Even though it’ll save you money, and an extra layer might seem like a second layer of protection, this approach has a few drawbacks.
The next time you have roofing work at home, you might struggle to cover your expenses. You may have to avoid the expense or add another layer to the existing one.
So, before you make a final decision, consider your situation. Here’s how many layers you can put on a roof.
How Many Layers Can You Easily Put on a Roof?
The maximum amount of layers you can put effectively and safely on the roof is two. Primarily, if the layers are organic or fiberglass, it helps save the roof from being overweight.
Additional layers will only add pressure to the existing roof, threatening all. Most buildings are strictly against layering; thus, in such cases, there is no chance of layering on top of the existing roof.
However, you’ll still see roofs with three or four layers. People don’t want to make an effort or spend too much money.
Even in tight budgets, if the roof has one layer, it is sometimes possible to do a nail over if the roof allows you to. Some roofs are not ideal for a do-over, so you must decide wisely.
It is best to review any applicable codes before starting with your repair or renovation project. It will give you a better idea of what you need to do.
When is it Right to Consider an Overlay?
Undoubtedly, the roof is one of the crucial components of your home. It adds to the overall look and protects you and your loved ones from external elements.
Eventually, when it comes to roof repair, you will want to get done with the lengthy process as soon as possible.
If you do consider getting another layer of shingles for your roof, it is essential to consider that it is not the best option for all types of roofs.
Here’s how you can identify whether an overlay is a suitable option for you:
- Ensure the roof is not rotten or damaged
- If there is damage, it is to one side of the roof
- The roof should be in such a condition that it doesn’t require new shingles
- Keep in mind the roof should not have already existing shingle/ layer as that can add to the weight on the roof
Shingles are damaged for many reasons, including severe weather conditions such as high winds or damage from branches or trees falling.
If there are years of wear and tear and the shingles have withered, an overlay is probably not the best option for your roof.
The Advantage of an Extra Layer of Roof
The two significant benefits of an extra layer of shingles on your roof are excellent. It will reduce your cost and save time because all you have to do is put a fresh new layer over the old one and carry on with the day.
It doesn’t get too messy, and no extra cleaning is needed. It takes less work, so there are no high-end labor costs compared to what you have to pay when you’re getting into when you’re replacing your roof entirely.
What to Consider Before Adding a New Layer?
Before you consider adding another layer to your roof, you might want to ask yourself some questions.
What Does My Warranty Say?
Before making any final decisions, you must check whether you have a warranty for your roof.
If you wish to add an overlay incompatible with your warranty, there is a high chance you might need to choose between roof replacement and diminishing or canceling your warranty.
It is crucial to ensure that the repair you intend will not diminish or void the change.
Will the Extra Weight Damage My Roof Underneath?
Undoubtedly, the number of layers you keep adding will only add to the weight that the roof holds.
It could cause damage not only to the roof but to the entire structure. It can further lead to cracks in the foundation of the house, such as its walls.
While you are thinking about whether or not your roof can endure the added weight of a subsequent layer, you also need to think about the following:
- If you reside in a region where it snows heavily, the weight of the snow can be damaging to the overall structure
- Ensure that the roof underneath the shingles is in a good state
- If you’ve not had an expert roofer assess the weight or durability of your roof’s structure, it’s time you call in one
Will I Need to Replace My Roof Entirely in the Future?
The truth is all roofs need to be replaced at some point. Thus, if you know your roof needs to be exchanged in the next couple of years, it is best to substitute it now instead of an overlay.
It will only help you from paying double. Also, please consider that getting your roof replaced will take more money to get that double layer of shingles in the future.
How Much Will it Cost to Add One Extra Layer of Roof?
The cost of adding another layer of roof highly depends on the area you reside in and the roofing company you choose.
Your roofing contractor will speak to you about the pros and cons so that you go in with a well-made mind.
Can I DIY an Additional Layer of Roof?
While it can be quite tempting to save a considerable chunk of money and do a little DIY for your roof, know that if you’ve not done it before, you might end up making things worse.
It is not safe to carry on with the project, and the best way to deal with the situation is to get a professional to install, repair, clean and update you about your roofing.
Now that you know that homeowners in certain areas have no leverage to get an additional layer of roofing done, other areas are legally limited to two layers of roof shingles. It varies from one area to another and significantly on the condition of your existing roof.