The Tandem®300™ turns convention on its head.

The key to Tandem Building Products™ innovation lies in the patented design of the Tandem® Series™. Where conventional roofing panels are screwed down to a building’s infrastructure, TBP™ panels are inverted and attached to the system, allowing for  protection against weather elements and natural disasters. Below is a comparison of the commercial roofing industry’s current types of roof systems to include metal and low slope (or flat) roofs.

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Conventional Metal Roofs

Conventional Metal Roofs

Two common types of conventional metal roofs include R-Panel and Standing Seam.

R-panel, or exposed fastener roofing, consists of overlapping panels that are fastened directly to the roof deck or framing through the face of the metal. They are called “exposed” because the fastener head remains visible once installed. The ribs (trapezoidal design seen in the drawing to the right and the animation below) give the classic ribbed appearance on R-panel metal roofs. 

Conventional Fasteners

In this profile view, screws are drilled straight down through the metal R-panel into the roof deck. Over time as the metal expands and contracts from heat and cold, screw holes will grow wider, causing leaks. Water ponding on the roof in low places will also cause rusting and leaks. In strong storms, the forces of high winds will lift and PULL OUT the screws and roof.

Characteristics of Conventional Metal Roofs

CORROSION

Conventional metal roofing corrodes with time, especially in low areas around screws where water collects. (See above: Conventional Fasteners)

TBP™ DIFFERENCE

The Tandem® Inverted Panel™ is unique to the marketplace in that the inverted ribs become water channels funneling water off the roof system. Water no longer ponds but is intentionally directed to channel into the inverted ribs and flow to the gutters.
No Ponding

CONTRACTION AND EXPANSION

As temperatures increase and fall, metal expands and contracts, resulting in fasteners coming loose, and the metal panels no longer being stable.

TBP™ DIFFERENCE

Tandem™ roofs are engineered for 360º movement of the roof plane to accommodate expansion and contraction. Our panels are anchored to our clip system which slides freely in all directions.
Tandem® 360 Clip™

CAN'T BE USED FOR LOW SLOPE ROOFS

Shallow roofs with a low slope (less than a 3:12 pitch) take too long to shed the water, which will puddle and likely cause a metal roof to leak.

TBP™ DIFFERENCE

Tandem™ is the ONLY patented metal roof/wall system that can be utilized as a true low-slope system. Where conventional roof slopes require some form of bitumen (a petroleum based roofing sealant), a roof of any pitch can utilize the Tandem®Series™.

DENTS EASILY, HARD TO REPAIR

Some metal such as aluminum and copper can be easily dented by large hail or falling branches. Even walking on metal panels can cause damage.

TBP™ DIFFERENCE

TBP™’s 22-gauge panels not only withstand the highest tornado wind speeds, they also provide substantial resistance against impact damage because debris and hail cannot structurally damage the inverted ribs.
Debris Impacts

Characteristics of the Tandem® 300™ System

QUICK INSTALLATION

Lightweight panels install quickly and can be applied over existing roof with pitches.

TBP™ ADDED PROS

Tandem® solutions have lightweight metal panels for quick installation without interrupting operations and business within the structure AND Tandem® roofs can be applied to any infrastructure INCLUDING low slope/pitches.

DURABILITY

Unlike other building materials, metal does not break, split, chip, dry out, warp, or rot. Conventional metal roofs can survive severe winds up to 140 mph.

TBP™ ADDED PROS

The Tandem® Series™ can withstand 300mph (depending on infrastructure) and has more resiliency against most impacts, prolonging the life of the structure, and greatly reducing maintenance and the necessity of replacement.

LONGER LIFESPAN

The average lifespan of a metal roof can be between 20-70 years depending on what metal is used, and provided that the roof installation was performed correctly and it has undergone regular maintenance.

TBP™ ADDED PROS

Tandem BP™ structures offer up to 5X the longevity as compared to the 20-year longevity of a comparable traditional build. Even the longest lasting conventional metal buildings lasting 70 years will not surpass the 100 year life span of a Tandem® Series™ system.

ENERGY EFFICIENT

Conventional metal structures are substantially more reflective than roofs that absorb the sun’s radiation and raise the temperature of a building.

TBP™ ADDED PROS

Tandem BP™ buildings offer a wide range of energy-efficient options and solutions including skylights, insulation, vegetative roofs, and R-values that range from 20 to 100.

Conventional Low Slope Roofs

Conventional Low Slope Roofs

Conventional low slope roofs (“flat roofs”) are not able to utilize metal panels. Instead, they use soft membranes including plastic, rubber, and modified bitumen.

Types of Low Slope Roofs

Built-Up Roofing: BUR alternates layers of asphalt and fabric with a top layer of stone or aggregate.

Rubber Membrane Roofing: also known as EPDM, is made of a thick rubber layer secured with roofing glue and metal anchors.

Modified Bitumen: similar to BUR roofing, is installed in pre-made sheets rather than building up layers on-site.

Single-Ply Roofing: utilizes a single-ply thermoplastic system that usually has a white UV-reflective color.

