V-Line General Installation

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Installation steps

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.)

Fasten Vertical Perimeter Extrusions

The vertical perimeter extrusions are normally the first extrusions to be fixed to the wall. The building wrap/envelope must be completed to spec before anything goes on the wall. Layout End Frame extrusions according to the desired location. Ensure frames are level and plumb before fastening. Consult the fastener specifications guide in this binder to determine fastener type and spacing.


Work flow is always from the bottom up. Place the first fastener near the bottom of the vertical extrusion. Once the piece has been leveled, add a second near the top fixing it in place. Add subsequent fasteners according to the fastener guide spacing. An Outside Corner Frame, Inside Corner Frame, or a Perimeter Frame Assembly may be used in place of the End Frame for vertical applications. The End Frame is shown here only to keep the scope of this guide relatively simple.

Fasten Horizontal Baseline Extrusions

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

The method of install will vary from the vertical components as the horizontal baseline back plates will need to be segmented to keep a functioning rain screen through the system. To function as a rain screen you need to follow the 20/80 rule. At any cross section only 20% of the horizontal plane may have and extrusion attached, and 80% of the horizontal cross section need to be open. To make it easy pre-cut, and pre-drill all back plate components at 3.2” (81mm) and install them at every 16” on center.


Fasten Horizontal Upper Extrusions

The final perimeter extrusion to be attached is the Upper Horizontal back plate. This is the ONLY extrusion that may be used to terminate the system when running V-line in a horizontal application. The snap lock assembly is crucial to function, fit and finish.

Unlike the Baseline row of segmented back plates, the upper row may be installed as a solid piece. Leave each end with approx. 3” gap from verticals to allow for proper top cap installation.


Engage Baseline Flat Cap

The flat cap needs to be cut to size and engaged using an AL13 SLED before the first row of V-line plank may be installed. A properly fit cap should tuck under both verticals leaving approx. a 1/8” gap on either side to allow for contraction and expansion. If a butt joint is required due to the length of the flat cap exceeding 8’, the butt joint MUST occur on a shared back plate segment.

It is only necessary to engage flat cap where the back plate is present. Impacting the flat cap in the voids, between back plates, may cause deformation of the top cap.

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Installing V-line Plank

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The v-line board is to be cut to fit between the vertical frame components. A properly cut to fit plank should have a 1/8” gap from each vertical either side should be allowing for contraction and expansion.

It is essential the first row of v-line be tucked behind the Vertical tab of the frame components so that the fastening tongue is pointed upwards and the groove is pointing downwards. The t-tab on the back of the v-line plank should firmly rest on the feet of the segmented back plate extrusions.

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Once the v-line plank has been fitted and leveled to an even plane. It will be secured by attaching a AL13 system clip to the upwards pointing tongue. The narrow face of the clip should be pointing away from the wall. Make sure the clip is fully inserted before adding fastener to the through- hole. The function of the clip is to secure the plank in place while spacing it from the wall. The fastener will not penetrate the v-line plank itself. This will allow each v-line plank contract and expand through the full temperature spectrum. A clip and fastener are to be attached to each v-line plank once every 32” MAX. A minimum of one system clip is required per V-line plank.

The maximum consecutive run of V-line plank will be 36’ without a vertical break. (End frame, flat cap, or reveal cap assembly) If the required v-line length exceeds 12', butt jointing two planks together will be required. A single system clip is to be used at the seam of the butt joint to ensure a precision fit. As we still need to account for contraction and expansion yet require a tight butt seam. The v line planks must have MAX ¼” gap at each side of the vertical break.

Installing the final row of V-line Plank.

The final or top row to be installed will require the v-line plank to be ripped to width by a table saw to its appropriate dimension. Due to this, the top rows installation will vary from the regular installation.

The top row does not require the system clip to be held in place with a fastener. The top row of V-line plank will be held in place by securely engaging the perimeter flat cap or reveal cap. A system clip is stillused, but it is clipped on to the perimeter back plate assembly. It functions as a spacer only.


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To secure the final row, A perimeter cap must be cut to length to fit behind the vertical frame extrusions. A proper fit should allow for a 1/8” gap on either side to allow for contraction and expansion. The perimeter cap should be hammered in place using an AL13 SLED with a rubber mallet.

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This general 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 clearest and direct manner, there are a few standard situations that are not covered in this guide. These situations are shown in detail in the corresponding drawings section within our Wiki or product encyclopedia.