There are a lot of factors to consider before pulling the trigger on a new solar PV system installation–a big one being how it will affect your roof replacement timeline.

A standard asphalt roof should last about 15-30 years before being replaced, while metal roofs can prolong that to 45 years.

A roof evaluation is essential before getting any panels installed. At Polaron, we offer all our customers a site assessment report before moving to the application and installation stages. We have technicians examine your roof pitch, roof diameter, azimuth and determine the overall condition. Suppose your roof is toward the end of its lifespan or any major issues become evident. In that case, we strongly suggest replacing the roof first to avoid any future burdens of needing to get it redone after installing the panels.

A new roof and solar panel system can go hand in hand. The new roof should be able to last as long as the lifespan of the solar system, meaning no extra inconvenience of getting it replaced in the future.    

The Cost of Replacing a Roof Post-Installation

Shingles can be replaced after a system has already been installed. If a roof is not properly assessed and a replacement is needed, the cost of removing and re-installing the panels falls entirely on the homeowner. The cost can vary depending on the size of a system and whether the mounting material needs to be removed along with the panels. This process can cost homeowners anywhere between $1500 to $6000 without taking into account the cost of actually replacing the roof shingles, which can add another $5000 to the total amount.

It can be an expensive and time-consuming hassle if not done correctly which is why we always recommend replacing beforehand. Generally, it’s best to contact your original solar installer as they would be most familiar with the hardware and installation of your system.

Are Solar Shingles a Good Option?

Although solar shingles might seem like an easy solution if a roof replacement is necessary, it’s actually not the best option. Solar shingles are far less efficient than panels and would cost a lot more to install–about twice as much as an average solar panel system. Even with a roof replacement on the horizon, it would be hard to justify the long-term economic benefits of installing solar shingles. 

Because of this, solar shingles are a lot more limited, and not many companies offer installations in the first place. It would be far harder to find and compare quotes to evaluate what a good deal is for your roof.  

You can also replace a broken panel with similar electric characteristics from a different manufacturer. However, the technology for shingles is proprietary, meaning customers would be entirely bound to the manufacturer of the shingles. As of now, there are only two leading manufacturers; Tesla and Luma. If the manufacturer you choose decides to leave the solar shingle business one day, it would be difficult to find replacements should any of the shingles stop performing. 

 Are Panels Worth It If My Roof Needs Replacement? 

Adding the cost of replacing roof shingles with an already expensive new solar PV system can seem scary.

Solar panels are long-term investments and keep rising utility costs at bay. Newer solar panels are projected to exceed their 25-year warranties, lasting 30-40 years, with degradation flattening after the first five years. Generating your own electricity can heavily offset power bills, saving thousands of dollars over the years. Even with a roof replacement underway, a solar system can more than pay for itself and your brand new roof shingles throughout its lifespan.  

Huge upfront costs for systems don’t always have to be the case either. Financing and leasing options are entirely viable and remove the financial strain of paying for two home improvement upgrades in a short period.

Our 0% financing program aims to remove economic hurdles by having your monthly financing payments replace your power bill costs. With the right roof, savings could actually outpace costs by the first month. Financing a system allows for fixed monthly payments, protecting homeowners from persistently rising electricity costs. A typical term can last anywhere between 12 to 16 years, depending on the province. Once the financing term is done, the panels belong completely to the homeowner to enjoy steady savings for the remainder of the panel’s lifespan. 

Another fact to consider is that panels can actually prolong the lifespan of the shingles underneath. A system will add an extra layer of protection to the part of the roof that the panels are installed on top of.

Qualify today for a FREE estimate to see your potential solar savings. If you sign on, we provide a personalized site assessment report where we thoroughly inspect your roof's overall construction and structural integrity, along with the electrical components. Understanding these aspects allows you to decide on the best course of action to take on your roof and solar journey.



Guide to Roofing Costs & Estimates in Canada 

Roofing With Solar Panels: Overview And Options | EnergySage

How Does A Roof Replacement With Solar Panels Work?

Solar shingles vs solar panels: which is best for your home? (