Cons

PONDING WATER

The low to flat pitch of low-sloped roofs does not allow for water runoff. This leads to roof materials and insulation sinking under the load of collecting water, along with mold growth and water leaks.

TBP™ DIFFERENCE

The Tandem® metal roof system is designed to function as a low slope system that directs water into channels created by patented inverted ribs/panels. Water then freely flows off the roof.
NO PONDING

CONTRACTION AND EXPANSION

As temperatures increase and fall, metal expands and contracts, resulting in fasteners coming loose, and the metal panels no longer being stable.

TBP™ DIFFERENCE

Tandem™ roofs are engineered for 360º movement of the roof plane to accommodate expansion and contraction. Our panels are anchored to our clip system which slides freely in all directions.
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CAN'T BE USED FOR LOW SLOPE ROOFS

Shallow roofs with a low slope (less than a 3:12 pitch) take too long to shed the water, which will puddle and likely cause a metal roof to leak.

TBP™ DIFFERENCE

Tandem™ is the ONLY metal roof system that can be utilized as a true low-slope system. Where conventional roof slopes require some form of bitumen (a petroleum based roofing sealant), a roof of any pitch can utilize the Tandem®Series™.
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DENTS EASILY, HARD TO REPAIR

Some metal such as aluminum and copper can be easily dented by large hail or falling branches. Even walking on metal panels can cause damage.

TBP™ DIFFERENCE

TBP™’s 22-gauge panels not only withstand the highest tornado wind speeds, but they also provide substantial resistance against impact damage because debris and hail cannot structurally damage the inverted ribs.
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Pros

SAFE INSTALLATION

Low-sloped roofs offer easier and safer conditions for roofers to work on than high-pitched roofs or steep slope roofs.

TBP™ ADDED PROS

Tandem® metal roofs operate as low slope roofs as well, providing safe installation conditions for roofers.
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SOLAR PANELS

TBP™ ADDED PROS

The Tandem® Series™ can withstand 300mph (depending on infrastructure) and has more resiliency against most impacts, prolonging the life of the structure, and greatly reducing maintenance and the necessity of replacement.
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LESS MATERIALS NEEDED

Low-slope roofs also require less material than steep-slope roofs, making them less expensive, more practical, and ideal for larger buildings.

TBP™ ADDED PROS

Tandem BP™ structures offer up to 5X the longevity as compared to the 20-year longevity of a comparable traditional build. Even the longest lasting conventional metal roofs lasting 70 years will not surpass the 100 year life span of a Tandem®Series™ roof.
Click Here

ENERGY EFFICIENT

Conventional metal roofs are substantially more reflective than roofs that absorb the sun’s radiation and raise the temperature of a building.

TBP™ ADDED PROS

Tandem BP™ buildings offer a wide range of energy-efficient options and solutions including skylights, insulation, vegetative roofs, and R-values that range from 20 to 100.
Click Here

The Tandem® Series™

The Tandem® Series™

The Tandem®Series™ of resilient metal roof and wall systems are uniquely suited to protecting assets in hurricane, tornado and other wind-damaging conditions/events.

The system is engineered to have a useful life of 100 years and allows for a 5x stronger attachment to infrastructure members compared to conventional metal roof/wall systems. The attachment system accommodates expansion and contraction movement in 360 degrees, which means the panels are not subjected to stress or binding. 

This free movement of panels supports the use of heavier gauge metal. While conventional metal roofs and walls are limited to 22-gauge maximum, the Tandem®300™ supports a range of sheet metal gauges.  The Tandem® attachment system can be used on all types of infrastructure, including Z and C purlins, web joists, wood or metal rafters, and studs.

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The elimination of ponding water is critical in low-slope applications. The Tandem® Inverted Panel™ is unique to the marketplace in that the inverted ribs become water channels funneling water off the roof system. Water is intentionally directed to channel into the inverted ribs and flow to the gutters. While most of the water will shear off the large surface area of the roof, the inverted ribs can siphon any remaining water into these channels and eliminate almost all water pooling on the roof.

Tandem Building Products™’ roofs are engineered for 360º movement of the roof plane to accommodate expansion and contraction. In a conventional through-fastened metal roof, panels are screwed down to the infrastructure, creating resistance on every screw due to thermal movement. In conventional standing seam metal roofs, clips only account for longitudinal expansion and contraction.

TBP™’s panels are anchored to our clip system which slides freely in all directions. Panels are free to move without resistance because they are not screwed down, they are anchored to our clip system that can adjust 360º as the metal grows from heat or shrinks from cold.

As seen in the video above, the Tandem® 360º Clip™ is not limited in the direction of expansion and contraction. This unrestricted movement of the roof system means there are no stresses exerted on the panel or its attachments. The no-stress movement allows the panels to last 2x-5x longer than conventional building systems.

The patented Tandem® 300™ design can be engineered to any wind-speed requirement while maintaining impact resistance. Conventional metal roof/wall systems fail in high winds that are mixed with large amounts of windborne debris. TBP™’s 22-gauge panels not only withstand the highest tornado wind speeds, but they also provide substantial resistance against impact damage because debris and hail cannot structurally damage the inverted ribs.