Whether you’re planning a new metal roof or upgrading an existing one, understanding these accessories is key to a perfect, professional-grade roofing system.
Metal roofing systems are known for their durability and long-term performance — but none of it is possible without the right accessories. From fasteners and sealants to underlayments and curbs, each part plays a vital role in ensuring the success of your roof, especially when a weathertight warranty is involved.
In this post, we’ll explore the importance of metal roofing accessories, how they’re selected for weathertight warranties, and what contractors must keep in mind when working on these systems.The Importance of a Proper Assembly
To qualify for a weathertight warranty, metal roofing assemblies must meet specific engineering requirements. Sheffield Metals requires a minimum UL 90 rating for all projects covered under their weathertight warranties. This includes the use of approved panel profiles, fasteners, clips, sealants, and underlayments.
All accessories are specified by the technical department and must match the engineering specs. Using the wrong clip or screw can void the warranty or lead to costly rework.
When it comes to building a strong, long-lasting metal roof, accessories are just as important as the metal panels themselves. Without the right accessories — such as fasteners, clips, closures, sealants, and snow guards — even the best roofing system can fail. These components play a critical role in ensuring proper installation, durability, weather resistance, and overall performance of the roof.
Many people overlook accessories, thinking they’re minor or optional — but the truth is: a roof is only as strong as the parts that hold it together.
In this blog post, we’ll discuss:
- The most essential metal roofing accessories
- Their individual roles and benefits
- Top companies known for providing the best quality roofing accessories
- And how to choose the right accessories for your metal roofing project
Why Buy Accessories from the Manufacturer?
Purchasing accessories directly from Sheffield (or the respective manufacturer) ensures that you receive components approved for warranty use. Here’s why this matters:
- It removes guesswork for the contractor.
- If there’s an issue, responsibility falls on the supplier — not the contractor.
- It prevents mismatches between engineering requirements and installed components.
Accessories not typically provided by Sheffield include underlayments (if specified otherwise) and roof curbs, but these can often be approved on a case-by-case basis.
Factors That Dictate Accessory Use
Accessories are dictated by engineering requirements, and here’s a key rule: you can do more, but not less.
For example, if the engineering calls for a #12 fastener, using a heavier-duty #14 fastener is acceptable. However, using a lighter-duty #10 fastener is not.
All alternative products — whether underlayments, sealants, or clips — must be pre-approved by Sheffield’s technical team.
Matching Lifespan with Warranty
Accessories should be selected with the roof’s expected lifespan in mind. If you’re applying for a 30-year weathertight warranty, you cannot use a sealant or underlayment with a 10-year lifespan.
Think long term: your accessories must be just as durable as the panels themselves.
Available Accessory Information
Sheffield provides a detailed submittal package and quote form with every project. This includes:
- List of required and non-approved accessories
- Approved underlayments (e.g., Sharkskin underlayment)
- Required sealants
- Process walkthrough from application to project completion
These documents help contractors stay on track and avoid installing incorrect components.
Accessory Details and Options
Here’s a summary table showing the most common accessories and how they’re handled during warranty projects:
| Accessory Type | Approval Needed? | Provided by Sheffield? | Notes |
|---|---|---|---|
| Fasteners | Yes | Yes | Must match engineering. Substitution must be heavier-duty only. |
| Clips | Yes | Yes | Only approved, UL-stamped clips allowed. Check diagrams on Tech Stick. |
| Sealants | Yes | Yes (preferred) | Contractors may request approval for preferred brands. |
| Underlayments | Yes | Yes (Sharkskin by default) | Others may be approved if specs require. Must match roof’s warranty term. |
| Rooftop Curbs | Yes | Often No | Contractors may use 3rd-party curbs if approved. |
| Flashing Accessories | Yes | Yes | Pre-manufactured flashing curbs preferred. |
Common Pitfalls to Avoid
- Mixing up similar-looking clips – Always confirm with engineering before installation.
- Skipping approval for substitutions – Even a better product must be reviewed first.
- Using short-lifespan products – They will not be accepted for long-term warranties.
- Poor communication – Lack of contact with the technical team can lead to costly errors.
Resources and Documentation
Sheffield provides full resources for contractors:
- Tech Stick – Contains drawings for all engineered clips (steel and aluminum).
- Recommended Installation Manuals – Full-color manuals with part descriptions and assembly visuals.
- Assigned Inspector – Every warranty project gets a dedicated inspector as a point of contact from start to finish.
Metal roofing accessories aren’t just add-ons — they’re essential parts of the roof system that ensure performance and warranty coverage. Contractors should always follow the engineering specs, use approved materials, and maintain communication with the technical department to avoid any issues.
Metal Roof Mounting Clamps
Metal roofing clamps are specialized components. They are used to secure accessories and equipment on metal roofing without any penetration or damage to the panels. They play a very important role in maintaining the entire structure of the roofing system, acting like a tight grip. They also support various external components like solar panels, making them versatile and essential for many purposes.
