This guide is tailored for homeowners in India with asphalt shingle roofs. We'll explore how to effectively combine this specific roofing material with solar power, navigating the benefits, challenges, and crucial steps involved in powering up your shingle roof – and your home.
We live in a time when our roofs can be a source of energy that fuels our house or establishments. Solar energy is not something new but lately this has become a driving force. Not just your friends and family but also the government is asking you to adopt solar energy for your buildings. Many of you have already started using this and some of you may be considering this. Now if you are planning a new construction and your chosen roofing material is shingles, or you already have a roof made of shingles, this is the blog for you. Here we will discuss how to incorporate solar panels on your shingles roof.
Understanding your roofing shingles
Though very popular in the West, Shingles are relatively new in India. Considering the size of the country they are neither very common roofing option. Since they are new with hardly 10 to 15 years in the market, we are yet to understand how they behave in long term in the Indian climate as well as what all kinds of shingles are available in the market. There are many prominent brands as well as cheaper inferior quality circulating in the market. The performance of the shingles depends on their type, make and composition. Most common shingles available in the market are bitumen or asphalt shingles. They are again divided into single layer and multi-layer shingles. Multi layered shingles offer better features and have a higher lifespan.
Even though manufacturers claim a warranty of 15 to 50 years for these shingles, we need to wait and watch how they perform in the varying climate we have in India. This is why regular inspections of your shingles roof is very important, especially before you mount your solar panel.
Factors to consider for installing solar panels on your shingles roof
Structural Integrity
You need to ensure that the shingles roof deck and the structure beneath it is sound enough to mount the solar panels and bear its load.
Condition of the roofing shingles
If your shingles are over 10-15 years old in the Indian climate, a thorough inspection is recommended. Look for curling, cracked, buckling, or missing shingles. Check for any visible leaks under the roof. If leaks are found, take necessary steps to address the concern.
Waterproofing
Solar installation on shingles involves drilling for mounting the panels which can result in holes. Ensure that these holes are perfectly sealed to prevent leaks, especially critical during India's heavy monsoons. A compromised or old shingle roof is more vulnerable to wear and tear during installation of solar panels.
Installer Selection
While selecting someone to install the solar panels, check if he has experience working with shingles roof. A person who has no experience with shingles roof may cause damage or ignore possible vulnerabilities of the roof. Ask them about their methods for flashing and waterproofing on shingles, and if they offer workmanship warranties covering potential leaks related to their installation. Don't compromise on quality for a slightly lower price.
Panel Selection
There are numerous manufacturers out there dealing with solar panels. Look for feedback from other users. Select a reputable manufacturer. Also consider the power efficiency of the module and warranty. Some manufacturers offer a maintenance package as well.
Energy Needs & Space
Ensure the system size and output meets your needs and fits optimally on the available sunny, unshaded areas of your shingle roof. Make sure the panels are placed on the right side of your roof to get maximum sunshine and there are no trees or other shades nearby.
Secure permits & utility NOC
In India, apply via the national solar portal or DISCOM’s site; typical approval 15–30 days.
Conclusion
Having an asphalt shingle roof in India places you in a somewhat unique category, but it certainly doesn't exclude you from the benefits of rooftop solar power. By thoughtfully integrating solar power with your home, you are not just installing solar panels; you are securing lower energy bills as well as, contributing to a cleaner environment. If you take care of the specific requirements for installation on this material, particularly the critical importance of waterproofing and finding experienced installers, you can confidently move forward.