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Commercial Roofers In Randolph, MA

Built For 122 MPH. Quoted Line By Line.

EPDM and TPO systems, sectional repair and scheduled maintenance for the buildings Randolph works out of: flex and light industrial off Route 24, warehouse and distribution, storefronts, offices and multifamily. Specified to the loads the code assigns this town, filed through PermitEyes, and documented for whoever you answer to.

A Randolph commercial roof is a wind problem before it is a snow problem. The Massachusetts building code assigns Randolph a 35 psf ground snow load and a 122 mph design wind speed for an ordinary commercial building. Worcester gets 50 psf of snow and 117 mph of wind. Quincy, 8 miles east on the water, gets 40 psf and 121 mph. Randolph sits at the bottom of the snow range and the top of the wind range, and wind is what sets your attachment method, your fastener density at the corners, and your edge metal. Powersol Roofing runs commercial work across Randolph and the surrounding towns from our shop at 100 Hancock St in Quincy. Call (617) 631-5435 or request an assessment.

Same crewCore cut to final walkthrough, one point of contact
Your hoursStaging, crane and dock access scheduled around operations
In writingPhoto-documented condition report after every visit

The numbers nobody publishes

Randolph, Stoughton And Holbrook Are Not The Same Spec.

Massachusetts publishes a design snow load, a wind speed by Risk Category and seismic values for every city and town in the state, in Table 1604.11 of 780 CMR Chapter 16. The rows change at the town line, and they change in ways that matter. Randolph and Stoughton share the same 35 psf ground snow load. Stoughton’s minimum flat-roof snow load is 35 psf. Randolph’s is 30. Holbrook, which borders Randolph, carries a higher wind number in every Risk Category. A spec carried across a town line without re-reading the row is a spec for the wrong building.

City or town Ground snow Pg Min flat-roof Pf Wind, Risk Cat II Wind, Risk Cat III
Randolph35 psf30 psf122 mph130 mph
Braintree35 psf30 psf122 mph130 mph
Stoughton35 psf35 psf122 mph131 mph
Holbrook35 psf30 psf123 mph131 mph
Quincy40 psf30 psf121 mph130 mph
Worcester50 psf35 psf117 mph127 mph
01
Randolph carries more wind than Quincy122 mph against 121 at Risk Category II, from a town 8 miles inland. The coastal assumption that wind drops off as you leave the water does not hold across this stretch of Norfolk County, and the table is the reason to stop assuming.
02
Stoughton’s flat-roof floor is 5 psf higherSame ground snow load, different minimum flat-roof snow load. A contractor quoting a Randolph building and a Stoughton building off one spreadsheet is under on one of them. The rows are published. There is no reason to guess.
03
30 psf is a floor, not a ceilingThe code says to use the larger of the table value or the flat-roof load calculated for your roof. Add a parapet, a roof step, a screen wall or a bank of rooftop units and drift and sliding surcharge push the design load above 30 psf on a building the table says is a 30 psf building.
04
Risk Category moves the wind number twiceRandolph runs 112 mph at Risk Category I, 122 at II, 130 at III and 135 at IV. A warehouse is Category II. A school, a church hall or anything holding more than 300 people is Category III, and the perimeter and corner fastening zones tighten with it across the whole roof, not only at the edge.

What changed this year

The Stretch Energy Code Took Effect In Randolph On 1 January 2026.

Randolph Town Council adopted Council Order 2025-044 on 11 August 2025 by a vote of 6 to 0, adding Section 83-4 to Chapter 83 of the Town Code. The order adopts 225 CMR 22 and 23, excluding Appendices RC and CC, and makes the Stretch Energy Code enforceable in Randolph by the Building Commissioner. It took effect on 1 January 2026. Randolph came to this late relative to most of Massachusetts, which means something specific for anyone reading contractor pages: a commercial roofing page written for this town before 2026, or refreshed without checking, is describing an energy code Randolph no longer runs on.

