Tag Archive for: Atlanta Commercial Roofing

Parapet Walls for Commercial Flat Roofs

Wondering why there is a wall around your flat roof? Understanding why parapet walls are installed around low-slope roofing systems will give you crucial insight to their function and necessity.

Parapet walls for low slope roofing systems

The professional roofers at New Image Roofing Atlanta assembled a comprehensive guide to parapet wall design, height, necessity, and waterproofing.

What is a Parapet Wall?

A parapet is a barrier that is an upward extension of a wall at the edge of a roof (seen in many flat roofing projects). This extension projects above the flat roof (can vary in height and width according to local building codes and its designed function). The word comes ultimately from the Italian parapetto.

Parapet Wall Design

A plain parapet wall is a simple vertical extension of the wall on the building’s outside. They are most common in commercial buildings without ornate decoration (it can be difficult to tell where parapet walls start looking from the building’s outside). They are generally more about functionality than design. Consider the following:

Purpose and Functionality – Parapet walls serve various functions for flat roofs, acting as aesthetic and functional elements. They provide a barrier that conceals rooftop equipment, helps prevent falls, and enhances the overall appearance of the building. Additionally, parapet walls are a crucial line of defense against water ingress, a common concern with flat roofs.

Parapet walls are used to hide rooftop equipment and machinery

Aesthetic Considerations – From a design perspective, parapet walls contribute significantly to the visual appeal of a building. Architects often use them to create a uniform and pleasing silhouette, giving the structure a more finished and polished look. Parapets also offer opportunities for architectural creativity, with options for different materials, textures, and decorative elements.

Parapet Wall Height

Parapet walls are installed on flat roofs for safety

Local building codes often determine how and when parapet walls should be constructed on commercial structures.

Building Codes and Safety – Determining parapet wall optimal height is a nuanced process that involves adherence to building codes and safety regulations. Building codes typically mandate minimum parapet heights to ensure occupant safety and prevent accidents. The International Building Code (IBC) and other regional codes provide guidelines on parapet wall heights based on factors like building occupancy, roof usage, and fire safety.

Read more about parapet wall specifications at codes.iccsafe.org/s/IBC2021P2/chapter-7-fire-and-smoke-protection-features/IBC2021P2-Ch07-Sec705.11

Wind Uplift Considerations – Parapet wall height is not solely about aesthetics and safety (it plays a crucial role in mitigating wind uplift forces). Tall parapets can act as a windbreak, reducing the impact of strong winds on the roof and preventing damage to roofing materials. Engineers must consider local wind patterns and calculate the appropriate parapet height to optimize wind resistance.

When Are Parapet Walls Necessary

Parapet walls are mainly found on flat roofs, extending a vertical wall at the side of a commercial, industrial, or residential structure past the roofline. Flat or low-slope roofing systems include:

Parapet walls are typically required when the roof must double as something like a terrace, balcony, facilities area, lounging area, or walkway, helping keep the area safe.

Parapet walls promote safety on walkable roofs

Roof Access and Safety – Parapet walls become essential when rooftop access is necessary for maintenance, service, or other activities. They provide a protective barrier, considerably reducing accidental fall risks. OSHA (Occupational Safety and Health Administration) regulations often require the presence of parapet walls or other protective measures when employees work on flat roofs.

Read more about OSHA’s fall protection system criteria at osha.gov/laws-regs/regulations/standardnumber/1926/1926.502

Water Management – In regions with heavy rainfall or potential for flooding, parapet walls play a crucial role in:

  • Managing water runoff
  • Preventing water from cascading off the roof’s edge
  • Reducing erosion and water damage to the building’s foundation and landscape

Properly designed parapets incorporate drainage systems to efficiently guide water away from the roof surface.

Concealing Rooftop Equipment – Flat roofs often house HVAC units, solar panels, and other equipment or activities necessary for building functionality. Parapet walls offer an effective solution for concealing these elements, maintaining a clean and uncluttered appearance while providing easy access for maintenance.

Waterproofing Parapet Walls

Parapet walls use flashing to prevent leaks

Like your roofing system, parapet walls must repel and shed water efficiently. Parapet walls that allow water infiltration will lead to costly structural damages.

Flashing and Sealants – Effective waterproofing is paramount for parapet wall longevity and performance.

  • Flashing (water-resistant material) is installed at the roof and parapet junction to create a watertight seal
  • Sealants are used to fill gaps and joints, preventing water infiltration

Cap Flashing – Cap flashing is an essential parapet waterproofing component (metal flashing installed at the parapet wall’s top, extending over the roof membrane). Cap flashing prevents water from seeping into the joint between the parapet and the roof, offering an additional protective layer against leaks.

