Commercial Roof Installation: New Roof Installation In Long Island and NY

Commercial Roofing Solutions for Local Businesses

There's No Substitute for County Roofing

Installing a new commercial roof represents a significant investment in your property’s future. Unlike roof repairs or replacements, new roof installations occur during construction of new buildings or major facility expansions.

These projects demand precise planning, expert execution, and coordination with general contractors and other trades. Every detail matters from day one.

County Roofing Systems has completed hundreds of new commercial roof installations throughout Long Island and Westchester County. We work on projects ranging from small office additions to large industrial complexes. Our expertise ensures your new roof integrates seamlessly with building design while providing decades of reliable protection.

New construction roofing requires different approaches than replacement projects. Building designs must accommodate roof systems from the structural engineering phase forward.

Material selection, insulation specifications, and drainage planning all occur before the first roof deck board is installed.

County Roofing Systems brings over 35 years of construction experience to guide these critical early decisions.

50-Year Material, 25-Year Labor Guarantee

We’ve met the toughest requirements in the residential roofing industry- and we use only the best materials.

That’s why we stand behind our work with the best guarantee in the industry– including warranties only 2% of roofing companies can offer.

Your house deserves the best roofing warranty on the market. Give us a call today and get a brand new roof with a 50-year material, 25-year labor warranty from the best roofing contractor in Long Island and New York.

Why Choose County Roofing?

Here’s why Long Island and NYC Businesses chooses us.

We’re certified installers of premium commercial roofing systems and bring deep expertise in the roofing industry

Our team holds manufacturer certifications from industry leaders including GAF, CertainTeed, Firestone, and Carlisle. These certifications give you access to extended warranties that protect your property investment. More importantly, they prove our installers follow strict quality standards. A successful commercial roof installation depends largely on the contractor you hire. It’s crucial to ensure that the contractor you choose is licensed and insured.

Our commercial roofing projects are completed on time and within budget

We provide detailed project timelines before work begins. Our crews show up when scheduled and complete installations efficiently. Construction delays cost money. We understand the importance of keeping projects on schedule.

We handle all permits, inspections, and code compliance

Nassau County, Suffolk County, and Westchester County each have specific building codes for commercial roofing. We know these regulations and ensure your project meets all requirements. New construction faces rigorous inspections. Our work passes every time.

Roofing Services

When They Need a Qualified Roofer- Long Island and NY Businesses Rely on County Roofing

Exceptional Workmanship, Lasting Results

New commercial roof installations involve complex coordination between multiple construction phases. We provide complete roofing services from initial planning through final inspections, ensuring seamless integration with overall construction schedules.

County Roofing Systems has over 35 years of experience installing commercial roofing systems throughout Long Island and Westchester County. We’re not a national franchise that treats every building the same. We’re local roofing contractors who understand the specific challenges facing commercial properties in our region. A properly installed commercial roof is essential for protecting your business and ensuring the continuity of your operations

Designed for Long Island and NYC's Unique Climate

Commercial buildings throughout Long Island typically feature flat or low-slope roofs that require specialized membrane systems. Flat roofs are a popular choice for many commercial properties due to their low cost and easy accessibility.

TPO, PVC, and EPDM single-ply membranes are among the common roofing materials that provide reliable waterproofing for these applications. We help building owners select the best roofing material options that balance initial costs with long-term performance and suit different climate needs.

Metal roofing systems offer exceptional longevity for buildings with sloped roof designs. Standing seam metal roofs resist wind uplift, shed snow effectively, and require minimal maintenance over 40+ year life spans. They’re ideal for industrial buildings, warehouses, and commercial facilities requiring durable roofing.

We engineer roof systems specifically for Long Island’s climate conditions, taking into account all elements such as wind uplift ratings, design, and local weather. Wind uplift ratings must meet or exceed local building code requirements. Insulation specifications account for both summer cooling and winter heating demands. Drainage systems handle the heavy rainfall that coastal areas experience.

Our installations include proper ventilation to prevent moisture buildup and extend roof life spans. Adequate ventilation prevents condensation on roof decks that causes rust and deterioration. This attention to detail ensures your new roof performs optimally from the start.

