Woodframe sheathing is an ideal substrate to install the AL13™ system upon. When designing for the system to be installed on a sheathed substrate, the following points are recommended:
- 1 Installation steps
- 2 Typical Details
- 2.1 Vertical Joint
- 2.2 Vertical End
- 2.3 Horizontal Joint
- 2.4 Inside Corner
- 2.5 Outside Corner
- 2.6 Parapet - Top of Wall
- 2.7 Horizontal Transition
- 2.8 Soffit - Top of Wall
- 2.9 Soffit - Fascia
- 2.10 Bottom of Wall
- 2.11 Non-Perpendicular Inside Corner
- 2.12 Non-Perpendicular Outside Corner
- 2.13 Intersection Cut-Away
- 3 Fasteners
The first part of the installation guide will outline a basic install on a flat wall as illustrated below in its completed form. The subsequent drawings section will outline more intricate details like inside corners, outside corners, windows, doors, overhangs and build-outs. (Please ensure to have read the General Install section first.)
Laying Out the Grid
Using the chosen layout, determine the best suited datum - or starting point - shown here as the lower left corner. Lay out the panel grid using chalk lines (or similar) from the datum point, ensuring that all lines are plumb and level.
Fastening Vertical Perimeter Extrusions
The vertical perimeter extrusions are normally the first extrusions to be fixed to the wall. The building wrap/envelope must be complete to spec before anything goes on the wall. Lay out End Frame extrusions according to the marked grid lines, ensuring frames are plumb before fastening. Consult the fastener specifications guide in this binder to determine fastener type and spacing.
For optimum workflow it’s best to work from left to right, bottom up. Place the first fastener near the bottom of the extrusion and continue fastening upwards according to the fastener guide spacing. Only fasten the extrusion up to the height of the first row of panels.
- An Outside Corner Frame, Inside Corner Frame, or a Perimeter Frame Assembly may be
used in place of the End Frame in this situation. The End Frame is shown here only to keep the scope of this guide relatively simple.
Fasten Horizontal Baseline Extrusion
A horizontal End Frame is the next component to be installed. This will establish the horizontal datum - and will be a reference to subsequent extrusions - so it is important that it is mounted level. Consult the fastener specification guidelines to establish fastener type and spacing. To allow for adequate water drainage, the extrusion will require weep holes to be drilled, 1/4” (6 mm) every 16” (406 mm) on center (or otherwise specified by the project plans).
If one length of the End Frame extrusion is not long enough to span the distance required, it is necessary to use a second piece and butt the two together. Take care in aligning butt joints so that they are flush, shim as needed. At the intersection of vertical and horizontal End Frames, the horizontal End Frame shall sit under the tab of the vertical End Frame.
Fasten Back Plates
The Panel Frame Assembly consists of two parts; the top cap, and the back plate. The first piece to be installed is the back plate. Consult the fastener specification guidelines to establish fastener type and spacing.
In this example, the workflow is starting from the lower left corner and completes each row before moving up the wall. To accommodate the first panel, install the back plates on the grid lines. When back plates intersect each other, it is required to leave a minimum gap of 1.5 in (38 mm).
- When fastening the back plates, the fasteners must alternate flanges.
Fasten Panel Spacers
The Panel Spacers are installed vertically on the wall to space the panel away from the substrate and stiffen the panel across the center. Consult the fastener specification guidelines to establish fastener type and spacing. Ensure that the two centermost Panel Spacers are positioned closer together - approximately 6” - 8” (157 - 203 mm) on center - and apply the adhesive tape full length to the outer flange of the Panel Spacers as illustrated.
The Panel Spacers should be cut to fit so that they sit a couple inches away from the nearest frame component. The ends of the outermost Panel Spacers may also be bent slightly away from the wall to increase the pressure acting on the panel towards the underside of the extrusion tabs. This helps to ensure that the panel sits tightly in the corners where the extrusions tuck under one another.