Parapet walls use metal caps and flashing to prevent water infiltration

Proper Drainage – Adequate drainage prevents water buildup on flat roofs and parapet walls. Scuppers (openings in the parapet that allow water to drain) are commonly used with conductors, gutters, and downspouts to ensure efficient water management. Regular maintenance, including clearing debris from scuppers, is crucial for the effectiveness of the drainage system.

Parapet walls drain water with scuppers conductor heads and downspouts

Read more about roof maintenance plans

Quality Materials and Construction – Choosing durable and weather-resistant materials for parapet walls is fundamental to their long-term waterproofing. Consider the following:

  • High-quality masonry, metal, or composite materials ensure durability and safety
  • Professional construction practices, contribute to the parapet wall resilience against water intrusion
  • Expert roof installation will ensure that parapet walls are protected and efficiently drain water

Tip: Thoroughly vet all of your contractors, verifying their credentials, past work, licenses, and insurance before contracting them.

Parapet Walls for Flat Roofs

In this article, you discovered crucial information about parapet wall design, height, necessity, and waterproofing for your commercial or residential low-slope roofing system.

Installing parapet walls around flat or low-slope roofing systems ensures occupant safety, building aesthetics, and supports effective water management.

Ignoring the need for parapet walls may leave your roof vulnerable to accidents and expose unsightly machinery or equipment on the rooftop, potentially decreasing your structure’s curb appeal and value.

Sources:
osha.gov/laws-regs/regulations/standardnumber/1926/1926.502
theconstructor.org/building/parapet-walls-types-uses/28646
codes.iccsafe.org

  New Image Roofing Atlanta

    2020 Howell Mill Rd NW Suite 232
Atlanta, GA 30318
(404) 680-0041

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5 Commercial Metal Roof Types – Pros & Cons

Are you seeking a durable and resistant roofing system for your commercial structure? Knowing the types of metal roofing and their pros and cons will guide you to a well-informed decision when installing or replacing your roof.

Durable metal roofing systems

The professionals at New Image Roofing Atlanta gathered essential information about 5 types of commercial metal roofs, their advantages and disadvantages, and their expected lifespans and maintenance needs. Consider the following metal roofing systems:

Corrugated Metal Roofs

Corrugated metal commercial roofing systems

Corrugated metal roofing systems are characterized by their wavy or rippled pattern. This metal roofing type is often used in agricultural and industrial structures. However, its versatility has led to its use in commercial buildings.

Pros:

  • Cost-Effective – Corrugated metal roofing is generally more affordable compared to other types.
  • Quick Installation – The large, lightweight panels facilitate a faster installation process.
  • Durability – Corrugated metal is resistant to harsh weather conditions, like hail and heavy snow.

Metal roofing systems can be quickly installed

Cons:

  • Aesthetic Limitations – Some may find the industrial appearance less appealing for some commercial applications.
  • Noise – Rain and hail can create noise on corrugated metal roofs. Additional insulation or underlayment can help mitigate this issue.

Lifespan and Maintenance – With proper installation and maintenance, corrugated metal roofs can last over 30 years. Maintenance involves periodic inspections for:

  • Rust
  • Loose fasteners
  • Penetration boots and seals

Standing Seam Metal Roofs

Standing seam metal roofing systems

Standing seam metal roofing systems feature vertical panels with raised seams connecting adjacent panels. These roofs are known for their sleek, modern appearance and are commonly installed on commercial and residential structures.

Pros:

  • Weather Resistance – Standing seam roofs offer excellent resistance to rain, snow, and high winds.
  • Long Lifespan – One of the longest-lasting roofing options, with a lifespan exceeding 30 years.
  • Energy Efficiency – Reflective coatings and the ability to accommodate solar panels contribute to its energy efficiency.

Cons:

  • Installation Complexity – Requires skilled professionals for proper installation, which can increase initial costs.
  • Cost – Initial costs are higher compared to some other metal roofing options.

Lifespan and Maintenance – Standing seam metal roofs have an impressive lifespan of 30-50 years. Regular maintenance involves checking for:

  • Loose fasteners
  • Damaged panels
  • Potential sealant issues

Metal Shingle Roofs

Commercial roofing system composed of metal shingles

Metal shingle roofs mimic traditional asphalt shingles but offer metal’s durability and longevity. They come in multiple styles, including wood, slate, and tile aesthetics.