The reason that clamps are very important is that they are critical components in standing seam metal roofs. They are used without drilling or damaging the metal surface, so there are no issues like leaks or panel weakening. This makes them a highly beneficial solution. They also ensure the tightness and stability of everything attached to the standing seam metal roof.
These clamps are usually made of aluminum or stainless steel and designed to fit specific seam profiles. They often come with set screws that apply pressure on the seam without piercing the metal. Some clamps also feature attachment points for rails, brackets, or other mounting systems. The strength and engineering of these clamps are tested to withstand uplift, snow loads, and high wind conditions, making them a reliable option for both commercial and residential projects.
By using metal roof mounting clamps, contractors and property owners can safely enhance their roofs with modern additions while avoiding costly structural damage or future maintenance. Their ease of installation, strength, and non-penetrative design make them an essential accessory in the growing demand for multi-functional, long-lasting metal roofing systems.
| Feature | Description |
|---|---|
| Purpose | To attach equipment or accessories without penetrating roof panels |
| Material | Typically aluminum or stainless steel |
| Application | Used for solar panels, snow guards, HVAC units, walkways, satellite dishes |
| Compatibility | Designed to match specific seam profiles |
| Benefits | Maintains weathertightness, preserves warranty, prevents leaks |
| Installation Method | Clamps onto standing seams using set screws |
| Common Brands | S-5!, EcoFasten, AceClamp, and others |
| Structural Testing | Engineered for wind uplift, snow load, and mechanical stress |
Attachments & Snow Retention
Attachments and snow retention systems are also very important components in metal roofing. They are specially designed for metal roofs and can easily withstand snowfall and external environmental factors like rain, snow, strong winds, and sunlight. They are truly essential and highly effective, making them an important part of any metal roofing system.
Attachments refer to any items that are fastened to the roof system, including solar panels, HVAC units, satellite dishes, signage, cable trays, lightning protection systems, walkways, and mechanical supports. In metal roofing, especially standing seam systems, attachments must be installed using non-penetrating methods to avoid compromising the roof’s weather barrier. Specially designed clamps, brackets, and mounting hardware are used to secure these items to the seams without puncturing the metal panels. This maintains the weathertight integrity of the roof and prevents leaks, corrosion, or voided warranties.
Snow retention systems, on the other hand, are specifically designed to manage the movement of snow and ice on sloped metal roofs. Without proper snow retention, accumulated snow can slide off suddenly in large sheets, posing serious safety hazards to people, property, and landscaping below. This can also damage gutters, vents, or lower roofing components. Snow guards, snow rails, and bar-style systems help hold the snow in place, allowing it to melt gradually and drain through the roof’s gutter system as intended. These systems are especially important for public buildings, homes, schools, and commercial facilities where pedestrian traffic is frequent.
When selecting and installing both attachment and snow retention systems, it’s essential to ensure they are compatible with the specific metal roofing profile and that they meet engineering requirements for load, wind, and climate conditions. These components must be properly tested and approved to ensure they do not impact the performance or warranty of the roof. The use of high-quality, non-corrosive materials such as stainless steel or aluminum is also important for longevity and resistance to environmental conditions.
In conclusion, attachments and snow retention systems are not optional add-ons but crucial functional parts of a metal roofing system. They improve safety, expand functionality, and help preserve the structural and aesthetic integrity of the roof over time.
| Component Type | Description |
|---|---|
| Attachments | Includes solar panels, HVAC units, walkways, satellite dishes, etc. |
| Mounting Method | Non-penetrating clamps or brackets attached to standing seams |
| Importance | Maintains roof integrity, supports external systems without leaks |
| Snow Retention Systems | Prevent snow and ice from sliding off roof in dangerous sheets |
| Types of Snow Retention | Snow guards, snow rails, fence/bar systems |
| Materials Used | Stainless steel, aluminum, and other weather-resistant metals |
| Safety Benefit | Protects pedestrians, vehicles, and lower roof areas from falling snow |
| Engineering Requirement | Must meet uplift and snow load testing based on roof profile and climate |
Clips | Fasteners & Screws
Clips, fasteners, and screws are also among the most important components in metal roofing. Although they may not provide major visible benefits, they play a supporting role. These helping components are essential for the structural performance and long-term durability of the roof. You can find these components in locking panels, roof frames, and overall roof structure. They support panel movement and allow for natural expansion, providing resistance and proper ventilation. Without them, metal roofing would not remain stable in the long run.
Clips are primarily used in standing seam metal roofs. These clips are attached to the roof deck and are responsible for holding the metal panels in place. They allow for thermal expansion and contraction of the panels due to temperature changes throughout the day and across seasons. Most clips are made from galvanized or stainless steel and are specifically engineered to match the panel profile they are being installed with. Some are fixed, while others are floating, depending on whether movement needs to be accommodated. Only clips that are tested and approved for a particular system should be used, especially for projects requiring a weathertight warranty. Using an incorrect or non-engineered clip can cause serious installation failures or void the roofing warranty.