New Roof Installation

The commercial roof installation process is a comprehensive set of steps that ensures durability and performance.

It typically begins with the removal of the old roof, followed by repair or replacement of the roof substrate as needed. This is essential to address any underlying issues and provide a solid foundation for the new roofing system. The installation process typically includes the removal of old roofing materials, repair or replacement of the roof substrate, and installation of new roofing materials.

New roof installations follow specific sequences coordinated with other construction phases. Roof decks must be installed before roofing can begin. HVAC curbs, vents, and penetrations need to be in place. We coordinate with general contractors to ensure all prerequisites are complete before our crews arrive.

Insulation installation occurs first, following deck completion. We install tapered polyiso insulation systems that create positive drainage toward roof drains. Proper slopes prevent ponding water that causes premature roof failures.

Membrane installation proceeds systematically across roof sections. TPO and PVC membranes are mechanically fastened or fully adhered depending on wind uplift requirements. Heat-welded seams create watertight barriers stronger than the membrane material itself.

Detail work around penetrations, edges, and equipment curbs requires specialized expertise. These areas are most prone to leaks if improperly installed. Our crews follow manufacturer specifications precisely to ensure every detail is watertight.

Repair services are also available during installation to address any unexpected issues and ensure the integrity of the finished roof.

The Best Roofing Materials In the Industry

Successful commercial roof installations begin long before construction starts. We work with architects, engineers, and general contractors during the design phase to ensure roof systems meet all project requirements.

Our design consultations address critical factors that influence roofing decisions, such as climate, building size, budget, and compliance with building codes. Drainage locations, equipment curb placements, and structural support requirements all need early planning.

Building size is a key factor, as larger buildings may require different materials and systems to ensure optimal performance and cost-effectiveness. Making these decisions during design prevents costly changes during construction.

We provide recommendations for the right materials based on building use, budget constraints, and owner preferences. Selecting the right materials ensures compliance with codes and meets project specifications, helping to avoid future issues.

A medical office requires different roofing than a warehouse. We match roof systems to specific building requirements. Factors influencing the cost of commercial roof installation include the type of roofing material, the size of the building, and the complexity of the installation process.

Value engineering helps owners maximize their roofing budgets. We identify opportunities to reduce costs without sacrificing quality or longevity. Sometimes alternative materials or installation methods deliver equivalent performance at lower prices.

0% Financing, Quick and Easy Approval

With nearly four decades serving homeowners under our belt, we know what’s needed to make your roofing project a success.

When you work with County Roofing, you get only the best. As little as 0% interest on approval for 5 years, quick approval, easy pay, and all backed by the best guarantees in the industry.

Insulation Specifications and Energy Performance

Proper Insulation Systems with County Roofing

Commercial roof insulation significantly impacts building energy consumption and occupant comfort. Proper insulation reduces heating and cooling costs while maintaining consistent interior temperatures.

County Roofing Systems helps building owners select insulation systems that balance performance with budget constraints. We explain options clearly so you can make informed decisions.

R-Value Requirements

Building codes specify minimum insulation R-values for commercial roofs. These requirements vary based on climate zones and building uses.

Long Island falls in climate zone 4A, which requires R-20 minimum for most commercial buildings. This baseline provides adequate thermal protection.

However, energy-efficient designs often exceed code minimums. R-30 insulation reduces energy costs substantially compared to R-20 installations.

The additional insulation cost is recovered through lower utility bills within 3-5 years. Long-term savings justify higher upfront investment.

We help building owners determine optimal insulation levels based on energy modeling and budget constraints. Sometimes exceeding code minimums makes excellent financial sense. Other times, code-minimum insulation is appropriate.

Insulation Material Options

Polyisocyanurate (polyiso) insulation provides the highest R-value per inch of common roofing insulations. R-6+ per inch means less total thickness needed to achieve target R-values. This saves roof height and reduces overall system costs.

Expanded polystyrene (EPS) insulation costs less than polyiso but provides lower R-values per inch. EPS works well in budget-conscious projects where roof height isn’t constrained.

The material resists moisture absorption and remains stable over decades. It’s a proven performer for cost-effective installations.

