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Duarte Torch Down Roofing
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RESIDENTIAL • COMMERCIAL • ALL ROOF TYPES
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BUILT FORSouthern California
Professional torch down roofing — stronger roofs for a safer tomorrow
Our 2-ply Polyfresko torch down roofing systems provide long-lasting, waterproof protection for flat and low-slope roofs. Designed for durability and performance, this system is ideal for residential, multi-family, HOA and commercial buildings across Duarte, Los Angeles and Southern California. Waterproof protection, durable and long lasting, UV and heat resistant, ideal for flat roofs, professional installation.
IDEAL FOR MULTIPLE PROPERTY TYPES
RESIDENTIAL HOMES
APARTMENTS & HOAs
COMMERCIAL BUILDINGS
LOW-SLOPE ROOFS
BEFORE & AFTER
DUARTE, CA
Torch Down Roofing
Two Plies, Welded Seams, No Guesswork.
Torch down roofing in Duarte is modified bitumen, installed in two plies and heat-welded as it goes down: a base sheet torched to the prepared deck or cover board, then a white Polyfresko cap sheet over it. The seams fuse instead of relying on adhesive, which is why the system holds up on flat and low-slope roofs that see standing water.
All American Roof Repair & Commercial Roofing installs and repairs torch down on houses with flat sections, apartment buildings, HOA property, offices and light industrial across Duarte, Tujunga, Shadow Hills, Lake View Terrace and the northeast San Fernando Valley.
Why Flat Roofs in Duarte Fail
Duarte sits in a bowl at the foot of the Verdugo and San Gabriel Mountains and it bakes. A dark flat roof here runs far hotter than the air, the daily swing works every lap, and the fall winds drive grit across the surface. Then the rain arrives in short, heavy bursts and finds whatever the summer loosened: a split lap, a lifted edge, a drain that has not been cleared since the last storm.
How We Install It
Tear-off and deck check
The old roof comes off and any soft decking is replaced before a new sheet touches it. You see the bad bays before they are covered.
Insulation or cover board
Where the building wants R-value, polyiso goes down; otherwise a cover board gives the torch a sound, even surface.
Base sheet
The modified bitumen base ply is torched and rolled so the whole sheet bonds, not just the edges.
Polyfresko cap sheet
The white cap ply goes over it, seams welded and probed. White means the roof reflects heat instead of storing it.
Flashings and drains
Curbs, pipes, parapets, edge metal and drains are detailed last, because that is where flat roofs actually leak.
Torch Down vs the Alternatives
- Against a patch. Patching buys months. A two-ply system is a roof, with a manufacturer warranty behind it.
- Against TPO. Both work on flat roofs. Torch down suits smaller, cut-up roofs and buildings with lots of penetrations; TPO suits wide open spans.
- Against a coating. A coating renews a sound roof. If the deck or insulation is wet, torch down replaces it instead of sealing the problem in.
- Against built-up. No kettle, no gravel, and a white surface rather than black asphalt cooking all afternoon.
Straight talk: torch down is hot work. We carry the permits and insurance for it, run a fire watch and keep extinguishers on the roof. Where open flame is not appropriate — a wood deck in poor condition, an occupied building with tight access — we quote a cold-applied or coating system instead and say why.
What We Roof in Duarte
If the roof is flat or low-slope, torch down is on the table:
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Homes with Flat Sections
Additions, garages and mid-century flat roofs where shingles were never the answer.
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Apartments & HOAs
Staged section by section so tenants stay put and the lot stays usable.
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Commercial Buildings
Offices, retail and light industrial, scheduled around your hours.
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Low-Slope Roofs
Shallow pitches where water moves slowly and details decide everything.
Before and After
The same roof, cracked and ponding, then two plies down with a white cap sheet.
Warranty and Lifespan
Installed to spec, a two-ply torch down roof runs twenty years and up, and the manufacturer warranty is written for 10, 20 or 25 years depending on the system we specify. The paperwork is registered in your name, not left in a folder. We check the roof after the first rainy season so small things stay small.
Repairs and Maintenance
Most calls start with a leak over one room. We trace it to the source — a split lap, a failed pipe flashing, a drain that never cleared — repair it and photograph what we found. Two things keep a flat roof going: clear the drains before the rains, and have the flashings looked at once a year.
Serving Duarte and the Foothills
We install and repair torch down throughout Duarte, Tujunga, Shadow Hills, Lake View Terrace, La Crescenta, Sylmar and the rest of the northeast San Fernando Valley. Flat roof work is dry-weather work, so the calendar tightens once the rain starts — call early.
We’ll measure the roof, check the deck, drains and flashings, and tell you whether torch down is the right system.
TORCH DOWN ROOFING DUARTE, CA
THE COMPLETE GUIDE TO
TORCH DOWN ROOFING IN DUARTE
Flat roofs in Duarte fail at the laps and the details, which is why we install torch down in two plies with every seam heat-welded. Up against the hills the wind gets at the edges first, so the perimeter metal and the first course decide how long the roof holds.
How the job runs
- Free inspection with photos of every penetration and drain
- Written scope and price before anything is booked
- Tear-off and deck repair, with bad bays shown to you
- Two plies down, welds probed as the crew goes
- Flashings, drains and edge metal detailed
- Daily clean-up and a final walk with you on the roof
The parts people ask about
You get a text when the crew is coming and a walk-through when they are done.
