Standing Seam
We have created a guide for the installation of standing seam panels. The guide includes step-by-step instructions and helpful tips to ensure a successful installation. If you have any questions regarding the guide or if you need any assistance with the installation process, please do not hesitate to reach out to us.
Proper Storage
The panels and trim are crafted with paint and finishes that are specifically engineered to endure heavy rain and wet weather conditions. It is important to note that painted, galvanized, or Galvalume finishes are not intended for prolonged exposure to continuous water contact. If panels or trim are left wet during storage, damage may occur. Therefore, it is essential to store materials, which will not be promptly installed, in a dry location. In the
event of wetness, allow the material to air-dry and, if installation is not imminent, restack it appropriately.
Trimming and Cutting
Trimming and cutting steel panels along their profiles can be effectively done using nibblers, various shear attachments for drills, or hand-operated snips. For optimal results, it is recommended to cut from the bottom side of the panels to minimize any potential issues. After cutting, it is essential to promptly brush off any particles from the roof surface. When cutting panels lengthwise, one approach is to mark the cutting point, then use a straightedge and a sharp-pointed utility knife to score deeply along the length of the panel. Folding the panel along the score mark and, if necessary, bending it back should result in a clean break.
Panel Installation
Standing seam should be installed over a solid deck of OSB or Plywood. Standing Seam has the potential to oil can, or be wavy, on the flat part of the panels. This can occur due to the 16” or 17” flat area between the edges. Using striations or stiffening ribs can reduce the potential for oil canning to occur, but is not guaranteed to eliminate it.
In order to allow the panels to “hover”, center fasteners within the nailing flanges. Fasteners should be spaced 16” apart and driven in straight, as driving them in at an angle, can promote the formation of oil canning. Be sure there is an approximate 1/32” gap between the head of the fastener, and the metal nailing flange. (See illustration) Standing seam should be
installed over the manufacturer’s recommended form of substrate.
When installing standing seam, it is important to ensure there is room for vertical expansion between the panels. DO NOT over-tighten your fasteners! The panels should be fastened loosely, to allow them to “hover” against the substrate.
Installation of Mechanical Seam Clip
When installing mechanical standing seam, the panels are held down by fixed clips. The
clips should be spaced 16” apart and be secured by 2 pancake screws and screwed down.
Trim & Accessories
Standing Seam Profiles
Warranty: Lifetime (Limited) Film Integrity, 30-Year Chalk, 30-Year Fade (With certain exceptions and
limitations, explained in our Warranty Detail)
Gauges: 24G Standard see for available colors, 26G Texture limited colors.
Available Finishes: Akzo-Nobel Ceram-a-Star 1050 Select, HYLAR PVDF, SMP, Akzo Nobel Frost, Galvalume (Other finishes available by request)
Hemming the Panel
Ridge Detail
Ensure that the deck is clean and prepared for installation following the manufacturer’s instructions for underlayment. Proceed to install the panel, field bending the panel edge at a 45° angle to create a box end without cutting panel ribs. Apply 3/16″x7/8″ butyl tape to the Z closure and install it over the panel using 1″ pancake head fasteners spaced at 4″ intervals through the butyl tape, ensuring a minimum of 5 fasteners per panel. Apply a vertical bead of approved sealant behind the Z closure at the panel rib and tool it in. Install the hip or ridge cap by engaging it onto the Z closures, maintaining a minimum 4″ lap on the hip or ridge cap with approved sealant between laps and ensuring a minimum flashing length of 24″. Drill holes through the hip or ridge cap hem and Z closure using the correct size drill bit at 18″ intervals. Proceed to install stainless steel pop rivets through the hem of the hip or ridge cap, attaching it to the Z closure at 18″ intervals.
Eave Detail
Ensure that the deck is thoroughly cleaned and prepared for installation before proceeding. Follow the manufacturer’s instructions to install the underlayment. Place the eave flashing onto the roof deck and securely fasten it using 1″ pancake head fasteners at 6″ intervals. Ensure a minimum 4″ overlap on the eave flashings, sealing between laps with approved sealant, and maintain a minimum flashing length of 24″. Strip in the eave flashing with underlayment. Proceed to install the panels, engaging the panel hem onto the nose of the eave flashing while leaving the necessary gap for thermal expansion and contraction. Use hand seamers to carefully crimp the panel hem closed. Do not crimp the panels.