ACM Panel Fit
The ACM Panel may need to be cut down if a smaller size from the standard 4’ x 8’ (1220 x 2440 mm) is required. This may be done on a standard circular saw, or table saw - so long as a metal blade is used - using a guide to ensure cuts are straight and clean. The protective film should be peeled back approximately 1” (25 mm) from the edges, but should remain on the panel otherwise. Gloves should be worn to keep panel clean and to protect hands from sharp edges.
Once a panel is ready to be fit, it may be taken off the stack. Make sure not to drag sheets across, rather lift the sheet up off the stack then away. Although the panels have a protective film applied from the factory, reckless panel handling may cause damage to panel through the wrap. It is recommended that at least two persons carry one sheet. First, position panel on its long edge, lift it up and place in the horizontal End Frame. Second, rotate panel towards wall. Third, once panel is flush, slide the panel under the tab of the vertical End Frame.
- The panel should sit halfway under each tab
- Suction cups are also recommended for installing panels
After the ACM Panel has been shifted into the correct position, press panel down on the center to adhere the panel to the adhesive tape. The top cap is the second part of the two part Panel Frame Assembly which is snapped into place with a rubber mallet and the AL13™ SLED.
Once the top cap is cut to the appropriate length, it may be hammered into place with a rubber mallet and the AL13™ SLED. When a horizontal top cap intersects a vertical End Frame, it should slide under the tab - allow for the same interface for when the vertical top cap is installed. Continue workflow to the right and repeat previous steps for remaining panels on the first row of wall. For all other remaining rows repeat steps 1.4 to 1.7.
- The horizontal top cap should sit halfway under the tabs of the vertical frame components, in
the same manner as the panel. Therefore, the horizontal top cap may be cut and positioned to match the panel.
Installing Upper Panels
Before fitting the panel ensure that all the required Panel Spacers, adhesive and back plates are installed. A horizontal End Frame must also be installed along the top of the wall before any panels are fitted. The top two panels in a column must be installed sequentially since the top of wall terminates under the Horizontal End Frame and would be unable to be installed if the top cap was already installed along the bottom edge as well.
First, install lower panel as per steps laid out in 1.6 and hold in place while second panel is fitted. Second, slide upper panel up under the tab of the horizontal End Frame. Third, rotate panel towards wall until flush. Fourth, slide panel underneath the vertical End Frame.
After the ACM Panel has been shifted into the correct position, press panels down on the center to adhere the panels to the adhesive tape. The top cap is the second part of the two part Panel Frame Assembly, and is snapped into place with a rubber mallet and the AL13™ SLED.
Once the top cap is cut to the appropriate length, it is to be hammered into place with a rubber mallet and AL13™ SLED. When a horizontal top cap intersects a vertical End Frame, it should slide under the tab. Allow for the same interface for when the vertical top cap is installed. Continue workflow from left to right as required, installing the top two panels at one time.
Once two adjacent columns of panels have been installed, the top cap may be installed. The top cap is the second part of the Panel Frame Assembly which is snapped into place with a rubber mallet and the AL13™ SLED.
First, slide the top cap underneath the tab of the lower horizontal End Frame. Second, rotate top cap towards wall. Third, hammer top cap in place with a rubber mallet and the AL13™ SLED. If one length of the top cap extrusion is not long enough to span the distance required, it is necessary to use a second piece and butt the two together. Take care in aligning butt joints so that they are flush, shim as needed (do not butt two top caps at an intersection, where no back plate is present.)
Finish & Inspect
Once the install is complete, work from the top down to remove the protective plastic film and clean panels as required. Take note of any installation flaws and ensure all top caps are fully hammered into place. Ensure that the protective film is removed within 60 days of installation.
The Generic Install guide is intended to show the best practices for a basic install and how the various components work together. It is outside the scope of this manual and impossible to anticipate & outline every installation situation that may be encountered. In order to present the install in the most clear and direct manner, there are a few standard situations that are not covered in this guide. These situations are shown in detail in the following Drawings section, however the below guide will describe how they would install relative to this guide.
