Commercial Shingle Roof Replacement That Keeps Your Business Open
Commercial shingle roof replacement by Flat Roofers NY strips your steep-slope roof to the decking and lays new architectural asphalt shingles. Your building stays open while we work.
- Tear-off down to bare decking
- GAF manufacturer warranty on the full system
- Walkways and lot cleaned every day
What goes on your roof, layer by layer
Every commercial shingle roof replacement we do runs in this order. Check any quote against it, along with what to ask a contractor about each layer they list.
| Layer | What we install and why |
|---|---|
| Tear-off | Old shingles stripped to bare decking, so nothing stays hidden. |
| Decking | Soft or rotted boards cut out and replaced. |
| Ice and water shield | Self-adhered membrane at eaves, valleys and every penetration. |
| Underlayment | Synthetic underlayment over the whole deck as backup. |
| Drip edge and flashing | New metal at edges, walls, chimneys and vents. Nothing reused. |
| Shingles | Architectural shingles nailed to the manufacturer's pattern. |
| Ventilation | Ridge vent cut in, attic airflow balanced, gutters reconnected. |
How the new shingles hold up to wind
Older business roofs often carry flat 3-tab shingles that lift in gusts. Architectural shingles are laminated and heavier.
We lay GAF Timberline HDZ. Its warranty covers the whole system only when every layer above goes on to spec.
- 130 mph wind rating.Already lost some? See shingles lifted or torn off by wind.
- 40-year limited manufacturer warrantyon commercial buildings
- Registered in the building owner's name
Storefronts to churches, scheduled around your hours
We tear off and dry in one section a day, then run a magnet over walkways and the lot before we leave.
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Retail storefronts and strip plazas
Entrances stay clear. Loud work happens before you open.
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Restaurants and medical offices
No debris near doors, diners or patients.
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Churches and schools
Work is set around services and the school calendar.
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Apartment and mixed-use buildings
Tenants get notice. Every section is dried in each night.
Three things to settle before the tear-off
Yes, you stay open. The days depend on roof size and what the bare decking shows. Your written quote lists them.
Five signs together mean replacement: curling or missing shingles, granules in the gutters, leaks back after patching, sagging decking, and age past the rated life. Seeing only one or two? Then those damaged shingles may only need a repair.
Not on our commercial jobs. Re-roofing over a worn layer hides rotted decking, adds weight and can void the warranty.
Want a written quote on your shingle roof?
We'll come out anywhere in Queens, inspect the roof, check the decking and ventilation, and price the replacement in writing at no cost.
Call Flat Roofers NY(917) 473-9811Wondering about paying for it? Here are the ways to pay for a commercial roof replacement.