01
Insulation stops being an upgrade lineOn a replacement, the assembly gets pulled to current code. Massachusetts is climate zone 5, where R-30 continuous above the deck is the benchmark for insulation sitting entirely above a low-slope commercial deck. Under the Stretch Code the envelope is assessed on U-factor with thermal-bridge accounting, so a roof does not get traded away against a wall as freely as some older compliance paths allowed.
02
Membrane-only recovers get harder to defendLaying new membrane over thin or saturated existing foam is the first conversation you will have with the Building Department, and it is a conversation worth having before the contract rather than after. Ask Inspectional Services directly how they are treating recovers against tear-offs since 1 January, and get the answer in writing on the application.
03
The Building Commissioner enforces itThe order names the Building Commissioner as the enforcing authority in Randolph. That is Ronald Lum’s office at 41 South Main Street. This is not a state-level question routed to Boston. It gets decided at the counter on the second floor.
04
Appendices RC and CC are excludedThe order adopts 225 CMR 22 and 23 and specifically excludes Appendices RC and CC, which are the Specialized Code appendices. Randolph adopted Stretch, not Specialized. Anyone telling you the town went to the Specialized Code is describing a different ordinance.

Who this is for

Roofing By Building Type, Because They Fail Differently.

A restaurant roof dies at the grease exhaust. A warehouse roof dies at the drains and the corners. Knowing the pattern is half the inspection, and it is why the first visit to any Randolph building starts with questions about how the building gets used, before anyone looks at the membrane.

01
Flex and light industrial off Route 24The Teed Drive corridor and the streets around it lease as office, flex and light industrial with quick access to Route 24 and I-93. Mixed use inside one envelope means mixed roof loading, roof-mounted equipment nobody logged, and penetrations added by 3 different tenants over 20 years.
02
Warehouse and distributionBig open spans where 1 blocked drain ponds a lot of water fast. Standing water is dead load the structure was never asked to carry. On a 122 mph building the other failure point is the corner zone, where uplift runs highest and where a light fastening schedule shows up first.
03
Retail and storefrontsSignage penetrations, party walls and customers underneath. Repairs staged before opening hours so the work happens over an empty floor.
04
Offices and mixed-useHVAC curbs and rooftop traffic wear. Work sequenced so tenants keep their meetings and their ceilings, and so the units stay in service through the job.
05
Multifamily and condo boardsDocumentation and reserve planning matter as much as the repair. Massachusetts requires every condominium to maintain an adequate replacement reserve fund and never defines adequate, so the dated condition report is what makes the reserve figure defensible to unit owners.
06
Institutions and assembly buildingsChurches, clubs and schools land in Risk Category III, which moves Randolph’s design wind speed from 122 mph to 130. The fastening schedule changes across the whole roof. This is the building type most often quoted off the wrong number.

What the money buys

A Commercial Roof Is Five Layers. The Low Number Thins One Of Them.

The membrane everyone sees is the last of 5 layers. Each does a different job, each fails in its own way, and each gets its own line on our quote with the manufacturer, the thickness and the attachment method named.

That is why 2 quotes for the same roof come back far apart. Compare them layer by layer. If a number is lower, something specific is thinner, missing or being reused, and you are entitled to know which before you sign. On a Randolph replacement the insulation line is usually where the gap hides, because the Stretch Code pulls that layer up on a replacement and leaves it alone on a recover.

MembraneEPDM or TPO, the waterproof skin and the only layer weather touches
Cover boardHardens the system against hail, foot traffic and dropped tools
InsulationPolyiso. R-30 continuous above deck is the climate zone 5 benchmark on a replacement, tapered to kill ponding
Vapor retarderWhere the building’s use calls for it, keeps interior moisture out of the assembly
Structural deckSteel, wood or concrete, inspected and repaired while the roof is open

What the code says

Recover Or Tear Off: The Question That Decides Your Budget.

