All About Roofers Journal News

How many times can you reroof a house?

Oct 6

You might wonder if you are doing it too often when considering roofing your home. Your roof may be in good condition, but it might be time to retouch.

Re-roofing is adding another layer to an existing roof. Some codes only allow for two roofing layers, while others allow for three. You will need to replace your entire roof if the re-roof roof begins to fall off.

The type of roof and how often you maintain it will determine how often your house needs to be re-roofed. While most homeowners prefer to re-roof their homes to save money and time, some roof damage may require a complete replacement.

When to Re-Roof

Roofs are often the least cared for and most neglected parts of a house. No matter how old your roof is, you'll still notice signs that it needs to be replaced. These are signs you need to re-roof.

Missing Granules

If you see a dark spot on your roof, one, two or more granules have likely been missing. Your house will not leak because granules won't affect the waterproofing.

Granules are essential, even though they may not seem necessary. They protect the shingles against direct UV rays. Your shingles will quickly wear if you don't inspect your roof often enough to find any missing granules.

There are minor leaks.

Water can get through even the most minor cracks in your roof and reach your ceiling. Leakages can also occur if there are missing or loose shingles. Water dripping from the roof's top during rain is a good indicator of a leaky roof. You can also look for yellow or brown spots on the ceiling to indicate leaks. You can replace missing shingles by replacing two to three of them.

Lots of Moss

It is not a sign that your shingles are worn out. You can replace the shingles if the moss grows only in one place. Before replacing the shingles, check for water damage, such as worn-out waterproofing. The moss will spread to other areas if it is not replaced. The moss can cause other shingles to loosen, leading to more moisture damage.

Shingles Taking Off The Roof

The roof will blow off shingles that have dried, curled, or cracked. Loss of shingles can cause damage to the waterproofing underneath the roof and lead to leaks. You can save a whole roof by replacing the damaged shingles.

Aged Roof

What is the age of your roof? Asphalts older than 15 years begin to wear out and fall. If a homeowner cannot afford to replace their entire roof, they will opt for replacing the missing shingles.

If the second layer begins to wear, you will need to replace your entire roof. You will need to tear off the entire roof and replace it with a new one.

While most homeowners are comfortable doing their home projects, hiring a professional roofer is a good idea. If your roof is in good condition, new or nearing the end, re-roofing may be an option.

Negative Effects of Re-Roofing

Although re-roofing can be quick, easy, and inexpensive, it does have its drawbacks. In some cases, the pros may outweigh any cons. These factors should not be considered before you decide to re-roof.

Roof sheathing

The roofer will inspect your roof and begin to tear off any leaks. The roof can be damaged if the tear-offs are not done correctly. You might also have to replace your entire roof if the roofer fails to spot the problem.

Difficulties in Replacing the Underlayment

For waterproofing, the tar paper is between the roof sheathing (shingles) and the roof sheathing. The underlayment, if worn or old, will not protect your roof against water and cause shingles to fall off.

You will need to replace the shingles if you live in an area with snow and cold temperatures. This membrane must be replaced to fix the problem completely when re-roofing.

The New Shingle's Warranty Is Affected by Re-Roofing

Before installing shingles, it is essential to read the instructions carefully. Manufacturers may advise against using their shingles to re-roof. You are automatically exempt from the warranty's benefits if you violate them.

Re-Roofing may be against local codes.

Consider the local codes before you re-roof. Some building codes only allow one layer of roofing shingles, while others allow two layers. Towns affected by hailstorms are an example of a location that allows only one layer of shingles.


You can keep an eye on your roof to determine when it is time to re-roof. Re-roofing is usually the first choice for homeowners. However, you may want to consider replacing your entire roof if there is significant damage or if there are two layers. This will save you money. For this, you can contact the Woodbridge roofing company.