Fasteners and screws are used to secure clips, trim pieces, and other roofing accessories to the substrate or structural members. They come in many types, lengths, and gauges, and their selection depends on the substrate material (wood, metal, or concrete), roofing panel thickness, and environmental conditions. Fasteners are also used in exposed-fastener roofing systems where the screw head remains visible on the panel surface. These must be installed with proper washers to prevent water intrusion. For concealed systems, fasteners are hidden beneath the panels or seams, providing a cleaner aesthetic and improved weathertightness.
The correct selection and installation of fasteners and screws is critical to the success of a metal roofing system. Using fasteners with the wrong diameter, length, or corrosion resistance can lead to premature failures, rusting, or detachment under wind uplift. Furthermore, engineering requirements often specify the exact size and type of fasteners needed to meet load ratings and testing approvals such as UL 90. Contractors should always consult the technical specifications provided by the panel manufacturer or warranty provider before purchasing or installing any clips or fasteners.
In many cases, manufacturers require the use of specific fasteners or screws to ensure compatibility with weathertight warranties. This ensures that the tested system performs as intended and that any warranty claims can be backed by proven engineering. For example, Sheffield Metals requires that all components, including clips and fasteners, align with their tested systems for commercial roofing projects.
Summary Table: Clips, Fasteners & Screws in Metal Roofing
| Component | Description |
|---|---|
| Clips | Connect standing seam panels to substrate while allowing for movement |
| Clip Materials | Typically made of galvanized or stainless steel |
| Clip Types | Fixed and floating, depending on thermal movement needs |
| Fasteners | Used to attach clips, trim, and accessories to substrate or frame |
| Screw Types | Self-drilling, self-tapping, wood screws, metal screws, etc. |
| Corrosion Resistance | Fasteners must resist rust (e.g., coated or stainless steel) |
| Exposure Type | Can be exposed (visible) or concealed (hidden under panels) |
| Importance | Essential for structural integrity, wind uplift resistance, and durability |
| Engineering Needs | Must match system testing requirements for weathertight warranty eligibility |
Pipe Boots | Pop Rivets
When it comes to metal roofing, pipe boots and pop rivets also play a very important role. They ensure that the metal roofs are watertight and provide long-term structural performance. They also play a very important role in maintaining the integrity of the roof by preventing any type of moisture from entering.
Pipe Boots
Pipe boots are flexible flashings designed to seal around pipes or vents that penetrate the metal roof. These are typically made of rubber, silicone, or EPDM (Ethylene Propylene Diene Monomer) and have a metal base to conform tightly to the roof surface. Pipe boots prevent leaks where plumbing or mechanical vents pass through the roofing panels.
Why Pipe Boots Are Important:
| Feature | Role in Metal Roofing |
|---|---|
| Waterproof Seal | Prevents water from entering at pipe or vent penetrations |
| Flexibility | Expands and contracts with temperature changes and pipe movement |
| Durability | Designed to withstand UV rays, wind, and harsh weather |
| Easy Installation | Easily molded and sealed over roof contours using screws or sealant |
Key Benefits (Points):
- Seals vulnerable roof openings effectively
- Prevents leaks during heavy rain
- UV and weather-resistant
- Can be replaced without disturbing the entire roof system
Pop Rivets
Pop rivets (also known as blind rivets) are used to fasten lightweight materials, such as metal flashing or trim pieces, to the roof. They provide a strong mechanical connection in places where screws or bolts may not work as efficiently—especially in tight or blind spots.
Why Pop Rivets Are Important:
| Feature | Role in Metal Roofing |
|---|---|
| Permanent Bond | Creates a tight and durable fastening between metal parts |
| Versatile Use | Ideal for joining thin gauge metals or corners of flashings |
| Clean Appearance | Offers a neat finish with minimal protrusion |
| Corrosion-Resistant | Often made from aluminum or stainless steel to prevent rust |
Key Benefits (Points):
- Strong and secure fastening for metal-to-metal connections
- Maintains roof aesthetics with a clean look
- Suitable for hard-to-reach areas
- Easy to apply with rivet gun—quick and efficient
Underlayments & Ventilated Mat
Underlayments and ventilated mats also play an important role when it comes to metal roofing. They make the roof more durable and water-resistant. Underlayments and ventilated mats are essential components — these layers also work as an advanced barrier. They serve as the foundation of protection beneath the metal panels, and they significantly enhance the lifespan and longevity of metal roofs.
Underlayments are water-resistant or waterproof materials installed directly over the roof deck. Their main purpose is to act as a secondary barrier against moisture, wind-driven rain, and snow infiltration. In areas with heavy rainfall or snow, underlayments help prevent leaks even if the metal panels are damaged or fasteners loosen over time. They also improve fire resistance and reduce heat transfer, making them a key element in improving energy efficiency.
Ventilated mats, on the other hand, are three-dimensional mesh-like structures placed under the metal panels. Their purpose is to allow air circulation between the metal roofing and the deck, reducing trapped moisture that can lead to mold, corrosion, or wood rot. They also help with sound dampening, especially during heavy rainfall or hail, and can minimize the expansion and contraction noises that are common with metal roofing systems.