Massachusetts runs on the 2021 International Building Code through 780 CMR Chapter 15, and reroofing lives in Section 1512. A recover is not permitted where the existing roof is water-soaked or has deteriorated past serving as a base, where the covering is slate, clay, cement or asbestos-cement tile, or where the roof already carries 2 or more applications. Where any of those is true, the job is a replacement, and replacement means every layer comes off down to the deck.

01
The layer countYou get 1 recover. A roof already carrying 2 applications cannot take a third. Nobody knows the count from the ground, which is why a core cut goes in before the quote instead of turning up as a change order in week 2. We wrote up the same decision on a smaller scale in overlay against tear-off.
02
The insulation triggerA replacement brings the insulation to current code. A recover does not. Since 1 January 2026 that reading happens under the Stretch Code in Randolph, with R-30 continuous above deck as the climate zone 5 benchmark. The code carries relief where added thickness would foul parapet height, equipment curbs, window sills or door thresholds.
03
The added dead loadA recover puts a second membrane and often more insulation onto a structure sized decades ago. On a 1970s flex building that added weight is part of the recover decision, and it almost never appears as a line on a competing quote.
04
The drainage ruleSecondary overflow drains or scuppers are required where the perimeter construction will trap water if the primary drains block. Massachusetts amends the code so drainage sizing points at 248 CMR, the state plumbing code, rather than the International Plumbing Code. That is a Massachusetts-only detail and it changes whose calculation the building department wants to see.

Check your own building

The Randolph Commercial Roof Check.

Five questions. It returns the design loads the code assigns a Randolph building, whether a recover is legal on your roof, whether the 1 January 2026 Stretch Code touches the job, what Mass Save will and will not cover, how the permit and inspection actually get booked in this town, and what to put on the bid form so 2 quotes become comparable. Every output is built from published Massachusetts code, the Randolph town ordinance and the town’s own permit pages. No email, nothing stored, nothing sent anywhere.

    Planning guidance built from 780 CMR 10th edition Table 1604.11, the 2021 International Building Code as adopted in Massachusetts, Randolph Council Order 2025-044, the Town of Randolph permit pages and the published Mass Save commercial weatherization terms. It is not a structural calculation or a code ruling. Your building’s design load, drainage sizing and permit path get confirmed against the stamped drawings and with Randolph Inspectional Services.

    A local benchmark worth holding a bid against

    What The Newest Commercial Roof In Randolph Is Built Out Of.

    Most commercial roof specifications are private. One in Randolph is not. ARCO National Construction published the assembly on the speculative warehouse it completed for Bluewater Property Group on Randolph Road: a 60-mil JM TPO roof system with R-30 insulation and a Rhinobond induction heat-welded attachment system, on a 120,000 square foot building with 32-foot clear height, 54-foot column spacing and 22 dock positions. That is a current, local, published commercial spec, and it is a useful thing to hold a bid against.

    Read what the attachment choice is doing. Induction welding fastens plates through the insulation and then welds the membrane to the plates, so no fastener is driven through the finished membrane. That is an answer to a wind problem. On a 122 mph building with long open spans and high corner uplift, how the membrane is held down is a bigger question than which membrane it is, and it is the question most quotes answer in 3 words or not at all.

    None of that makes 60-mil TPO with R-30 the right answer for every Randolph roof. A 1970s flex building with a wet assembly, 2 existing applications and a deck nobody has looked at is a different job with a different verdict. What the published spec gives you is a reference point: if a bidder cannot discuss how their proposal compares to it and why theirs differs, that is information about the bidder.

    60-mil TPOMembrane thickness stated, not left to the submittal
    R-30 insulationThe climate zone 5 continuous-above-deck benchmark, on the drawings
    Rhinobond attachmentInduction welded, no fasteners through the finished membrane

    Three ways to engage us

    From One Repair To A Roof On A Documented Schedule.