Gable Detail
Ensure that the deck is thoroughly cleaned and prepared for installation before proceeding, following the manufacturer’s instructions for underlayment installation. Install the panel, bending the panel edge 90° to match the Z closure height. Proceed to install a cleat on the rake face, securing it with 1″ pancake head fasteners spaced at 8″ intervals. Apply butyl tape to the Z closure and install it over the panel using 1″ pancake head fasteners spaced at 4″ intervals through the butyl tape. Maintain a minimum 4″ lap on the Z closure, sealing between laps with approved sealant. Install the rake flashing by engaging it onto the cleat and Z closure, ensuring a minimum 4″ lap on the rake flashing with approved sealant between laps. Stagger the laps between the Z closure and rake flashings by a minimum of 6″ and maintain a minimum flashing length of 24″. Drill holes in the rake flashing hem and Z closure using the correct size drill bit at 18″ intervals. Proceed to install stainless steel pop rivets through the hem of the rake flashing, attaching it to the Z closure at 18″ intervals.
Endwall Detail
Ensure the deck is thoroughly cleaned and prepared for installation, adhering to the manufacturer’s instructions for underlayment installation with the underlayment extending a minimum of 3 inches up the wall. Install the panel, field bending the panel edge at a 45° angle to create a box end without cutting panel ribs. Apply butyl tape to the Z bar and install it over the panel using 1″ pancake head fasteners spaced at 4″ intervals through the butyl tape, ensuring a minimum of 5 fasteners per panel. Apply a vertical bead of approved sealant behind the Z closure at the panel rib and tool it in. Apply butyl tape on the backside vertical leg of the headwall flashing. Engage the headwall flashing over the Z closure and attach it to the wall using threaded anchor screws at 16″ intervals through the butyl tape. Drill holes through the headwall flashing hem and Z closure using the correct size drill bit at 18″ intervals. Proceed to install pop rivets through the hem of the headwall flashing, attaching it to the Z closure at 18″ intervals. Apply butyl tape on the backside of the counter flashing and attach it using self-sealing threaded fasteners at 24″ intervals. Apply approved sealant above the counter flashing caulk edge and tool it in. Maintain a minimum 4″ lap on all flashings with approved sealant between laps and ensure a minimum flashing length of 24″. Stagger the laps between headwall and counter flashings by a minimum of 6 inches.
Sidewall Detail
Ensure that the deck is clean and prepared for installation, adhering to the manufacturer’s instructions for underlayment installation, ensuring that the underlayment extends up the wall a minimum of 3 inches. Proceed to install the panel, field bending the panel edge 90° to match the Z closure height. Apply butyl tape to the Z closure and install it over the panel using 1″ pancake head fasteners spaced at 4″ intervals through the butyl tape. Then, apply butyl tape on the backside vertical leg of the sidewall flashing. Engage the sidewall flashing over the Z closure and attach it to the wall using threaded anchor screws at 16″ intervals through the butyl tape. Drill holes through the sidewall flashing hem and Z closure using the correct size drill bit at 18″ intervals. Proceed to install stainless steel pop rivets through the hem of the sidewall flashing, attaching it to the Z closure at 18″ intervals. Apply butyl tape on the backside of the counter flashing and attach it using self-sealing threaded fasteners at 24″ intervals. Apply approved sealant above the counter flashing caulk edge and tool it in. Maintain a minimum 4″ lap on all flashings with approved sealant between laps and ensure a minimum flashing length of 24″. Stagger the laps between Z closure, sidewall, and counter flashings by a minimum of 6 inches.
Slope Transition Detail
Ensure the deck is clean and prepared for installation before proceeding to install the underlayment according to the manufacturer’s instructions. Begin by installing the lower panel, field bending the panel edge at a 45° angle to create a box end without cutting the panel ribs. Apply butyl tape to the Z closure and secure it over the panel using pancake head fasteners spaced at 4″ intervals through the butyl tape, with a minimum of 5 fasteners per panel. Apply a vertical bead of approved sealant behind the Z closure at the panel rib and tool it in. Place continuous support flashing over the lower panels, fastening it to the upper roof deck high flute with #10×1″ pancake head fasteners spaced at 12″ intervals, ensuring the flashing has the required slope. Engage the transition flashing onto the Z closure and fasten it with 1″ pancake head fasteners spaced at 6″ intervals, ensuring a minimum 4″ lap on transition flashings with approved sealant between laps and a minimum flashing length of 24″. Apply butyl tape to the offset cleat and install it over the transition flashing using 1″ pancake head fasteners spaced at 4″ intervals through the butyl tape. Strip in the offset cleat and edge of the transition flashing. Install panels and engage the panel hem onto the offset cleat, leaving the required gap for thermal expansion and contraction, then crimp the hem closed carefully using hand seamers. Drill holes through the transition flashing hem and Z closure at 18″ intervals using the correct size drill bit. Install stainless steel pop rivets through the hem of the transition flashing, attaching them to the Z closure at 18″ intervals.