Comparison Table: Underlayments vs Ventilated Mat
| Feature | Underlayments | Ventilated Mat |
|---|---|---|
| Purpose | Moisture barrier and thermal insulation | Airflow, drainage, and noise reduction |
| Material Type | Felt, synthetic, or peel-and-stick membranes | Plastic or nylon mesh |
| Installed Location | Directly on roof decking | Between underlayment and metal panels |
| Protection Against | Water, snow, wind, heat | Moisture buildup, mold, rust |
| Additional Benefits | Energy efficiency, fire resistance | Ventilation, sound dampening |
Together, underlayments and ventilated mats create a moisture-resistant, ventilated, and insulated space beneath the metal roof. Without them, even the most expensive roofing panels can suffer from leaks, corrosion, or trapped heat. That’s why professionals never skip these essential layers—they are as important as the visible panels in building a reliable metal roofing system.
Sealants & Butyl Tape
In metal roofing systems, sealants and butyl tape play a critical role in ensuring watertight and long-lasting protection against the elements. These components are used at joints, seams, and penetrations where panels overlap or where fixtures such as vents and skylights are installed. Without a proper seal, water can easily penetrate these vulnerable areas and cause corrosion, rust, or leaks.
Sealants are typically polyurethane or silicone-based materials applied with a caulking gun. They remain flexible after curing, allowing them to expand and contract with the metal during temperature fluctuations. This flexibility prevents cracking and maintains the seal over time.
Butyl tape, on the other hand, is a pre-formed adhesive strip made of rubber-like material that provides an instant, mess-free seal. It is especially useful between overlapping panels, under flashings, and around pipe penetrations. Butyl tape sticks tightly to metal surfaces and forms a barrier against air, moisture, and dust.
The combination of sealants and butyl tape enhances the roof’s resistance to wind-driven rain and helps meet building code requirements for energy efficiency and moisture control. For these reasons, they are indispensable accessories in any well-installed metal roofing system.
Paint Pens & Touch-Up Paint
Paint pens and touch-up paints also play a very important role in any type of roofing. They act as a critical accessory in the paint system. These coatings work as an external protective layer on the metal roof, helping to prevent water damage, rust, and weather-related damage of any kind.
Why Paint Pens & Touch-Up Paint Are Important
Metal roofs are coated with protective and decorative finishes, but during transportation, cutting, drilling, or installation, minor scratches or chips can happen. Left untreated, these small areas can expose the underlying metal to moisture, air, and UV rays, eventually leading to rust or corrosion.
This is where paint pens and touch-up paint become essential.
Their Key Roles in Metal Roofing
| Function | Description |
|---|---|
| Scratch & Chip Repair | Instantly covers minor damages caused during installation or handling. |
| Rust Prevention | Seals exposed metal areas to stop corrosion before it starts. |
| Color Match | Designed to match the exact shade of metal roofing, ensuring consistent appearance. |
| Extended Roof Life | Prevents minor flaws from turning into major problems, helping the roof last longer. |
| Improves Aesthetic Appeal | Keeps the roof looking new by concealing imperfections. |
Where & When to Use
- On cut panel edges that aren’t factory-finished.
- Around screw holes or drilled areas where the coating was damaged.
- On scratches caused during shipping or installation.
- As routine maintenance, especially in harsh climates.
Common Options
| Product Type | Usage |
|---|---|
| Paint Pens | Ideal for precision repairs and narrow scratches. Easy to carry and apply. |
| Touch-Up Paint Bottles | Better for wider areas or multiple touch-ups. Usually applied with a brush. |
MoistureLok – Moisture-trapping membrane for condensation control
MoistureLok is a specially designed membrane used in metal roofing systems to control condensation, making it a crucial accessory for building longevity and occupant comfort.
Why MoistureLok Is Important in Metal Roofing
Metal roofs, especially in climates with high humidity or temperature changes, often face condensation problems. When warm, moist air inside a building comes into contact with the cooler underside of a metal panel, water droplets form — just like dew on a cold glass. This trapped moisture can lead to:
- Dripping on insulation or ceilings
- Rust or corrosion of metal components
- Mold or mildew growth
- Damaged insulation and structural materials
This is where MoistureLok plays a vital role. It’s designed to trap and hold condensation until it can naturally evaporate, instead of letting it drip and cause damage.
