terms are read before the system is chosen rather than after. Neither document substitutes for the other.

What usually sets the programme?

The rooftop penetrations and the weather windows, rather than the field of the roof. Units, ducts and drains take longer than open area, and on an occupied building the amount of deck that can be opened at once is limited by what can be closed again the same day.

Home/Service Areas/Louisiana/Hammond/Commercial Roof Replacement

Commercial Roof Replacement in Hammond, LA

Big Easy Roofing replaces low slope commercial roofs across Hammond and Tangipahoa Parish. On a commercial roof the membrane is the part everyone quotes and the insulation under it is where the money and the risk actually sit, so the first thing we settle is whether the existing assembly comes off or stays.

Get Your Commercial Quote! Call (504) 800-8196

Service

City

Tear off or recoverThe first decision

$50 plus $5 per $1,000City commercial permit scale

IBC Chapter 15Code for the building

Renews 31 DecemberParish contractor registration

Hammond commercial roof replacement at a glance

A commercial reroof here runs on two decisions and two documents. Whether the existing assembly is stripped or recovered, and which office issues the permit, because Hammond is one of the few places in this region where a commercial roofing permit scale is actually published rather than quoted on request.

The City publishes a commercial scale

$50, then $5 per thousand

The City of Hammond permit application prices commercial renovation, repair and roofing at $50.00 up to $10,000 of construction value. Above that the form shows an initial $50 and a rate of $5 per thousand, without saying whether the rate runs on the whole value or only the part above $10,000, so the calculation is confirmed with the City. Commercial is priced higher than the residential line on the same form.

The Parish line does not split the two

Renovations, either way

The Tangipahoa Parish schedule prices Renovations on fair market value, listing $20 for a value up to $10,000 and $2.00 per thousand at $10,000 or more. The Renovations line itself is not labelled residential or commercial, so which category a commercial reroof is filed under is confirmed with the office.

There is an annual registration as well

$100, expiring 31 December

The Parish charges a contractor and subcontractor registration of $100, valid from the date of issue to 31 December of that calendar year. Because the published expiry is 31 December rather than twelve months from issue, a registration taken out later in the year has less than a full year left on it.

The code reference is different from a house

IBC Chapter 15

Louisiana requires permitting and inspection of reroofing for buildings other than one and two family dwellings in compliance with International Building Code Chapter 15, at La. R.S. 37:3737(I)(1). The Parish states it implemented the 2021 building codes and the 2020 NEC effective 1 January 2023.

Two records come out of the job

Permit file and warranty file

The permit and its inspections are one record, held by the authority. The membrane manufacturer's warranty is a separate record with its own conditions. Enhanced system warranties commonly require an approved installer and a manufacturer review, while basic material warranties often do not, so requirements vary by manufacturer and warranty type. Neither record substitutes for the other.

Starting before the permit issues costs more

City of Hammond

The City application states that failing to get the permit before work begins results in a stop work order and a doubling of the City permit fees, and that the City may require removal of the work begun and impose monetary fines.

Every figure on this page is an estimate, not a quote, and is subject to Big Easy Roofing sign off. Cost and timescale depend on size, pitch, access, weather, materials and whatever is found once work starts, so call Big Easy Roofing on (504) 800-8196 and we will come out and give you an estimate for your own roof.

This page addresses roofing on buildings treated as nonresidential for licensing and code purposes. Mixed use buildings and residential multifamily need their own classification and code review, because the residential rules run on the character of the structure rather than on what a contract calls the job.

Permit and registration figures on this page are the published scales as we read them in September 2026, not a quote from either office. Commercial roofing itself is priced on area and assembly rather than a published range, so call (504) 800-8196 for a scoped price.

The assemblies we replace and what each one is for

Five systems account for the bulk of low slope commercial roofing. The table sets out what each is suited to and what to watch on it, so a quote can be read against the building and its use rather than against a brand name on the cover sheet.

Assembly	What it suits	Typical service life	What to watch
TPO single ply	Large open roofs where a reflective surface is wanted	20 to 30 years	Seam quality is the whole system, and welded seams are only as good as the day they were run
PVC single ply	Kitchens, plant rooms, grease or chemical exposure	20 to 30 years	Costs more than TPO, which is exactly why it is specified where grease is present
EPDM rubber	Simple roofs where a long track record is wanted	20 to 30 years	A black surface absorbs heat, so it is a poorer fit where cooling load matters
Modified bitumen	Smaller roofs, foot traffic, complex detailing	15 to 25 years	Detailing is its strength and the number of laps is where workmanship shows
Built up roofing	Heavy traffic, long established buildings	20 to 30 years	Weight is the constraint, so the deck and structure decide whether it is even an option

Service life assumes the assembly is drained, insulated and detailed properly. Any of the five will fail early on a roof that ponds, so drainage is settled with the membrane rather than after it.

