A new roof usually comes with two different warranties, and they cover very different things. Many homeowners only learn the difference when they need to make a claim. Here is what each warranty covers, what voids them, and what to ask before you sign.
Manufacturer Warranty: The Materials
The shingle manufacturer warrants its products against manufacturing defects. Key points:
- Length: often advertised as 25, 30, 50 years, or "lifetime." Read the details, since full coverage is often limited to an initial period, after which coverage is prorated.
- What it covers: defects in the materials themselves, such as shingles that fail prematurely due to a manufacturing problem.
- What it usually does not cover: installation mistakes, storm damage, or damage from poor ventilation.
- Upgraded warranties: many manufacturers offer enhanced warranties when the roof is installed by a certified contractor using a complete system of their products (underlayment, starter, ridge cap, and so on). These can include some workmanship coverage backed by the manufacturer.
Workmanship Warranty: The Installation
The roofing contractor warrants their own installation work. Most roof problems in the first several years come from installation, not defective shingles, so this warranty matters a lot.
- Length: varies widely by contractor, from one year to ten years or more.
- What it covers: leaks and failures caused by how the roof was installed, such as improper nailing or flashing.
- The catch: a workmanship warranty is only as good as the company behind it. If the contractor goes out of business or leaves town, the warranty goes with them. This is a big reason to choose an established local roofer. See local roofer vs storm chaser.
What Can Void a Roof Warranty
- Improper installation or mixing incompatible products
- Inadequate attic ventilation. See roof ventilation.
- Pressure washing the roof
- Unauthorized repairs or alterations, such as installing solar panels or satellite dishes without proper methods
- Not registering the warranty, when the manufacturer requires it
- Installing new shingles over an existing layer, for some warranties
Is the Warranty Transferable?
If you might sell your home, ask whether the warranties transfer to the next owner. Many manufacturer warranties allow one transfer, sometimes with reduced coverage or a fee. A transferable warranty can be a selling point.
Questions to Ask Your Roofer
- What is your workmanship warranty, and can I have it in writing?
- Which manufacturer warranty will this roof qualify for?
- Are you certified by the manufacturer for any enhanced warranties?
- Who registers the warranty, you or me?
- What exactly is covered, and for how long at full coverage?
- Is it transferable if I sell?
Keep Your Paperwork
Store your contract, final invoice, warranty documents, and product details together. You will need them for a warranty claim, an insurance claim, or a home sale.
JD Roofing Solutions walks every customer through their warranty coverage before the job begins. Learn more about our roof replacement process or call 832-295-3277.