How MoistureLok Works
| Feature | Description |
|---|---|
| Absorbent Fleece Material | Built with high-capacity nonwoven fibers that absorb and retain moisture. |
| Holds Moisture Temporarily | Traps condensation within its pockets during high humidity cycles. |
| Evaporation-Friendly Design | Releases stored moisture back into the air when temperature rises or humidity drops. |
| Prevents Drips | Stops water from falling onto insulation, ceilings, or machinery. |
Benefits of Using MoistureLok in Roofing Systems
| Advantage | Result |
|---|---|
| Condensation Control | Protects the building interior from water damage. |
| Corrosion Prevention | Reduces metal rust caused by trapped moisture. |
| No Need for Additional Vapor Barriers | Simplifies construction, especially in open-frame buildings. |
| Improved Indoor Air Quality | Prevents mold/mildew due to dampness. |
| Low Maintenance Solution | Passive protection that doesn’t require electricity or sensors. |
Ideal Applications
- Agricultural buildings (barns, stables, poultry houses)
- Warehouses
- Workshops and garages
- Recreational structures
- Residential homes with open framing or metal roof decks
SFS Intec – Manufacturer of fasteners and clips
When it comes to metal roofing systems, fasteners and clips are more than just small components — they are the structural backbone that holds the entire roof in place. SFS Intec, a globally recognized manufacturer, plays a key role by providing high-quality fasteners, clips, and other critical roofing accessories that ensure the roof’s strength, durability, and performance.
Why SFS Intec Is Important in Metal Roofing
A metal roof is only as strong as the components that secure it. Low-quality fasteners or clips can lead to:
- Roof panel shifting or loosening
- Water leakage at fastening points
- Premature wear and corrosion
- Reduced wind resistance and uplift performance
That’s where SFS Intec stands out — they provide precision-engineered solutions that meet the strictest standards of durability, weather resistance, and compatibility with metal roofing materials.
Core Role of SFS Intec in Metal Roofing
| Component | Role |
|---|---|
| Fasteners | Secure metal panels to the substrate, ensuring wind and water resistance. |
| Clips | Allow for panel movement due to thermal expansion/contraction while keeping panels locked in place. |
| Sealing Systems | Some fasteners include sealing washers to prevent leaks at penetration points. |
What Makes SFS Intec Fasteners & Clips Reliable
| Feature | Benefit |
|---|---|
| Corrosion-Resistant Coatings | Increases lifespan, especially in coastal or humid environments. |
| High Tensile Strength | Withstands uplift, wind loads, and structural stress. |
| Designed for Thermal Movement | Clips allow panels to expand and contract without damage. |
| Compatible with Most Metal Panels | Works with standing seam, corrugated, and concealed fastener systems. |
| Certified & Tested | Meets international standards for performance and durability. |
Applications of SFS Intec Products
- Standing seam metal roofing
- Exposed fastener metal panels
- Wall cladding systems
- Commercial and industrial buildings
- Residential metal roofing systems
S-5! – Clamp systems for snow retention and roof attachments
In a metal roofing system, proper attachment solutions are essential — not just for the panels themselves, but also for accessories like solar panels, snow guards, walkways, HVAC equipment, and other rooftop components. This is where S-5! comes in — a leading manufacturer of patented clamp systems that offer safe, non-penetrating solutions for a wide range of roof attachments.
Why S-5! Clamp Systems Are Important in Metal Roofing
Metal roofs are sleek, durable, and efficient — but attaching anything to them improperly can lead to leaks, corrosion, and warranty voids. Drilling holes through the roof surface breaks the protective finish and compromises its integrity.
S-5! solves this problem with its engineered clamp systems that attach securely to standing seam roofs without piercing the metal.
Core Role of S-5! in a Metal Roof System
| Function | Description |
|---|---|
| Non-Penetrating Attachments | Clamps to seams without drilling, preserving roof integrity. |
| Snow Retention Systems | Keeps snow and ice from sliding off roofs in large, dangerous sheets. |
| Mounting Accessories | Securely holds solar panels, HVAC units, signs, pipes, and walkways. |
| Load Distribution | Distributes weight evenly across panels to prevent structural stress. |
Key Features of S-5! Clamp Systems
| Feature | Benefit |
|---|---|
| Patent-Protected Design | Reliable, tested solutions trusted worldwide. |
| High Holding Strength | Can withstand wind uplift, heavy snow loads, and equipment weight. |
| Made from High-Grade Aluminum or Stainless Steel | Ensures long-term resistance to corrosion and weathering. |
| Easy Installation | Requires simple tools and no special training. |
| Compatible with Most Standing Seam Profiles | Offers a wide range of models for different panel types. |
S-5! for Snow Retention
In snowy climates, sliding snow and ice can cause serious safety hazards and property damage. S-5! snow retention systems, such as ColorGard®, work with clamps to:
- Hold snow in place until it melts gradually
- Prevent dangerous avalanches from metal roofs
- Protect people, property, and gutters below the roofline
Typical Uses for S-5! Clamps
| Application | Example |
|---|---|
| Solar Panel Installation | Safe, secure solar mounting without roof penetration. |
| Snow Guards | ColorGard®, SnoRail™, and SnoFence™ systems for snow control. |
| HVAC or Piping Attachments | Running conduit or pipes on rooftops. |
| Maintenance Walkways | Metal grating or platforms for safe rooftop access. |
| Signage and Antennas | Attach without compromising panel integrity. |
Titebond – WeatherMaster Metal Roof Sealant (available in McElroy Metal colors)
Titebond WeatherMaster Metal Roof Sealant is a high-performance sealing solution specifically designed for metal roofing systems. It’s known for its exceptional adhesion, flexibility, and weather resistance, and is available in a variety of McElroy Metal colors to ensure a seamless, professional finish.
