Learn How to Install Solar on Stone Coated Steel Roofs:

By Mikey Wiener, Marketing Manager, QuickBOLT

QuickBOLT recently joined Pete Croft, Brand Manager for Unified Steel™ to observe a solar installation on a Western roofing systems, PINE-CREST Shake Stone Coated Steel Roof Installed in California. There we learned tips and tricks for improving the installation efficiency for a solar installation on this type of roof material.1

In a nice twist we first learned what NOT to do by looking at the house next-door, how handy! Many contractors in today’s market mistakenly believe that in order to install solar on a stone-coated steel roof, they must first remove the stone-coated steel and then install asphalt shingles to create a flat area for the new solar system. to install. See the image below for an example.

Rooftop installers we visited easily disproved the belief we mentioned above. They have shown that the exact opposite is true: you can install solar energy on stone-coated steel roofs without penetrating the roof panels or removing the roof. not at all.

In this article, we’ll show you how to accomplish this seemingly “impossible” task.

The photo above shows the roof after the installers were done and with the same roofing material still installed. Whether you are installing solar on new construction or a renovation, the steps in this article follow the same general path. We’ll look at those steps from a retrofit perspective and share some pro tips along the way.

*Pro tip* – How to walk on stone coated steel:

Walk on the nose of each panel overlapped. This is the strongest point between each panel and will easily support your average strong roofer/solar installer. Even if you step in the wrong place, the panel can be removed, reshaped and reinstalled. The main reason installers tell us they don’t like working with metal tiles/Stone Coated Steel roofs is that they are afraid they will damage the roof.

The following details show how easy it is to install solar on a stone-coated steel roof – it’s about where you place your feet and is similar to walking on concrete and clay tiles.

Installation steps:

Step 1: Locate and mark the solar system rail positions on the roof

Step 2: Detach the panels

Prepare the roof by loosening the nose of the overlapping panels. You only need to detach the bottom as the panels are flexible enough to bend up. Leaving the rear fasteners in place will make this easier. Stone Coated Steel roofs are installed in three ways:

  • Panel SLATS (2×2)
  • Panel BATTENS (2X2) and Counter-BATTENS (1×4)
  • Panel DIRECT-to-roof deck (no battens)

This particular Unified Steel™ installation is installed Direct-to-Roof Deck.

Step 3: Lift the panels

After removing the fasteners, lift the panel enough to pull it up. One advantage of steel roofs is their flexibility, and when it comes to solar retrofitting, you can easily bend the panels upwards without damaging them.

*Pro tip*
crowbar wedge. We’d never seen this one before, but thought it was brilliant – for extra space, work on your crowbar under the now lifted roof panel, giving you plenty of room to get your drill in comfortably.

Step 4: Locate rafters and pre-drill

Find the rafters. If the eaves are open, you can usually identify the rafter position by the exposed rafters visible under the eaves. Place your QuickBOLT solar mounting brackets on the rafter line, then pre-drill two pilot holes for mounting screws.

Everything of QuickBOLT’s Hook SKUs have variations available with or without mounting screws, Unifed Steel™ offers the hooks with two 5/16” x 3” screws per hook. QuickBOLT’s wood division Quickscrews is an expert in specialty wood screws, producing the smoothest screws you’ll ever use.

Step 5: Add Some Kit for Extra Size!

Sealant is a welcome addition to pilot holes as it maintains the integrity of the original underlayment. When it comes to Unified Steel™ Stone Coated Steel roofs, QuickBOLT Solar Mounts are installed without making any penetration through the Unified Steel™ panels. By widening the nose of the top cover panel directly above the solar mount, the arm of the support easily extends between the panel layers – see step 8 for a photo example. When the cover panel is attached, the system does not require soldering to provide a weatherproof seal around the bracket. As always, you should consult your local AHJ to find out what it takes to get permission.

Step 6: Drill, Baby, Drill

Tighten those screws until the mount is secure and move on to step 7!

Step 7: Lower and Reattach the Panels

*Pro tip*
Walk it back down. You can lower the panels back into place by walking over the panel nose as this will put them back in place so you can reinstall the fasteners.

Step 8: Attach the Solar System Rails

Step 9 and beyond: Attach your solar panels.

This step is beyond the scope of this article and will vary widely depending on the solar panels used in your installation. Below is a photo of the finished roof.

See install in action:

Solar Mount 17640 the fruit of collaboration – coming soon!

We developed our latest assembly – 17640 – with the help of Unified Steel™, and the solution shows how collaboration can benefit the entire roof/solar industry. We took the arm off our SCS hooks, which were designed to bridge the overlap on Stone Coated Steel roof panels, and attached it to the wide base used in our Curved Tile solar panels. The wide base allows installers to screw into the rafter and adjust the arm to the location of the barrel on curved profile models.

1 Westlake Royal Roofing LLC is a tile manufacturer. Westlake does not manufacture solar panels, nor does Westlake install solar panels, nor does Westlake present itself as an expert in solar panel installation. Westlake and its marketing affiliates are not responsible for the use of the information in this article, or any method mentioned, and readers should determine for themselves whether the methods described are appropriate for their projects. No warranty is made with respect to anything stated herein, and nothing herein waives Westlake’s terms of sale for Unified Steel™ products.

Sponsored Content by QuickBOLT

Comments are closed.