Asphalt shingle tiles are made of granules that play an essential part of our roofs. Besides providing our roofing with aesthetic appeal, these bits also protect the integrity of roof shingles from outdoor elements.

However, there will come a time when your home’s roof shingles will begin shedding their granules. Does this mean there’s a problem with your roofing?

Let’s learn more about granule loss in shingles and why they happen.

Reasons for Granule Loss in Asphalt Roof Shingles

It’s quite normal for roof shingles to shed granules, and there are many reasons why this happens. It’s important to know these reasons, so you can recognize whether your roof’s granule loss is normal or not.

These are the main reasons why your asphalt roof shingles are losing their granules:

1. You Just Installed a New Roof

Granule loss can happen to recently installed roofing, but this doesn’t automatically mean that there’s a problem with it. The granules you’re seeing from the new asphalt are most likely just excess that were loosened by the roofers.

During the roof installation, some granule loss is to be expected. However, this should decrease as time goes by.

If you start noticing continuous granule shedding, then you might have a problem.

2. Your Asphalt Roof Shingles Are Old

As your asphalt roof shingles age, their quality will slowly decline, and they might start to shed granules. This is only natural; the constant sun and weather exposure can cause the roof to have decreased flexibility in the long run.

It’s important to note that asphalt shingles will start experiencing gradual loss of granules eventually. This is common in old shingles and is nothing to be worried about. You might even notice that some granules will break free occasionally from your shingles.

If you notice your roof shingles are starting to experience rapid loss of granules, it’s vital that you fix any issues as soon as possible. There are times when foot traffic can lead to shingles and granules loosening up and falling off.

Roofing systems are more prone to having severe granule loss as they grow older. That’s why it’s best to replace your old asphalt roof shingles to avoid the consequences of severe granule loss.

3. Your Roof Has Been Damaged by Hail

Hailstorms can damage your asphalt roof, causing it to lose granules. Eventually, your roofing system may even produce pitting or pockmarks that are unsightly. Constant hail damage will gradually reduce the lifespan of your roof and lead to problems later on.

If you’ve experienced a hailstorm or two recently, it’s best to get an assessment from a roofing professional. They can check the severity of the damage and let you know if your roof needs repair — or even a new set of shingles.

Even if your roof experiences normal storms, you should still check up on its condition periodically. This is especially true after a particularly bad storm.

You want to ensure that the rain gutters of your roof are fully operational, the shingles are all intact, and there are no bald spots or loose tiles on the roofing system itself. Constant bad weather can lead to problems with an asphalt roof, but solid materials, functioning gutters, and proper maintenance can keep your system in good condition for a long time.

4. Defective Roof Installation

Another common reason that your asphalt roofing system loses granules is improper installation. The shingles may have been defective, or your roofers didn’t install them correctly.

You can spot a roof installation defect when there are premature bald patches on your roof. When this happens, the new asphalt shingle substrate gets exposed prematurely, leading to a significant reduction in your roof’s durability and lifespan.

When either of these happens, you should contact your roofing company immediately and get your roof shingles replaced.


Granule loss is common in asphalt roof shingles, and it’s nothing to worry about right away. It could be because of excess granules that were generated upon production. Shingles that lose granules can also be due to age, hail damage, or defective tiles.

To make sure that your asphalt roofs are in good condition, it’s crucial to have an expert inspect them regularly. These professionals will let you know when there are problems with your roof that need to be addressed. They can schedule a repair for your asphalt shingles or get a replacement — depending on the severity.

As a homeowner, it’s important to know why asphalt roof shingles lose granules to ensure that your home’s roof stays in good condition.

Installing a ridge vent may be a key step in making your home more comfortable. It’s a great way to remove all the humid air from your home, especially during warm and humid days. Choosing the right material also plays a significant role in the outcome. For example, shingle-over ridge vents are easier to maintain and offer more aesthetics compared to aluminum ridge vents.

We recommend having your ridge vent installed by a professional. However, installing it yourself is also possible. It’s fairly easy to do as long as the process is done carefully and accurately. If you’re planning to install a ridge vent in your home in the future, then feel free to use this step-by-step guide as a reference throughout the process.

What To Consider Before Beginning

Make sure that you’re taking the appropriate safety measures before attempting to install a ridge vent. Always ensure that you’re working in good weather conditions. Prepare fall-arresting equipment beforehand to protect yourself in case any accidents or unexpected dilemmas occur. Installing a ridge vent may be a lengthy process, so it’s best to spread out all the steps over time and work at a comfortable pace so that you don’t overexert your body.

Equipment and Materials Needed

You must prepare the following materials and tools before installing your ridge vent:


Follow the steps below to install a ridge vent. Proceed with caution and execute with care.

Step 1: Removing the Shingle Caps

  • You can start by removing the shingle caps. First, loosen the nails that are keeping the ridge cap shingles secure. Take note that there are two nails for each one, so there will most likely be one on both sides of the ridge.
  • From there, begin removing them. Start with the last cap shingle that is overlapping at the end.
  • You can loosen the nail by using the flat pry bar. Slide the flat pry bar underneath the shingle cap and raise both the shingle and the nail head. This will loosen the nail, which will allow you to remove it easily. After that, remove the shingle cap.
  • You can use the utility knife with a hook blade to cut the shingles. The amount you need to cut depends on what the manufacturer recommends, but 3 inches is a good estimated amount. Remove the felt paper from the ridge to reveal the wood decking.

Step 2: Make Room for the Ventilation Opening

  • In this step, you will be cutting the wood decking along the ridge. The standard size you need to cut should be a minimum of one inch on both sides of the ridge board. This provides an entryway for the air to flow into the opening and through the vent. The one-inch minimum also stands, even if you do not have a ridge board to work with. You can create at least an inch-sized opening, even on truss-framed roofs.
  • Use the chalk line to measure both sides of the ridge, creating cutting lines for reference later on. You can start removing all of the framing nails that are above or below the chalk lines. This can be performed using the pry bar (cat’s paw) and a hammer. From there, begin driving the 8d nails into the roof rafters into the sections below the chalk lines. Try to optimize the depth of the blade and avoid cutting through the rafters or trusses.

Step 3: Installing the Shingles

  • Begin installing the new shingles over the wood decking. In this step, you can also reattach the existing shingles with nails to secure them properly.

Step 4: Installing the Ridge Vent

Shingle-over Ridge Vent

  • Check the manufacturer’s recommended distance for the ridge line and mark it. You can create a reference line by snapping the chalk line through the marks. From there, place the shingle-over ridge vent over the line you just made and nail it down securely. Repeat the same steps for the other side.
  • Place the asphalt shingles over the vent. Check manufacturer’s recommendations for nails.

Aluminum Ridge Vent

  • Check the manufacturer’s recommended distance for the ridge line and mark it. You can create a reference line by snapping the chalk line through the marks. From there, place the polyurethane caulk on the underside of the flange for both sides of the ridge vent.
  • Secure the aluminum ridge vent over your reference line by fastening it to the roof decking and rafter. Fasten the nails down the flange for both sides. Check the manufacturer’s recommendation for nail spacing.
  • Place the connectors and end caps to seal.

Get Professional Assistance

Installing your ridge vent is easy and efficient as long as you follow the above steps. However, if you require professional assistance or have any questions about the process, then feel free to contact us today. We offer professional roofing services, ensuring that all renovations and structures are built safely and securely.