Why Titebond WeatherMaster Is Important for Metal Roofing
Metal roofs face continuous exposure to rain, UV rays, temperature changes, and wind. These conditions can cause gaps or joints between panels, flashings, trims, or fasteners to expand and contract. Without a high-quality sealant, these joints can become entry points for water, air, and debris, leading to:
- Roof leaks
- Rust and corrosion
- Energy inefficiency
- Structural damage over time
Titebond WeatherMaster plays a vital role by creating a waterproof, flexible barrier that moves with the roof but never breaks its seal.
Core Features of Titebond WeatherMaster Sealant
| Feature | Benefit |
|---|---|
| Permanently Flexible | Expands and contracts with the roof without cracking. |
| UV and Weather Resistant | Withstands harsh weather, from sun exposure to freezing temps. |
| Paintable & Color-Matched | Comes in McElroy Metal roof panel colors for a clean look. |
| Superior Adhesion | Bonds tightly to metal, wood, flashing, masonry, and more. |
| VOC-Compliant | Safe for use in all 50 states; environmentally friendly formula. |
Common Applications in Metal Roofing
| Use Area | Purpose |
|---|---|
| Panel Joints | Seals gaps between overlapping metal sheets. |
| Flashing Edges | Prevents water infiltration around chimneys, skylights, or vents. |
| Fastener Heads | Adds a layer of protection around exposed screws or bolts. |
| Roof-to-Wall Connections | Maintains a tight seal where the roof meets vertical surfaces. |
| Gutter and Downspout Connections | Ensures leak-proof drainage systems. |
Available McElroy Metal Colors
One of the key advantages of Titebond WeatherMaster is its availability in dozens of McElroy Metal colors, allowing contractors and homeowners to match sealant lines perfectly with their metal panels, ensuring the sealant blends visually and maintains the roof’s overall aesthetic.
Cannonball – Post Frame building components (e.g. track and trolley parts for sliding doors)
Cannonball is a well-known manufacturer of post-frame building components, particularly specializing in track and trolley hardware for sliding doors used in agricultural, commercial, and industrial metal buildings. These components are essential for providing smooth, durable, and space-saving door systems in structures built with metal roofing and siding.
Why Cannonball Components Matter in Metal Roofing Projects
Post-frame buildings often include large sliding doors — for barns, workshops, warehouses, and garages — that must be reliable, weather-resistant, and easy to operate. A poorly functioning door can lead to:
- Operational inefficiency
- Water and air infiltration
- Increased wear and maintenance costs
- Security issues
Cannonball’s track and trolley systems are built to handle these demands with precision and long-term durability, making them an essential accessory in complete metal building systems.
Core Role of Cannonball Track & Trolley Systems
| Component | Function |
|---|---|
| Track (Overhead or Side-Mount) | Guides the door along the wall; typically made from galvanized steel or aluminum. |
| Trolleys (Rollers) | Mounted on the door, they ride smoothly inside the track to allow sliding. |
| Brackets & Hangers | Secure the track to the wall or roof structure with heavy-duty strength. |
| Bottom Guides | Keep the door aligned and prevent swaying during movement. |
| Door Stops | Prevent the door from sliding off the end of the track. |
Key Features of Cannonball Systems
| Feature | Benefit |
|---|---|
| Heavy-Duty Construction | Built to support large, heavy doors in agricultural and industrial settings. |
| Corrosion-Resistant Materials | Ideal for outdoor and humid environments, especially in metal buildings. |
| Smooth & Quiet Operation | Precision engineering allows easy sliding even for oversized doors. |
| Complete Hardware Kits Available | Ensures all components are compatible and easy to install. |
| Custom Fit Options | Available for different door sizes, weights, and mounting styles. |
Ideal Applications
- Barns and stables
- Equipment sheds
- Pole barns and post-frame buildings
- Industrial warehouses
- Commercial garages or storage units
LM Curbs (LMCurbs) – Custom-designed roof curbs for standing seam applications
LM Curbs, also known as LMCurbs, is a leading manufacturer of custom-designed roof curbs specifically engineered for standing seam metal roof systems. These curbs are critical for mounting rooftop units — like HVAC systems, exhaust fans, skylights, and other penetrations — without compromising the watertight integrity and structural strength of the metal roofing.
Why LM Curbs Are Important in Metal Roofing
In metal roofing, especially standing seam systems, installing rooftop equipment requires cutting into the panels. Without the right curb, this can lead to:
- Leaks and water damage
- Thermal expansion issues
- Poor equipment alignment
- Voided roof warranties
That’s where LMCurbs come in — their curbs are precision-fabricated to match the exact roof profile and slope, ensuring a perfect fit, secure mounting, and reliable performance.