Extruded polystyrene (XPS) offers properties between polyiso and EPS. It provides good R-value, moisture resistance, and compressive strength. XPS works well for roofs supporting heavy equipment or frequent foot traffic.

Thermal Bridging Prevention

Fasteners, penetrations, and seams create thermal bridges where heat escapes through insulation. Multiple insulation layers with staggered joints minimize these thermal bridges.

We install insulation in at least two layers with offset seams. This prevents continuous paths where heat can bypass insulation. The result is more consistent thermal performance across entire roof surfaces.

For mechanically fastened membrane systems, we ensure adequate insulation coverage over fastener plates. This prevents thermal bridging at thousands of fastener locations.

Attention to these details maximizes energy efficiency. Small improvements compound into significant savings.

Material Selection for New Commercial Roofs

The Best Commercial Materials In the Industry

Choosing appropriate roofing materials is one of the most important decisions for new commercial buildings. Material selection affects initial costs, long-term maintenance requirements, energy efficiency, and building aesthetics.

County Roofing Systems helps building owners evaluate options and select systems that match their specific requirements. We explain the advantages and limitations of each material clearly.

Single-Ply Membrane Systems

TPO (thermoplastic polyolefin) has become the most popular choice for new commercial flat roofs. White TPO membranes reflect solar radiation, reducing cooling costs by 20-30%.

The material resists UV damage, ozone exposure, and chemical contact. It’s proven reliable across millions of commercial installations.

TPO is available in various thicknesses from 45 mil to 80 mil. Thicker membranes provide better puncture resistance and longer life spans but cost more. For most Long Island commercial buildings, 60 mil TPO offers optimal durability and value.

PVC (polyvinyl chloride) roofing provides premium performance for buildings with demanding requirements. PVC excels in environments with chemical exposure, grease, or heavy rooftop traffic.

The material remains flexible in cold temperatures and resists punctures better than TPO. It costs more than TPO but delivers superior longevity.

EPDM (ethylene propylene diene monomer) rubber roofing offers proven performance at lower costs than TPO or PVC. Black EPDM absorbs heat, making it less suitable for air-conditioned buildings.

However, white EPDM formulations provide reflectivity comparable to TPO. This material works well for unconditioned warehouses and storage facilities.

Metal Roofing Options

Standing seam metal roofing delivers exceptional longevity for commercial buildings with sloped roof designs. Aluminum and steel panels interlock to create watertight systems that resist wind uplift exceeding 150 mph.

Metal roofs shed snow and ice effectively, preventing dangerous accumulations. This matters for Long Island buildings that experience heavy winter storms. Metal’s smooth surface allows snow to slide off rather than building up on roof surfaces.

Color options for metal roofing include reflective finishes that reduce solar heat gain. Light-colored metal roofs provide energy efficiency benefits similar to white membrane systems.

They’re ideal for warehouses and industrial buildings requiring both durability and efficiency. Metal roofs can last 40-50 years with minimal maintenance.

Modified Bitumen Systems

Modified bitumen roofing consists of asphalt-based materials reinforced with fiberglass or polyester. These systems use multiple layers to create durable, waterproof barriers.

Torch-applied or self-adhered installation methods accommodate different building requirements. Self-adhered systems work better for buildings where open flames aren’t permitted.

Modified bitumen performs well in cold climates where flexibility matters. The material remains pliable during Long Island’s harsh winters. It’s particularly suitable for buildings requiring exceptional durability and proven performance.

SBS (styrene-butadiene-styrene) modified bitumen offers superior cold-weather flexibility. APP (atactic polypropylene) modified bitumen provides excellent heat resistance.

We help building owners select appropriate formulations for their specific needs. Both types deliver reliable performance when properly installed.

Going the Extra Mile: Quality Control and Final Inspections

Discover the County Roofing difference.

Rigorous quality control ensures new commercial roofs perform as designed, whether it’s a new commercial roof installation or a full roof replacement. County Roofing Systems implements comprehensive inspection processes throughout every installation phase.