1. End Frame: Generally installed in a vertical or horizontal orientation and is used to terminate the wall system or butt/transition to another wall surface. May be used to butt up to the frames of windows, doors or any other protrusions and recesses in the wall surface.
2. Inside Corner Frame: Generally installed in a vertical orientation and is used to transition the wall system across a 90° inside corner. May be installed in the same sequence and manner as the Vertical End Frame.
3. Outside Corner Frame: Generally installed in a vertical orientation and is used to transition the wall system across a 90° outside corner. May be installed in the same sequence and manner as the Vertical End Frame.
4. Panel Frame Assembly: Installed both horizontally & vertically and is generally installed between adjacent panels.
5. Perimeter Frame Assembly: Installed both horizontally & vertically to terminate the system, used as an alternate to the End Frame as desired. May be used to butt up to the horizontal or vertical frames of windows, doors or any other protrusions and recesses in the wall surface.
In general, the vertical extrusions carry through and the horizontal extrusions are segmented and tuck under the tab of the verticals. Please consult AL13™ should there be any questions regarding specialized configurations that are not covered in this installation guide or in the drawing section.
These are some drawings that illustrate some typical details of the AL13™ system. To download these in CAD format please visit the main website.
Parapet - Top of Wall
Soffit - Top of Wall
Soffit - Fascia
Bottom of Wall
Non-Perpendicular Inside Corner
Non-Perpendicular Outside Corner
AL13™ GENERAL INSTALLATION SPECIFICATIONS: For sheathed wood frame, AL13™ installs directly on building wrap. The mechanical fasteners anchor into building sheathing and studs where available.
AL13™ FRAME COMPONENTS: System frame components are installed with mechanical fasteners, with a minimum of 2 fasteners per piece. See fastener specs for more details.
AL13™ PANEL SPACERS: The panel spacers are installed with mechanical fasteners every 8” (203 mm) on center, mounted vertically every 12” to 18” (305 - 457 mm) on center with a minimum of 2 fasteners per piece - and the two middle hangers mounted 8“ (203 mm) on center. For narrow panels, a minimum of two panel spacers are required.
AL13™ PANELS: Panels are fastened by the frame tabs around the entire perimeter. No traditional mechanical fasteners are required in the panel itself.
AL13™ ADHESIVE TAPE: Acrylic adhesive tape (two sided) is applied full length to the two middle panel spacers - that are placed 8” inches (203 mm) apart - to secure the panel during installation*.
- The adhesive tape is redundant for fastening purposes.
Fastener layout will vary by project depending on the location and the subsequent wind loading for that region. The Canadian National Building Code specifies wind pressure design loads to be determined from statistically averaged wind speeds from across the country over a number of years. The wind load used for design is an hourly wind speed that has a chance of 1 in 50 of being exceeded in any given year plus a factor to take into account for structure height. The chart below depicts the hourly wind pressures in major centers in Canada. (1 in 50):
The structural design values must be determined by following procedures outlined by the local building code. The pressure values listed in the table above (for reference only) are then modified based on local topographical conditions, building construction, and building height (having the greatest effect on wind pressure).
The table below provides the fastener spacing (in inches) for the frame components based on substrate and wind load design pressure.
This table is to be used as a guideline only, and not for engineering purposes. Each project is unique and warrants a review of local building codes and/or hiring of an engineering consultant firm.
When using the AL13™ specified fasteners, care must be taken to install as per the manufacturer’s recommendations to achieve the desired strength. All wood fasteners must fully penetrate the sheathing, with the point of the screw not included.
AL13™ recommends the use of AL13™ #12 Tredecim-coated mini drill-point fasteners with EPDM washers. Refer to the fastener table for center-to-center spacing.
The fastener spacing table refers to the distance between fasteners on the same flange. For frame components with two flanges (inside corner frame, outside corner frame, and main panel frame assembly) the fastener layout is applied to each flange separately, and it is important to stagger the fastener layout.