- Ice-and-water goes in at the valleys and penetrations even though it rarely freezes here.
- The quote lists materials and labour separately so you can see what you are buying.
- Drip edge and starter course get installed properly - that is half the wind resistance.
- You get a start date and a finish date in writing, and we hold them.
Pricing a Duarte flat roof
Price follows square footage, how many layers come off, how much decking needs replacing and how many penetrations the roof carries.
A cut-up roof with ten curbs costs more per square than an open one, because the detailing is the work.
The Duarte version of this job
Roof life in Duarte is decided by exposure more than brand, and the grade means water moves fast and finds every lazy flashing detail. Our shop sits about 16 miles east of Duarte, so a crew is on site the same morning.
Bradbury, Monrovia and Irwindale are on the same route, which keeps follow-ups easy.
- Tile is sorted and reused where it is sound, which keeps the roof looking original.
- Gutters are pulled and refitted where they block a proper drip edge.
- Solar gets detached and reset by a licensed crew, not improvised around.
- Solar panels get detached and reset on a schedule that matches the roofing crew.
- We work around tenants and business hours where the building is occupied.
Book in the dry months and the whole job happens on dry decking. Everything starts with a free inspection and a written number for your Duarte property.
The 2-ply build-up
- Roof deck, repaired where it is soft
- Insulation or cover board, depending on what the building needs
- Modified bitumen base sheet, torched and rolled so the whole sheet bonds
- White Polyfresko cap sheet, seams welded and probed
- Edge metal, curb and pipe flashings detailed last
What you can expect from it
Installed to spec, a two-ply torch down roof runs twenty years and up. The manufacturer warranty is written for 10, 20 or 25 years depending on the system, and we register the paperwork in your name.
Serving Duarte and nearby
We install and repair torch down roofs throughout Duarte and the surrounding Los Angeles County communities, including Bradbury, Monrovia and Irwindale.
What torch down does better
The practical reasons it keeps getting specified here:
- The white Polyfresko cap sheet reflects heat rather than storing it
- Repairs weld into the existing sheet, so a fix becomes part of the roof
- It handles ponding better than a single-layer repair ever will
- Two plies mean a second line of defence over the whole roof, not just the patches
- Heat-welded seams fuse the plies instead of relying on adhesive
When torch down is the wrong call
If the insulation is wet, no membrane fixes that - it comes off first, whatever it costs.
Book a free Duarte inspection
The estimate is free. Call (818) 275-0921 and we will measure your Duarte roof, check the deck, laps and drains, and tell you plainly whether coating is the right call.
What goes wrong when it is done cheap
Dry-season work is cheaper and safer, because the whole job happens on dry decking. Once the first storm is on the ten-day forecast the calendar in Duarte tightens fast, and emergency work costs more than planned work.
Before we quote we check the deck, the ventilation, the flashings and the drainage. Three of those four are invisible from the ground, and all four decide how long the roof lasts.
What this costs in Duarte, honestly
Price follows the roof, not a rate card: access, pitch, material, how many layers come off and what the deck looks like underneath. We measure in person, show you photos and put the number in writing before anything is booked.
FREQUENTLY ASKED
QUESTIONS
Find answers to common questions about torch down roofing in Duarte.
CLEAR ANSWERS. LOCAL EXPERTISE.
DUARTE, CA TORCH DOWN ROOFING
What is the 2-ply Polyfresko system?
A modified bitumen base sheet torched to the deck or cover board, with a white Polyfresko cap sheet over it. The white surface reflects heat instead of holding it.
Is the torch safe around my Duarte building?
We carry the permits and insurance for hot work, run a fire watch and keep extinguishers on the roof. Where open flame is not appropriate we quote a cold-applied or coating system instead.
How much does a new roof cost in Duarte?
Cost depends on the size and pitch of the roof, the material you choose, how many layers come off and what the deck looks like underneath. We inspect the Duarte property, measure it and put a detailed number in writing before anything is booked.
Do you offer any warranty?
You get the manufacturer warranty on the materials and ours on the workmanship, both in writing. The paperwork is registered for you and transfers if you sell.
Is torch down right for a flat roof in Duarte?
For most flat and low-slope roofs in Duarte, yes. Two plies of modified bitumen with heat-welded seams handle ponding and UV far better than patching.
Do you give free estimates in Duarte?
Yes. The inspection and the written estimate are free, including a second opinion if you already have a quote in hand. We photograph what we find and walk you through it.
How long does the work take?
Most single-family roofs in Duarte are done in two to four days once materials are on site. Larger or steeper roofs, or jobs with deck repairs, run longer and we say so up front.
How long does a torch down roof last?
Installed to spec, twenty years and up, with a manufacturer warranty of 10, 20 or 25 years depending on the system.
Duarte Torch Down Roofing — and the five closest cities
We work the same streets around Duarte. If you are closer to one of these, the crew is already there most weeks:
- Bradbury Torch Down Roofing 1 mi
- Monrovia Torch Down Roofing 1 mi
- Irwindale Torch Down Roofing 3 mi
- Arcadia Torch Down Roofing 3 mi
- Baldwin Park Torch Down Roofing 4 mi
We cover Bradbury, Monrovia, Irwindale, Arcadia and Baldwin Park from the same yard as Duarte. We are in these every week, not occasionally.