The permit route here has a published price

Most places in this region make a facilities manager ring for a commercial roofing permit figure. Hammond prints one. What still has to be settled is which office covers the building, because the two scales differ and one of them also carries an annual registration.

Permitting and inspection are compulsory

Statewide since 2025

The State Licensing Board for Contractors states that Act 239 requires permitting and inspection of roof construction and reroofing of residential and commercial structures for any project beginning on or after 1 August 2025. It is carried at La. R.S. 37:3737(I).

Inside the city limits

City of Hammond

The Building Department at 219 E Robert St, open Monday to Friday 8am to 4pm, on (985) 277-5655. Its published commercial renovation, repair and roofing scale starts at $50.00 up to $10,000 of construction value.

Outside the city limits

Tangipahoa Parish

The Parish Permit Office at 15485 West Club Deluxe Road, on (985) 542-2117. It adopted the 2021 building codes and the 2020 NEC with effect from 1 January 2023, and also handles the contractor registration.

Ask for the classification on a commercial job too

Verify with the Board

Commercial roofing carries its own licence classification, separate from the residential roofing rule that applies to houses. Ask any contractor bidding this work for their Louisiana state licence number and its expiry date, and verify the number and the classification with the State Licensing Board rather than taking it from a letterhead.

Failing to obtain inspections is a violation

Act 422 of 2025

The Board states that Act 422 makes it a violation of the law for a contractor to fail to obtain a permit, to begin work before the permit is issued, to misrepresent the value or scope of work, or to fail to obtain inspections as required by law. The memo sets it out.

The registration date that catches people out

The Parish contractor and subcontractor registration is $100 and runs from the date of issue to 31 December of that calendar year. It is not a rolling twelve months, so a registration taken out in the autumn expires within weeks of a job that runs into the new year.

On a phased commercial project that crosses the year end, the registration renewal is a programme item rather than an afterthought. It sits alongside the re-inspection and certificate of occupancy charges the same schedule publishes.

Why the value declared on the application matters

Both published scales are calculated on the value of the work, so the figure entered on the application drives the fee. Act 422 separately makes it a violation for a contractor to misrepresent the value or scope of work, which puts an accurate figure on both sides of the same requirement.

That is a reason to have the scope written and priced before the application is filed rather than after, and it is the same discipline that keeps the permit file and the manufacturer warranty file agreeing with each other later.

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Replacing a roof over a building still in use

Most commercial reroofs here happen over an occupied building, which changes the sequence more than it changes the specification. Three constraints do the work, and all three are programme decisions taken before the first fastener rather than problems solved on site.

The building keeps operating, so the roof comes off in sections

Work is broken into areas that can be stripped, dried in and made watertight within the same day, rather than opening more deck than the weather allows. That is slower than a vacant building and it is the only way to protect what is underneath.

It also decides where the tear off starts. Areas over plant, stock or anything that cannot be moved are sequenced deliberately, not left until last by default.

Rooftop plant and penetrations are the real programme

Units, ducts, conduit and drains all have to be lifted, isolated or worked around, and each one is a detail that will leak if it is reinstated badly. On most commercial roofs the penetrations take longer than the field.

Where equipment has to be shut down or lifted, that is scheduled with the building rather than assumed, because a crane slot and a tenant notice are not things that can be arranged on the morning.

Tear off or recover is decided on the deck, not the budget

A recover leaves the existing assembly in place and is quicker and cheaper, but it is only honest where the deck and the existing insulation are dry and sound, and where the number of existing layers still permits it.

Wet insulation left under a new membrane fails the new roof and voids most manufacturer warranties. Where a survey shows moisture, the tear off is the answer even though it is the more expensive one.

Big Easy Roofing Process

Four steps. The first two are survey and paperwork, because on a commercial building the deck condition decides the assembly and the declared value decides the permit fee.

A low slope commercial roof during tear off with rooftop plant and drainage visible

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01 Survey the deck and the existing assembly

Moisture, insulation condition, number of existing layers and drainage. This decides tear off or recover before anything is priced.

02 Establish the office and file the application

City of Hammond or Tangipahoa Parish, on the scale that applies, with the value and scope stated accurately and the contractor registration current where the Parish covers it.

03 Specify the assembly with its insulation and drainage

Membrane, insulation, fastening and falls specified together, with the manufacturer warranty conditions known before the system is chosen rather than after.

04 Phase the work and hand over both records

Sections stripped and dried in the same day, then the permit file with its inspections and the manufacturer warranty file handed over together.

Everything else we do in Hammond

The rest of the Big Easy Roofing services available in Hammond, each with its own page and scope of work. A replacement is the point at which drainage, insulation and rooftop penetrations can all be corrected at once, so it is worth reading the ventilation and coating pages alongside this one.

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