Pros:

  • Aesthetic Versatility – Metal shingles can replicate the look of other roofing materials, providing diverse aesthetic options.
  • Lightweight – Lighter than other metal roofing types, reducing the structural load.
  • Durability – Resistant to fire, rot, and insects, with a long lifespan.

Cons:

  • Cost – Metal shingle roofs can be significantly more expensive than traditional asphalt-shingle roofs.
  • Installation Complexity – Like standing seam roofs, professional installation is recommended.

Lifespan and Maintenance – Metal shingle roofs can last 30 years or more. Regular inspections are crucial to address loose or damaged shingles and ensure proper sealing around flashing and penetrations.

Metal Tile Roofs

Metal tile commercial roofing systems

Metal tile roofing systems combine traditional tile roofing elegance with the metal’s durability. These roofs are popular in commercial settings where a classic appearance is desired.

Pros:

  • Aesthetic Appeal – Provides a classic and sophisticated appearance.
  • Lightweight – Lighter than traditional tile roofs, reducing structural load.
  • Durable – Resistant to weather, fire, and insects.

Cons:

  • Cost – Metal tile roofs can be more expensive than other metal roofing options.
  • Installation Complexity – Professional installation is recommended, adding to initial costs.

Lifespan and Maintenance – Metal tile roofs can last 30 to 50 years. Regular maintenance should include:

  • Checking for loose tiles
  • Inspecting seals around penetrations
  • Addressing potential protective coating issues

Metal Slate Roofs

Metal slate commercial roofing systems

Metal slate roofing systems replicate natural slate with the added metal roofing benefits, including significantly increased durability and reduced weight.

Pros:

  • Aesthetic Appeal – Mimics traditional slate roofing’s elegant look.
  • Lightweight – Significantly lighter than natural slate, reducing the structural load.
  • Long Lifespan – Can last 40-60 years or more.

Cons:

  • Cost – Metal slate roofs can be more expensive than other metal roofing options.
  • Installation Complexity – Professional installation is recommended.

Lifespan and Maintenance – Metal slate roofing systems have a 40 to 60 year lifespan. Regular maintenance should include:

  • Inspecting for loose or damaged slates
  • Checking seals around penetrations
  • Addressing potential protective coating issues

Visit this YouTube channel for informative roofing videos, hints, and tips.

Commercial Metal Roofing Systems

In this article, you discovered information about 5 commercial metal roofing system types, their advantages, disadvantages, expected lifespans, and maintenance recommendations.

Understanding the available metal roofing options and their qualities will guide you when determining which roofing system is most appropriate for your structure.

Ignorance to roofing options may lead you or your organization to installing an inappropriate roof for your commercial needs.

Sources:
energy.gov/energysaver/cool-roofs
engineeringcivil.org/articles/building-materials/pros-and-cons-of-metal-roofs-in-commercial-building/
nachi.org/roofs.htm

New Image Roofing Atlanta

2020 Howell Mill Rd NW Suite 232
Atlanta, GA 30318
(404) 680-0041

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Roof Damage Insurance Claims and Choosing a Roofer

When your roofing system is damaged, avoid being bullied by your insurance carrier or dealing with unscrupulous contractors. Understanding how insurance claims are handled and how to vet roofing contractors will get your home or business back to normal quickly.

Residential roof damage insurance claims

newimageroofingatlanta.com gathered information on roof damage insurance claims, the inspection process, and hiring a reputable roofing contractor.

Roof Inspections and Insurance Claims

You should consider filing an insurance claim if your roof damage emergency resulted from severe weather, tree fall, or debris impact (act of God), before any work begins. To do so, gather your insurance policy, facts about the damage, and call your insurance carrier to initiate the claim process and schedule an inspection.

During an evaluation inspection, the insurance adjuster must document the following when assessing your loss:

  • Damages
  • Material needed for repairs
  • Labor costs to be allocated for repairs

or

  • Was the roof damaged sufficiently to declare it a total loss
  • Material required for replacement or re-roof
  • Labor costs to be allocated for replacement or re-roof

Roofing insurance claims after wind damage

To ensure you receive the maximum benefit from your insurance policy, call a professional roofing contractor to have an independent assessment done (your roofing contractor may schedule their inspection to coincide with the adjuster’s evaluation).

Note: An insurance adjuster cannot determine whether a roofing system has sustained sufficient damage to approve or deny your claim. They are only there to collect evidence for the claims department.

Tip: If your roof damage repair costs do not exceed your insurance policy’s deductible, you may be better off paying out-of-pocket for repairs.

Watch this informative video explaining how insurance deductibles work.

Request a Reinspection – If you find discrepancies between the insurance adjuster’s and the roofing contractor’s findings, you can request a reinspection or contract an independant insurance public adjuster.