    Most owners meet us at the leak. The ones who spend the least over a decade are the ones on the program, and it has nothing to do with any single repair being better. On a maintained roof, problems get found while they are still 20-minute fixes on a scheduled visit, instead of arriving as a phone call from the tenant under the worst part of it. Same crew, same standards, 3 ways in.

    When something is wrong

    Repair

    Leak tracing, seam and flashing repair, drain and scupper work, puncture patches and storm response, with the source photographed before and after.

    Same-day response for active leaksRepairs quoted line by lineNo interior access for most membrane work
    The one that pays

    Maintenance program

    Semiannual inspections, drains and scuppers cleared, seams and flashings checked, minor repairs done on the spot, and a photo-documented condition report after every visit.

    Spring and fall visits, plus a post-storm checkRecords kept in the format your guarantee asks forCondition reports written for budgets and boards
    When it is time

    Replacement

    Full system replacement, EPDM or TPO, staged in sections so the building keeps operating and the roof is dried in before the crew leaves each day.

    Core cut and layer count before the quoteEvery layer specified and priced separatelyCrane, delivery and dock access around your hours

    How a Randolph job actually gets filed

    Permits Online, Inspections By Phone, And The Work That Needs Neither.

    Most contractor pages get the department right and the process wrong. Randolph takes permit applications online through PermitEyes and does not take inspection requests that way. You call, before 9:00am. The Building Department sits at 41 South Main Street on the second floor, open Monday to Friday 8:30am to 4:30pm. Ronald Lum is the Building Commissioner on 781-961-0921. Richard Monahan is the Assistant Building Inspector. The main town line is 781-961-0900.

    01
    The inspector does not work every dayThe Building Inspector runs Tuesday, Wednesday and Friday. Electrical and plumbing run Monday, Wednesday and Thursday. A replacement schedule that assumes a same-week inspection on a Monday or a Thursday loses a day, and on a staged commercial job that day moves everything behind it.
    02
    Not every roof job needs a permitRandolph publishes an exemption list covering ordinary repairs that do not affect structural integrity, and it names “Roof; a portion of damaged shingles” as an example. A leak patch is not a tear-off. A tear-off is not a recover. A recover that adds insulation and edge metal is not a patch. If a salesperson says they handle all the permits but cannot tell you which of those 3 they are pulling, they have not read the job.
    03
    Nonresidential work can also reach PlanningRandolph’s site plan and design review provisions address rooftop equipment screening and roofline treatment on nonresidential projects. A membrane bid that ignores the rooftop unit screens can clear Building and still get held at Planning. Confirm with the town whether review applies to your parcel before the crane is booked, not after.
    04
    Ask the department, not the contractorThe most useful call you can make on a Randolph commercial reroof is to Inspectional Services, asking how they want the energy path shown on the drawings since 1 January. It takes 10 minutes and it is the one answer no contractor page can give you, because the answer belongs to the counter rather than the website.

    Before it lands in a budget

    Mass Save Is Not Going To Pay For Your Membrane.

    This one gets budgeted for and then does not arrive. The Mass Save commercial weatherization incentives apply to facilities of 20,000 square feet or less. They cover conditioned space only, and unconditioned or semi-conditioned space including warehouse and storage area is excluded outright.

    The covered measures are attic insulation, exterior wall insulation, basement insulation, and air sealing with door weatherstripping. Roof and roof-membrane insulation does not appear on that list at any building size. The residential offers sitting next to roofing articles online do not transfer to a building on Teed Drive.

    Above the threshold, commercial and industrial work goes to custom incentives measured in kWh or therms. That is a real path and it is worth pursuing on a large envelope project, but it is a separate application on a separate timeline and it is not a published rebate you can line-item into a roof budget this quarter.