Choosing a reputable roofing contractor is essential for quality installation and long-term performance. When selecting a commercial roofing contractor, always read reviews and ask for references to ensure reliability and expertise. Researching local contractors can also provide valuable insights into their knowledge of specific climate conditions and building codes.

Cutting corners during installation creates future problems. We invest the time necessary to verify every detail.

In-Progress Inspections

We conduct quality checks during each installation phase. Deck preparation, insulation installation, and membrane application all receive thorough inspections before subsequent work begins.

This catches problems immediately when corrections are easiest. Waiting until projects are complete makes fixes expensive.

Our project managers visit sites daily during active installation. They verify work quality, coordinate with other trades, and address any issues promptly. Problems don’t wait until final inspections to be discovered.

Manufacturer representatives inspect critical installation phases on projects with NDL warranties. These third-party inspections verify compliance with manufacturer specifications.

Successfully passing these inspections is required for full warranty coverage. We schedule these inspections at appropriate project milestones.

Seam Testing

Every seam on TPO and PVC roofs must be tested to verify watertight integrity. We use probe tools that detect improper welds or gaps in seam bonds.

Seams that fail testing are repaired immediately before installation proceeds. No compromises are acceptable.

Automated welding equipment produces consistent, high-quality seams. However, testing remains essential to catch occasional problems. Our zero-tolerance policy for seam failures ensures reliable waterproofing.

Detailed seam testing documentation provides quality records for warranty registration. Manufacturers require proof that installations meet their standards. Our comprehensive testing records satisfy these requirements.

Final Inspections and Documentation

Before considering projects complete, we conduct final inspections of entire roof systems. Every penetration, edge detail, and seam receives verification.

Drainage systems are tested to ensure proper water flow. Water must flow correctly or we haven’t finished our job.

We provide building owners with complete installation documentation. This includes material certifications, warranty paperwork, installation photos, and testing records.

These documents are essential for warranty claims and future maintenance. Proper documentation protects your investment.

Building inspectors conduct final reviews before issuing certificates of occupancy. Our installations consistently pass these inspections because we follow all code requirements. Buildings can be occupied on schedule without roofing-related delays.

Long Island and NYC's Go-To Roofing Contractor

Keith Schmied has built his reputation on delivering exceptional commercial roofing services throughout Long Island and the greater New York area.

For over 35 years, he’s led County Roofing Systems as the region’s most trusted commercial roofing contractor.

Keith’s experience spans hundreds of commercial projects. He’s installed roofs on office buildings, warehouses, multi-family properties, and hospitality facilities from Manhattan to Montauk.

County Roofing Systems holds elite manufacturer certifications from GAF, CertainTeed, Firestone, and other industry leaders.

These certifications aren’t easy to earn. Only the top 1% of roofing companies qualify. This distinction gives our clients access to the best warranties and materials available.

We’re also a local, family-owned business. Keith lives and works in the communities we serve. He understands Long Island and NYC’s weather patterns, building codes, and business climate.

When you hire County Roofing Systems, you’re working with neighbors who care about our region’s commercial properties. We have a vested interest in protecting buildings where we live and work.

Our commercial roofing crews are experienced professionals as well, not subcontractors. Every installer is a member of the County Roofing Systems team and they receive ongoing training on the latest materials and techniques.

This ensures consistent quality across every project. You won’t get different crews with varying skill levels.

Finally, we stand behind our work with industry-leading warranties. Manufacturer warranties protect against material defects for 15-30 years. Our workmanship warranties guarantee proper installation.

Keith and his team have protected Long Island businesses for over three decades. We’ve built our reputation one roof at a time, and we’re committed to maintaining the highest standards in the commercial roofing industry.

When your property needs roofing services, County Roofing Systems delivers the expertise and reliability you deserve.

Click below or call us today for a free estimate to get started on your commercial roofing project today:

Fast & Easy Financing with County Roofing

Financing your commercial roofing project has never been easier.

With County Roofing, you can get fast approvals with as low as 0% financing on new roofing projects for up to 15 years, with payments as low as $149:

First Approvals
0% financing
No income check
Up to 15 years
Monthly payments as low as $149

Fill out the form below or give us a call at (631) 400-7663 today to get started:

Call or contact us today for your free commercial roofing services estimate.