Reinspections are common practice, in which the insurance adjuster will meet with the roofing contractor to review the damages done to your roof.

Upon approval of the claim to repair or replace your roofing system, your insurance provider may select the roofing contractor to complete the work. They may also leave that determination up to you.

Note: In regions where a disaster has occurred, insurance companies may set up emergency stations and follow special temporary procedures to expedite repairs and rebuilding.

Roof damage insurance claims after natural disasters

In these scenarios, it is crucial to keep receipts and records for temporary repairs, lodging, and meals, as your insurance company will likely reimburse you. The amounts you can claim during an emergency displacement are typically defined in your homeowners insurance policy.

Hiring A Roofing Contractor – What to Look For

Natural disasters and severe weather events attract some of the worst characters in the roofing business preying on unsuspecting property owners under immense pressure to get things back to normal.

Replacing a structure’s roof is a significant investment that needs to be done right, by a contractor that can be fully vetted and held accountable for the quality of their work.

When fielding bids from contractors to repair or replace your roof, consider the following factors into the decision-making process.

Does the contractor have:

  • A written proposal
  • A valid business license
  • A permanent business location
  • In-state references
  • Proof of insurance
  • In-depth knowledge and understanding of your roofing system
  • Up-to-date industry education
  • Material and workmanship warranties
  • A maintenance proposal

Look or ask for:

  • Manufacturer’s certifications
  • Roofing association memberships
  • Industry awards and recognition
  • Google reviews

Roofing contractor selection and Google reviews

Note: Request a welcome packet or business presentation with the contractor’s general information like this.

Finally, avoid doing business with roofing contractors that:

  • Cannot verify their company information and statements
  • Provide an excessively high or low bid
  • Cannot provide local references
  • Only deal in cash
  • Pressure or rush you to sign a contract

It is generally advised to acquire quotes from a minimum of three contractors for your roofing needs. This allows you to compare prices and scopes when determining which contractor to award your business.

Insurance Claims and Roofers

In this article, you discovered essential information about roof inspections, insurance claims, deductibles, and hiring a roofing contractor.

Once you understand how roof inspections and insurance claims work, you can be more vigilant about the roof repair process and prevent costly out-of-pocket expenses.

Making poor decisions during an insurance claim process or when hiring your roofing contractor may leave you with costly out-of-pocket expenses and poor quality repairs.

Sources:
fema.gov
nrca.net
consumerfinance.gov/ask-cfpb/how-do-home-insurance-companies-pay-out-claims-en-1523

New Image Roofing Atlanta

2020 Howell Mill Rd NW Suite 232
Atlanta, GA 30318
(404) 680-0041

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Built-Up Roofing (BUR) – Everything You Need to Know

Are you looking for a durable and economical roofing solution? A built-up roofing system (BUR) may be what you are looking for.

Commercial low slope or flat roofing

newimageroofingatlanta.com gathered information on built-up roofing systems (BUR), its benefits, installation, maintenance, and how it compares to other popular roofing systems. Consider the following:

What is Built-Up Roofing (BUR)?

Built-Up Roofing (BUR) is a time-tested, staple roofing system in the construction industry. This roofing system is composed of multiple layers of bitumen (asphalt or coal tar) and reinforcing fabrics, typically fiberglass or organic felts. These layers are applied in a repetitive fashion, creating a seamless, durable membrane. Gravel or mineral granules are often embedded into the top layer to protect it from the elements and provide significant UV resistance.

BUR Installation

Installing a built-up roofing system is a somewhat labor-intensive process that requires the expertise of skilled roofing contractors. Here is a step-by-step guide to how BUR is installed:

Built up roofing system layers

  1. Deck Preparation – The process begins with preparing the roof deck, ensuring it is clean, dry, and in good condition. Existing roofing material is removed, and any necessary repairs are made.
  2. Vapor Barrier Installation – A vapor barrier is installed to prevent any moisture from entering the building through the roof. This layer is essential for maintaining a comfortable indoor environment.
  3. Insulation – Insulation is added to improve energy efficiency and temperature control. Insulation can help reduce heating and cooling costs.
  4. Felt Layers – The first layer of roofing felt is applied directly over the insulation. This is typically a base sheet, and is secured using hot asphalt or adhesive.
  5. Bitumen Application – Multiple layers of bitumen are applied over the base sheet. The bitumen is heated and spread evenly across the roof, followed by the application of a reinforcement fabric.
  6. Reinforcement Fabric – Fiberglass or organic felts are embedded into the hot bitumen. This adds significant strength and stability to the roofing system.
  7. Repeat – Steps 5 and 6 are repeated until the desired number of layers is achieved. A BUR system typically consists of three to five layers.
  8. Surface Layer – The top layer or cap sheet, is made of bitumen and covered with aggregate materials like gravel or mineral granules. This layer provides protection against weather and UV radiation.
  9. Final Inspection – After the surface layer is installed, a final inspection is performed to ensure that the roofing system is correctly installed, and there are no defects.
  10. Maintenance – Regular maintenance is essential for a BUR system to maximize its lifespan and performance. Periodic inspections, cleaning, and repair of any damaged areas are crucial to its long lifespan.