    20,000 square feet or lessThe stated size limit for the commercial weatherization incentives. Most Randolph flex, warehouse and distribution product is over it before the measure list matters.
    Conditioned space onlyUnconditioned and semi-conditioned space, named to include warehouses and storage, is excluded. A heated office block inside a cold warehouse does not make the warehouse eligible.
    Roof insulation is not a measureAttic, exterior wall, basement, air sealing and weatherstripping. Above-deck roof insulation on a low-slope commercial roof is not on the covered list, which is the layer a reroof actually touches.
    Custom incentives above the lineLarger commercial and industrial projects are measured in kWh or therms saved through a custom application. Worth pursuing on an envelope project. Not a number to put in a roof budget before it is approved.

    For owners, managers and boards

    Documentation Built To Be Forwarded.

    A commercial roof decision rarely belongs to 1 person. Whoever you answer to, the file we leave behind is dated, photographed and written in plain English rather than roofing shorthand.

    Managers tell us this is the part that saves them time. The roof gets fixed either way. What stops is chasing a contractor for paperwork, re-explaining the building’s history to whoever shows up, and defending a budget line with nothing behind it.

    Condition reportDated photos, what was found, what was done and what to watch. Formatted to drop into a board packet without editing.
    Replacement horizonA realistic year, not a sales date. Massachusetts requires every condominium to maintain an adequate replacement reserve fund and never defines adequate. A dated condition report with a remaining-service-life estimate is what makes the number defensible to unit owners.
    Claim-ready evidenceDated pre-storm condition photos are the difference between a paid claim and an argument with an adjuster over pre-existing wear.
    Permit and code fileThe PermitEyes application, the inspection dates, and which energy code path the job was reviewed under. On a Randolph building filed in 2026 that last item is the one a future buyer’s engineer will ask about.

    Where we work

    Commercial Roofing Across Randolph And The Route 24 Corridor.

    Powersol Roofing runs commercial work across Randolph and the towns around it from 100 Hancock St in Quincy, about 8 miles from Randolph Center. The design numbers change at these town lines, so we read the row before we write the spec rather than carrying one sheet across the county. See the full range of roofing services we run, or our commercial roofing work in Quincy. Membrane detail sits on the flat roofing page, and wind damage after a storm goes to storm damage repair. More on the company is on the about page.

    RandolphHolbrookBraintreeStoughtonAvonCantonMiltonQuincyWeymouthBrocktonAbingtonSharonDedhamDorchester

    Straight answers

    Frequently Asked Questions

    What snow and wind loads does a Randolph commercial roof have to carry?

    Randolph is assigned a 35 psf ground snow load and a 30 psf minimum flat-roof snow load in Table 1604.11 of 780 CMR, the Massachusetts building code. Design wind speed runs 112 mph at Risk Category I, 122 mph at Risk Category II, 130 mph at Risk Category III and 135 mph at Risk Category IV. Most retail, office, industrial and multifamily buildings are Risk Category II, so 122 mph is the number on the majority of Randolph commercial roofs. The 30 psf flat-roof figure is a floor rather than a ceiling. The code directs you to use the larger of the table value or the load calculated for your roof, and parapets, roof steps and rooftop units add drift and sliding surcharge above it.

    Randolph gets less snow than Worcester. Does that make the roof cost less?

    No, because the governing number is different. Worcester carries a 50 psf ground snow load against Randolph’s 35, so a Worcester roof is a snow problem first. Randolph’s design wind speed is 122 mph at Risk Category II against Worcester’s 117, so a Randolph roof is a wind problem first. Wind sets the membrane attachment method, the fastener density in the perimeter and corner zones, the edge metal gauge and the termination detail. A contractor who works mainly inland and carries a snow-led spec into Randolph is solving the wrong problem.

    What changed for Randolph commercial buildings on 1 January 2026?