Core Role of LMCurbs in Standing Seam Applications
| Function | Description |
|---|---|
| Provides Stable Base for Rooftop Equipment | Offers a level, reinforced platform to support HVAC units, vents, and fans. |
| Matches Panel Profile & Roof Pitch | Custom-built to seamlessly integrate with specific standing seam panels. |
| Prevents Water Infiltration | Engineered with welded corners, built-in diverters, and optional seals. |
| Allows for Thermal Movement | Designed not to restrict the natural expansion/contraction of metal panels. |
| Supports Easy Equipment Installation | Makes mounting rooftop systems faster and more secure. |
Key Features of LM Curbs
| Feature | Benefit |
|---|---|
| Custom Fabrication | Designed to match roof slope, panel width, and seam height. |
| Welded Construction | Ensures long-lasting strength and leak-free performance. |
| Integrated Water Diverters | Directs water away from penetrations to prevent leaks. |
| Fully Compatible with Major Metal Panel Brands | Works seamlessly with McElroy Metal, MBCI, and others. |
| Optional Flashing Kits | For extra protection and quicker installation. |
Ideal Use Cases
- Commercial metal buildings with rooftop HVAC
- Warehouses and industrial facilities needing ventilators or curbs
- Architectural standing seam roofs with custom skylights or mechanical units
- Retrofit and new construction projects
Palram – SUNSKY® polycarbonate daylighting panels (for skylights, greenhouses, etc.)
Palram, a global leader in thermoplastic solutions, offers the SUNSKY® line of polycarbonate daylighting panels, designed to integrate seamlessly into metal roofing systems. These panels are engineered for natural light transmission, making them ideal for skylights, greenhouses, canopies, industrial buildings, and post-frame applications.
Why SUNSKY® Panels Matter in Metal Roofing
Daylighting is a key element in energy-efficient building design. By allowing natural sunlight into buildings, you can:
- Reduce electricity usage during the day
- Improve indoor visibility and comfort
- Create a more pleasant work or living environment
- Support plant growth in agricultural and greenhouse settings
SUNSKY® polycarbonate panels are specifically made to work with corrugated and metal roof profiles, offering a durable, UV-resistant, and light-transmitting solution.
Core Role of SUNSKY® in Metal Roofing Systems
| Function | Description |
|---|---|
| Daylighting | Brings in natural sunlight, reducing the need for artificial lighting. |
| Profile Matching | Designed to match popular metal panel profiles, ensuring leak-free integration. |
| Weather Resistance | Withstands hail, wind, UV rays, and temperature extremes. |
| Thermal Insulation | Helps regulate indoor temperatures while still letting light in. |
| Impact Resistance | Much stronger than fiberglass or acrylic skylight panels. |
Key Features of SUNSKY® Polycarbonate Panels
| Feature | Benefit |
|---|---|
| High Light Transmission | Allows up to 90% of natural light to pass through. |
| UV-Protected Surface | Prevents yellowing, cracking, and degradation over time. |
| Excellent Impact Resistance | Virtually unbreakable under normal usage conditions. |
| Profile Compatibility | Available in profiles that match McElroy Metal and other leading panels. |
| Wide Temperature Tolerance | Performs in both hot and cold climates (-40°C to +120°C). |
| Easy Installation | Lightweight and easy to cut, drill, and fasten. |
Common Applications
- Skylights in metal roofs (industrial, agricultural, and residential buildings)
- Greenhouses and plant nurseries
- Covered walkways and shelters
- Industrial and warehouse facilities
- Daylight panels in barns and post-frame structures
Developmental Industries (D.I. Roof Seamers) – Roof seamers and curving equipment rental
Developmental Industries, widely recognized by its brand name D.I. Roof Seamers, is a leading provider of roof seaming tools and curving equipment designed specifically for standing seam metal roofing systems. They specialize in renting high-performance seamers and custom curving tools used by roofing professionals across the commercial, industrial, and architectural sectors.
Why D.I. Roof Seamers Are Important in Metal Roofing
In standing seam metal roofing, the panels are joined at their seams using a mechanical or snap-lock system. For mechanical seams, a seaming tool is essential to properly fold and lock the seams — ensuring the roof is:
- Watertight
- Wind-resistant
- Structurally secure
- Code-compliant
D.I. Roof Seamers provides specialized machines that are precisely matched to the roofing panel profile, guaranteeing a clean, strong, and uniform seam.