BUR Advantages

Built up roofing systems require a maintenance plan

Built-Up Roofing has several advantages contributing to its enduring popularity:

  • Proven Durability – BUR systems are known for their long lifespan, often exceeding 20 years or more with regular maintenance. The roofing system’s multiple layers and redundancy make it resistant to leaks and damage.
  • Waterproofing – The bitumen layers and reinforcing fabrics create a seamless, waterproof barrier that effectively protects the building from any water infiltration.
  • Thermal Performance – The insulation layers in BUR systems can enhance a building’s energy efficiency, reducing heating and cooling costs.
  • Fire Resistance – BUR systems can be made with fire-resistant materials, making them an excellent choice for buildings in regions prone to wildfires or with strict fire codes.
  • UV Resistance – The top layer of aggregate materials offers UV protection, extending the roofing system’s lifespan.

BUR Disadvantages

While Built-Up Roofing offers multiple benefits, it also comes with some drawbacks:

  • Installation Complexity – BUR installation is labor-intensive and requires experienced roofers. This can increase the initial installation cost.
  • Weight – BUR systems can be heavy, potentially requiring additional structural support for some buildings.
  • Maintenance Requirements – Regular maintenance is crucial to ensure a BUR system’s longevity, which can add to the overall cost of ownership.
  • Odor and Fumes – The installation process involves heating bitumen, which releases unpleasant odors and fumes. Proper ventilation is necessary during installation.

TPO and PVC Roofing System Comparison

To make an informed decision about your roofing system, it’s essential to compare BUR to other popular options, like Thermoplastic Polyolefin (TPO) and Polyvinyl Chloride (PVC) roofing systems.

TPO Roofing Vs. BUR

TPO membranes vs built up roofing

TPO roofing is a single-ply membrane roofing system made from a blend of rubber and other materials. Here’s how it compares to BUR:

  • Installation – TPO roofing is relatively easier and quicker to install compared to BUR, which can significantly reduce labor costs.
  • Durability – BUR is known for its durability and long lifespan, often exceeding TPO systems. TPO can be more vulnerable to punctures and tears.
  • Energy Efficiency – TPO roofing reflects sunlight effectively, helping reduce cooling costs. However, BUR systems with added insulation can achieve similar energy efficiency.
  • Cost – TPO roofing can be cost-effective in terms of installation, but BUR may provide better long-term value due to its durability.

PVC Roofing Vs. BUR

PVC membranes vs built up roofing

PVC roofing, like TPO, is a single-ply membrane roofing system made of polyvinyl chloride. Here’s how it compares to BUR:

  • Installation – PVC roofing installation is similar to TPO (ease and speed). It may be a more cost-effective option for initial installation.
  • Durability – BUR is often considered more durable and resilient against severe weather conditions. PVC roofing may be more prone to damage over time.
  • Energy Efficiency – PVC roofing has excellent UV resistance and reflects sunlight effectively, providing energy savings. However, BUR can achieve similar results with added insulation.
  • Cost – PVC roofing can be cost-effective for initial installation, but BUR offers better long-term value and longevity.

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Built-Up Roofing Systems

In this article, you discovered what built-up roofing is, how it is installed, its advantages and disadvantages, and how it compares to other low slope roofing systems.

Understanding the various roofing system qualities, advantages, and disadvantages allows you to make an informed decision when determining which roofing system is best suited for your needs.

Unfamiliarity with roofing system advantages and disadvantages may lead you to installing an overpriced or improper roof on your residential or commercial structure.

Sources:
nps.gov/crps/tps/roofingexhibit/composition.htm
gsa.gov/real-estate/historic-preservation/historic-preservation-policy-tools/preservation-tools-resources/technical-procedures/types-of-flat-roofing-and-factors-affecting-its-deterioration
asphaltroofing.org/bur-multi-ply-built-up-roofing/

New Image Roofing Atlanta

2020 Howell Mill Rd NW Suite 232
Atlanta, GA 30318
(404) 680-0041

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