Leaks Where Shop Meets Office
Inside The Building
Water runs down the wall between the shop and the front office.
On The Roof
Torn flashing at the joint where pitched metal meets flat membrane.
Service Area
Dyer Commercial Roofing Contractor
Metal Or Membrane: Which Roof Fits Your Building's Slope?
As a Dyer commercial roofing contractor, we install metal roofs on pitched shops and membrane on flat offices, often on the same property, joined with flashing that holds.
Dyer Buildings
Commercial Roofing For Dyer Shops And Offices Together
Dyer commercial roofing often covers two slopes on one property, each needing its own system.
A typical lot pairs a pitched steel shop or storage building with a flat-roofed office in front. The shop takes metal panels; the office takes TPO or EPDM. One scope covers both.
The joint where the two roofs meet is where leaks start, so it gets its own flashing detail, sized so the metal can move without tearing the membrane.
- System chosen by each roof slope
- Custom flashing where metal meets membrane
- One scope covering every building on the lot
Roof Symptoms
Dyer Commercial Roofing Signs On Mixed Buildings
Mixed properties leak at the joints between roof types as often as in the fields.
Metal Roof For A Commercial Shop Wearing Out
Inside The Building
Drips fall in rows across the shop floor after rain.
On The Roof
Backed-out screws and open laps on an aging screw-down panel roof.
Flat Roof On An Office Building Ponding
Inside The Building
Office ceilings stain near the middle of the building.
On The Roof
Ponding where the flat roof never drained toward its scuppers.
Snow Sliding Onto The Office Roof
Inside The Building
Bangs on the office ceiling during thaws, then new leaks.
On The Roof
Snow sheeting off the higher metal roof onto the membrane below.
Rust Along The Shop Eaves
Inside The Building
Orange streaks run down the shop wall below the gutter line.
On The Roof
Rusted panel ends and gutters at the eave where snowmelt sits through winter.
What Changes
What Matched Commercial Roofing Changes On A Dyer Property
Matching the roof system to the slope fixes the leaks that come from forcing one system onto both.
Matching The Roof System To The Slope
Metal sheds water fast on the pitched shop while membrane seals the flat office, so each roof gets the system its slope calls for.
A Joint That Moves
The flashing between metal and membrane lets panels expand and contract without tearing the flat roof, which ends the wall leaks between buildings.
Snow Kept Off The Lower Roof
Snow guards on the metal roof hold snow above the office, so sliding sheets stop crushing the membrane below.
One Scope For The Lot
Both buildings are priced and scheduled together, so crews move from shop to office without a second mobilization.
Roof Systems
Commercial Roofing Systems For Dyer Properties
Each roof on the lot gets the system that suits its slope.
TPO Roofing
- Roof Slope
- Flat to low slope
- Seams
- Heat-welded
- Color
- White, reflective
White membrane for flat office and retail roofs in Dyer, welded into one sheet and tied into the shop flashing.
TPO Roofing details →
EPDM Roofing
- Roof Slope
- Flat to low slope
- Seams
- Taped and primed
- Color
- Black rubber
Rubber membrane for small flat offices and additions where the roof has few penetrations.
EPDM Roofing details →
Industrial Roofing
- Roof Slope
- Flat, low, or pitched
- Built Around
- Stacks, curbs, fans
- Traffic
- Pads to every unit
Heavier systems for Dyer production shops with exhaust fans and frequent rooftop service.
Industrial Roofing details →
Commercial Metal Roofing
- Roof Slope
- Low to steep pitch
- Panels
- Standing seam or screwed
- Over Flat Roofs
- Retrofit framing
Standing-seam or screw-down panels on pitched shops and storage buildings, with snow guards over lower roofs.
Commercial Metal Roofing details →Water Running Down The Wall Between Buildings?
Call and describe where it shows up. The joint between roofs gets checked first.
Call Usor call (219) 389-4868
How The Work Runs
How A Two-Roof Property Gets Done
Every Dyer mixed-roof job follows these four stages.
Walk Both Roofs
The shop and office roofs are walked, panels and laps checked, cores cut on the flat roof, and the joint between them inspected.
Pick A System Per Slope
Metal for the pitched roof, membrane for the flat one, and a flashing detail for the joint, all written into one scope.
Roof The Higher Building First
The metal roof goes on first so debris and snow guards are set before the lower membrane is installed.
Flash The Joint And Walk It
The joint flashing is finished last, and both roofs are walked with you before the crew leaves the lot.
Nearby Towns
Nearby Towns We Serve From Dyer
We roof buildings in these towns as well. Not on the list? Call us or send us a message.
Plants, Mills, And Warehouses
- Hammond
Home base: plants, rail warehouses, church halls, and offices.
- Gary
Large warehouse and industrial roofs replaced section by section.
- East Chicago
Plant roofs crowded with stacks, fans, and curbs.
Offices And Medical Buildings
- Munster
Office and medical roofs over people working all day.
Storefronts And Shops
- Highland
Shopping-strip roofs shared by several storefront tenants.
Quick Answers
Commercial Roofing Questions From Dyer Owners
Do you install metal and single-ply roofs on Dyer commercial buildings?
Yes, both
Yes. Metal panels go on pitched shops and storage buildings, and TPO or EPDM goes on flat office and retail roofs in Dyer. Each job opens with a check of the deck, drainage, and flashing.
Can one contractor roof both the shop and the office?
Yes, one scope
One crew can. Both roofs go on one scope with a line for each building and one for the joint between them, so the whole lot is handled together.
Why do leaks start where two roofs meet?
Movement at the joint
Metal expands and contracts more than the flat roof beside it, and snow slides off it onto the lower roof. A joint flashed for that movement holds; a rigid one tears.
Do snow guards help a lower roof?
Yes, they hold snow
Guards on the upper metal roof hold snow in place until it melts, so sheets stop sliding onto the office membrane and crushing it.
Is metal or membrane cheaper for a small flat roof?
Membrane, most often
For a small flat roof, a membrane usually costs less than adding retrofit framing for metal. Metal over a flat roof pays off when ponding has kept returning for years.
Can an old shop roof get new metal over the existing panels?
Sometimes, with spacers
Where the old panels and purlins are firm, a new metal roof can go over them on spacer framing that adds room for insulation. Rusted or loose panels come off first so the new roof has a solid base.
Do office and shop roofs need separate permits?
Ask the town office
That depends on how the town treats the project. Some building offices permit the whole property at once and others by building, so the step is confirmed with the town for the address before work is scheduled.
What roof goes on a small flat office addition?
TPO or EPDM
A small flat addition usually takes TPO or EPDM over tapered insulation, flashed up the wall of the taller building beside it. The membrane choice follows drainage and how often anyone walks that roof.
Hire A Dyer Commercial Roofing Contractor
Send the address and a note on both roofs, and we will set up the visit.