Should You Layer Roofing Shingles in Florida?
- JoeTriangleRoofing
- Jun 11
- 3 min read
Updated: Jun 19
Two Layers of Shingles
Layers of asphalt shingles on your roof may seem like it might offer more protection, the reality is quite different. Choosing to layer shingles can cause issues, causing more problems than it solves. Leaving the existing layer of shingles in place may offer short-term conveniences and save some money in the short-term, but it often causes long-term headaches and expenses for the homeowner.
Florida has Roofing Regulations:
Florida allows only one additional layer of shingles over an existing layer. If your roof already has two layers of shingles, a complete tear-off is required before any new shingles can be installed.
Before adding the new layer of shingles, inspecting the roof must be done to ensure it can support additional weight without compromising the roof decking.
If the roofing material has blisters or is water soaked, it must be removed.
The new layer of shingles must be compatible with the existing shingle layer.
Weight Concerns With a Second Layer of Shingles
Your home's structural integrity is likely designed to support a single layer of roofing, especially in Florida. Whether you opt for 3-tab or laminate shingles, adding a second layer doubles the weight. This excess load can strain the decks supporting your roof, leading to premature wear and potential structural damage.
Selling Your Home?
When it comes time to sell your house, home inspectors scrutinize every detail, especially your roof. Having two layers of shingles can raise red flags, including the condition of your roof deck. Is the wood damaged underneath? It will be hard to tell with double layers of roofing materials. This will impact your home's inspection results and decrease its value. Many buyers are looking for a new roof, especially in Florida.
Warranty Issues
Installing a new roof offers the option to purchase extended warranty plans. However, having two layers of shingles can void these warranties due to the heightened risk of damage. The added heat retention from double layers can accelerate shingle deterioration, leaving you responsible for repair costs. And after a major storm? Your insurance company may also deny your claim.
Multiple Layers Are Less Visually Appealing
Your home's exterior appearance matters and the roof plays a significant role in curb appeal. While you might assume that two layers of shingles would look similar to one, the reality is quite different. Installing new shingles over damaged existing ones can result in an uneven base, leading to an unattractive roof. Your home could be hard to sell.
More Problems Down the Road
Going with two or more layers of shingles presents long-term challenges, including:
Complicated repairs: A double-layered roof complicates repairs, making even minor issues more challenging, costly, and time-consuming.
Decreased lifespan: Double-layer roofs have a shorter lifespan due to increased weight, heat retention, and moisture buildup.
Higher removal costs: When it's time for a new roof, removing two layers requires more labor and time.
Make the Right Decision
While removing your roof may involve additional costs upfront, it is usually the best way to go. It will save you money in the long run. Maintaining two or more layers of shingles impacts your home's value and future expenses. An experienced roofer that you trust will give you the best advice.
Reach out to our team of licensed and insured contractors at Triangle Roofing, Inc. for expert guidance and a seamless roofing experience. Contact Joe at
(386) 673-6600
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