Valley Detail
Ensure the deck is thoroughly cleaned and prepared for installation according to the manufacturer’s instructions, including the installation of underlayment. Place the valley flashing centered in the valley and tack it in place using a 1″ pancake head fastener at 3′ intervals. Maintain a minimum valley lap of 12″ with two rows of approved sealant in the lap, and ensure a minimum flashing length of 24″. Apply butyl tape to the offset cleat and install it over the valley flashing using 1″ pancake head fasteners at 4″ intervals through the butyl tape. Maintain a minimum 6″ cleanout between the center of the valley and the offset cleat. Strip in the offset cleat and edge of the valley flashing. Proceed to install the panels, engaging the panel hem onto the offset cleat, leaving the necessary gap for thermal expansion and contraction.
Shed Ridge Detail
Ensure that the deck is clean and prepared for installation according to the manufacturer’s instructions, including the installation of underlayment. Install the panel, field bending the panel edge at a 45° angle to create a box end without cutting panel ribs. Proceed to install a cleat on the peak face and fasten it with 1″ pancake head fasteners spaced at 8″ intervals. Apply butyl tape to the Z closure and install it over the panel using 1″ pancake head fasteners spaced at 4″ intervals through the butyl tape, ensuring a minimum of 5 fasteners per panel. Apply a vertical bead of approved sealant behind the Z closure at the panel rib and tool it in. Install the peak flashing by engaging it onto the cleat and Z closure, ensuring a minimum 4″ lap on the peak flashing with approved sealant between laps and maintaining a minimum flashing length of 24″. Drill holes in the rake flashing hem and Z closure using the correct size drill bit at 18″ intervals. Proceed to install pop rivets through the hem of the rake flashing, attaching it to the Z closure at 18″ intervals.
Gambrel Detail
Ensure the deck is clean and prepared for installation before proceeding to install the underlayment according to the manufacturer’s instructions. Begin by installing the lower panel, field bending the panel edge at a 45° angle to create a box end without cutting the panel ribs. Apply butyl tape to the Z closure and secure it over the panel using 1″ pancake head fasteners spaced at 4″ intervals through the butyl tape, with a minimum of 5 fasteners per panel. Apply a vertical bead of approved sealant behind the Z closure at the panel rib and tool it in. Place continuous support flashing over the lower panels, fastening it to the upper roof deck high flute with 1″ pancake head fasteners spaced at 12″ intervals, ensuring the flashing has the required slope. Engage the transition flashing onto the Z closure and fasten it with 1″ pancake head fasteners spaced at 6″ intervals, ensuring a minimum 4″ lap on transition flashings with approved sealant between laps and a minimum flashing length of 24″. Apply butyl tape to the offset cleat and install it over the transition flashing using 1″ pancake head fasteners spaced at 4″ intervals through the butyl tape. Strip in the offset cleat and edge of the transition flashing. Install panels and engage the panel hem onto the offset cleat, leaving the required gap for thermal expansion and contraction, then crimp the hem closed carefully using hand seamers. Drill holes through the transition flashing hem and Z closure at 18″ intervals using the correct size drill bit. Install pop rivets through the hem of the transition flashing, attaching them to the Z closure at 18″ intervals.
Pipe Penetration Detail
To install a pipe through a panel with a ½ inch gap around it, follow these steps: Cut a round opening in the panel, leaving the desired gap. Apply a continuous bead of tube sealant around the base of the pipe at the panel surface. Ensure to use EPDM pipe flashing (or siliconized pipe flashing for high-temperature pipes) with an integral aluminum base ring. Cut an opening in the top of the pipe flashing slightly smaller than the pipe diameter. Apply another continuous bead of tube sealant to the bottom of the pipe flashing base. Install the boot over the pipe and position the base against the panel surface. Proceed to secure the pipe flashing by installing self drilling screws with washers around its base at 1-inch intervals. Apply a
continuous bead of tube sealant around both the top and base of the pipe flashing. These steps will ensure
a proper seal and secure installation of the pipe through the panel.