Core Role of D.I. Roof Seamers & Equipment
| Equipment Type | Function |
|---|---|
| Roof Seamers | Mechanically lock standing seam panels together for strength and weather-tight performance. |
| Curving Equipment | Bends standing seam panels to fit curved roof designs (barrel roofs, domes, etc.). |
| Hand Crimpers & Tools | Used for panel starts, tight spaces, or finishing details. |
Key Features of D.I. Roof Seamers
| Feature | Benefit |
|---|---|
| Profile-Specific Machines | Seamers are custom-built for exact panel profiles (like McElroy Metal systems). |
| Rental Program | Cost-effective access to professional-grade equipment for short- or long-term use. |
| Electric & Pneumatic Options | Supports various jobsite needs and preferences. |
| Smooth, Uniform Seaming | Ensures consistent locking across all panels — improving roof performance. |
| On-Site Technical Support | Helps contractors get the right tools and usage guidance for any project. |
Ideal Applications
- Commercial standing seam roofs
- Industrial buildings requiring long panel runs
- Architectural designs with curved roofs
- Projects requiring precise, manufacturer-approved seam closures
Duncan Bolt – Supplies fasteners, closures, and sealants (mainly for West Coast)
Duncan Bolt is a trusted distributor of fasteners, closures, sealants, and construction hardware, serving the metal roofing and building industry—primarily across the U.S. West Coast. With decades of experience, Duncan Bolt is a go-to source for reliable, job-ready components that support the performance and longevity of metal roofing systems.
Why Duncan Bolt Is Important in Metal Roofing Projects
A high-quality metal roof isn’t complete without dependable accessories like fasteners, foam closures, and sealants. If these components fail, even the best roofing panels can suffer from:
- Leaks and water damage
- Poor wind uplift resistance
- Thermal inefficiency
- Noise issues or panel rattling
Duncan Bolt helps contractors avoid these issues by supplying tested, high-performance materials specifically made for metal building systems.
What Duncan Bolt Provides
| Product Type | Purpose |
|---|---|
| Fasteners | Self-drilling screws, rivets, and specialty bolts for panel and structural attachment. |
| Closures | Pre-cut foam closures to seal gaps under and over metal panels, blocking moisture, debris, and insects. |
| Sealants | Butyl tape, caulks, and adhesives to waterproof panel joints, flashing, and penetrations. |
| Tools & Hardware | Accessories and tools for efficient, secure installation. |
Key Features of Duncan Bolt Products
| Feature | Benefit |
|---|---|
| Metal Roofing Compatibility | Supplies fasteners with coatings designed for metal roofs (e.g. EPDM washers, corrosion-resistant plating). |
| Regional Focus | Strong logistics and customer service network across California and the West Coast. |
| Top Brands Offered | Stocks products from leading manufacturers like SFS Intec, Titebond, and others. |
| Customized Solutions | Offers tailored kitting, labeling, and packaging for large-volume jobs. |
| Fast Delivery | Ensures contractors get materials when and where they need them. |
Ideal Applications
- Commercial and industrial metal roofing projects
- Agricultural metal buildings
- Post-frame construction
- Residential metal roofing (in select markets)
- Contractors operating along the West Coast (California, Oregon, Washington)
Roof Hugger – Metal-over-metal retrofit roof systems
Roof Hugger is a leading provider of metal-over-metal retrofit roof systems, offering a smart solution for upgrading existing metal roofs without full removal. Their patented sub-framing systems are designed to fit over old metal roofing, allowing a new metal roof to be installed directly on top. This approach offers significant savings in time, labor, and cost — while improving the building’s performance and appearance.
Why Roof Hugger Is Important in Metal Roofing
Removing an old metal roof is expensive, time-consuming, and disruptive — especially for commercial, industrial, and institutional buildings that can’t afford downtime. Traditional tear-off methods also create large volumes of waste and disposal costs.
Roof Hugger provides a structural retrofit system that solves these issues by:
- Eliminating the need to tear off the old metal roof
- Maintaining building operations during installation
- Improving insulation, energy efficiency, and strength
- Preparing the structure for solar panel installation, insulation upgrades, and code compliance
Core Role of Roof Hugger in Metal Retrofit Systems
| Component | Function |
|---|---|
| Sub-Purlins (Roof Huggers) | Structural components that fit over existing roof ribs and support the new roof system. |
| Attachment Brackets | Connect the new framing securely to the existing structure. |
| Insulation Layer (Optional) | Space created between old and new roofs allows for energy-saving insulation. |
| Ventilation & Solar Integration | Retrofit system can be designed to support improved airflow and solar arrays. |
Key Benefits of Using Roof Hugger Systems
| Feature | Benefit |
|---|---|
| No Roof Removal Required | Saves time, reduces cost, and minimizes disruption. |
| Engineered for Strength | Fully tested and certified to meet wind and snow loads. |
| Custom Fit to Existing Panels | Pre-punched and profiled to fit existing rib patterns. |
| Ideal for Solar-Ready Roofs | Adds structural capacity for solar mounting systems. |
| Supports Energy Code Compliance | Space allows for added insulation and improved thermal performance. |
Ideal Applications
- Commercial and industrial buildings with aging metal roofs
- Airports, schools, warehouses, and factories
- Post-frame buildings and agricultural facilities
- Structures where interior operations cannot be disturbed
- Projects requiring energy upgrades or solar retrofits
Hello! I’m Abdullah, a passionate professional in the field of construction and roofing. I am the proud owner of SJ Roofing & Venting, a leading construction company based in New York. With years of hands-on experience, I write about various construction methods, techniques, and industry insights to share my knowledge and help others in the field. I’m also the founder and main contributor of this website.