    The Stretch Energy Code took effect. Randolph Town Council adopted Council Order 2025-044 on 11 August 2025 by a 6 to 0 vote, adding Section 83-4 to Chapter 83 of the Town Code. It adopts 225 CMR 22 and 23, excluding Appendices RC and CC, and it is enforceable in Randolph by the Building Commissioner. The effective date is 1 January 2026. Randolph adopted late compared with most of Massachusetts, so any commercial roofing page or proposal templated before that date describes an energy code the town no longer runs on.

    Can we put a new membrane over the roof we already have?

    Sometimes, and it is a code question rather than an opinion. Under Section 1512 of the 2021 International Building Code as adopted in Massachusetts through 780 CMR, a recover is not permitted where the existing roof is water-soaked or has deteriorated past serving as a base, where the covering is slate, clay, cement or asbestos-cement tile, or where the roof already carries 2 or more applications. You get 1 recover in the life of a roof. Nobody can count the layers from the ground, which is why a core cut goes in before the quote.

    Does a Randolph reroof have to bring the insulation up to current code?

    A replacement does. A recover does not. That distinction moves a commercial roof budget further than the membrane choice, and since 1 January 2026 it sits inside the Stretch Energy Code rather than the base code. Massachusetts is climate zone 5, where R-30 continuous above the deck is the benchmark for insulation entirely above a low-slope commercial deck. A membrane-only recover over thin or wet existing foam is the first argument you will have with the Building Department. We confirm the applicable path with Randolph Inspectional Services before quoting rather than assuming it.

    Do we need a permit for a commercial reroof in Randolph?

    A tear-off or a recover does. A patch may not. The Town of Randolph publishes an exemption list that includes ordinary repairs which do not affect structural integrity, and it names “Roof; a portion of damaged shingles” as an example. Permit applications are filed online through PermitEyes. Inspections are not booked online, and that catches people out. The town asks you to call before 9:00am, and the Building Inspector runs Tuesday, Wednesday and Friday, so a Monday or Thursday inspection is not available. The Building Department is at 41 South Main Street on the second floor, open Monday to Friday 8:30am to 4:30pm.

    Will Mass Save help pay for new roof insulation on our building?

    Almost certainly not, and this is worth knowing before it lands in a budget. The Mass Save commercial weatherization incentives apply to facilities of 20,000 square feet or less, they cover conditioned space only, and unconditioned or semi-conditioned space including warehouses and storage is excluded. The covered measures are attic insulation, exterior wall insulation, basement insulation and air sealing with door weatherstripping. Roof and roof-membrane insulation is not on the list at any building size. Buildings above the 20,000 square foot threshold go to custom incentives measured in kWh or therms, which is a different application and a different timeline.

    What is the newest commercial roof in Randolph built out of?

    The speculative warehouse ARCO National Construction completed for Bluewater Property Group on Randolph Road publishes its assembly: a 60-mil JM TPO roof system with R-30 insulation and a Rhinobond induction heat-welded attachment system, on a 120,000 square foot building with 32-foot clear height, 54-foot column spacing and 22 dock positions. That is a useful local benchmark to hold a bid against. Induction welding attaches the membrane to plates fastened through the insulation, with no fasteners driven through the finished membrane, which is an attachment answer to a wind problem rather than a snow one.

    Can you repair our roof without shutting down the business?

    Almost always. Most membrane repairs happen entirely on the roof with no interior access. On replacements we stage the work in sections, set crane and delivery windows against your operating hours, and keep entrances, loading docks and HVAC service running. Tenants and staff get notice before anything loud happens. Buildings off Route 24 and I-93 with active dock schedules get the staging plan written around the dock hours rather than the other way round.

    Do you provide documentation for owners, managers and boards?

    Every inspection and repair produces a dated, photo-documented report: current condition, work performed, what to watch, and a replacement horizon for capital planning. Boards use it for reserves, managers use it for budgeting, and the dated pre-storm photos are what an insurer looks at when a storm claim gets argued. Reports are written in plain English so they can be forwarded to a board or an owner without translation.

    Get The Randolph Numbers On Your Estimate.

    Call Now (617) 631-5435
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