Siding Warranties Compared: What CertainTeed, LP, and James Hardie Actually Cover

What does a siding warranty actually cover?

Every siding brand we install — CertainTeed, LP SmartSide, and James Hardie — backs its product with a written warranty, and every one covers the same basic thing: a defect in the material. A panel that cracks without being hit, a finish that peels off a properly installed and maintained board, a shake that warps on its own. That is what the document promises to fix.

What no product warranty covers is the list that ends most siding early: water through a bad flashing detail, panels nailed too tight, a wall that was never wrapped, hail or a ladder, and ordinary weathering. Those are installation and weather, not defects, and they belong to your contractor’s workmanship warranty and your insurance policy. For how the three materials themselves compare, start with our guide to vinyl, engineered wood, and fiber cement siding.

What does the CertainTeed siding warranty cover?

CertainTeed’s vinyl and polymer siding lines — Monogram, Board & Batten, CedarBoards, CERTAplank, Northwoods, and Cedar Impressions — carry a lifetime limited warranty. For the original single-family owner, a covered defect is handled at 100 percent with no proration for as long as you own the home, and the remedy includes the labor to remove and reinstall the siding, not just the material. That labor clause is unusual.

The terms worth knowing before you count on it:

• Transfer. When you sell, the coverage passes to the next owner as a prorated 50-year warranty.
• Fade. Covered past a measured threshold, but fade coverage does not transfer on any line, and on Northwoods and Cedar Impressions it’s capped at ten years. “Lifetime fade protection” is a marketing phrase, not warranty language.
• Hail. CertainTeed pays only the gap above what your homeowner’s insurance pays — never the deductible, never labor.
• What voids it. Painting over the factory finish voids the vinyl warranty. Power-washing voids Cedar Impressions; it’s hand-clean only. CedarBoards and CERTAplank add an eight-year warranty on the foam adhesive.

CertainTeed’s RISE composite board is a different document entirely: 30-year substrate, prorated after year 15, no fade coverage, hail excluded, and it must be painted or the warranty is void.

What does the LP SmartSide 5/50 warranty mean?

LP SmartSide engineered wood carries a 5/50 limited warranty, and the two numbers are two different promises. For the first five years, a covered defect is replaced at 100 percent, labor and material. From year six through year fifty, LP covers a portion of the material cost on a prorated schedule, and labor is no longer part of the remedy.

LP also warrants the siding against hail damage up to 1.75 inches when it was installed and maintained to spec. On a painted product that last clause matters: the coverage holds only if the paint is kept up and the cut edges stay sealed. Neglected paint isn’t a defect. We cover that upkeep in what siding costs to maintain over its life, and the brand-to-brand decision in LP SmartSide versus James Hardie.

What does the James Hardie warranty cover?

James Hardie fiber cement is covered by two separate documents. The 30-year substrate warranty covers the board itself: free from manufacturing defects and warranted to resist hail and termite damage. It is non-prorated, so a claim in year 29 is handled like one in year one, and it transfers to the first buyer of the home.

The expectation to set: the substrate warranty is a material remedy only. If a defective board has to come off and the wall re-sided, the labor is not covered. That is the clearest difference from the CertainTeed document.

The second document is the 15-year ColorPlus finish warranty, covering the factory color against peeling, cracking, and chipping. It is prorated, labor is covered in the first year only, and ordinary fade doesn’t qualify: only a measurable excess color change within the first three years counts. A field-painted Hardie home has no finish warranty from Hardie; the paint maker’s terms apply. How each material holds color is covered in does vinyl siding fade, and which siding holds its color best.

How do the three siding warranties compare?

A plain-language summary, not the documents themselves. Terms change; read the current warranty for the exact product line on your house before relying on any line of it.

Notice what none of the three cover: wind. A wind-speed figure on a spec sheet is a test rating, not a warranty term. And every brand’s coverage assumes an install to its written specification — which is where the rest of the story lives.

Why does the installer decide whether the warranty holds?

Every one of these documents carries the same condition: the siding must be installed to the manufacturer’s written instructions. Panels nailed too tight, missing house wrap, flashing lapped the wrong way, engineered wood touching the ground — each is an installation error, and each can void the product warranty on the wall it touches. The board maker didn’t cause it, so the board maker won’t pay for it.

That’s the job of the workmanship warranty — the contractor’s own written promise to fix installation problems for a stated number of years. It belongs in your contract beside the product warranties, and it’s only as good as the company behind it; our guide to reading a siding estimate and the piece on what a siding contract should include both cover how it should appear on paper.

Manufacturer credentials sit between the two. Global Roofing is a CertainTeed SidingMaster™ PRO contractor: we install to CertainTeed’s written specifications and can register the job with CertainTeed, keeping the full manufacturer coverage intact with our own workmanship backing on top. Certification doesn’t change the document’s terms; it’s the assurance the install won’t void them. Which is the honest reason installation decides longevity more than the material does — and why a warranty is a different thing from how long siding actually lasts here.

Frequently asked questions

Does a lifetime siding warranty cover labor?

It depends on the brand. CertainTeed’s vinyl and polymer warranties cover a defect at 100 percent for the original owner, including the labor to remove and reinstall the siding. James Hardie’s 30-year substrate warranty is material only. LP SmartSide covers labor and material in full for five years, then material on a prorated basis. Read the current document for the product on your house.

Does a siding warranty transfer when you sell the house?

Usually, but not in full. CertainTeed’s lifetime coverage becomes a prorated 50-year warranty for the next owner, and fade coverage doesn’t transfer. James Hardie’s substrate warranty transfers to the first buyer. The transferred coverage is always narrower, so a buyer should read the document rather than rely on the word “lifetime.”

What voids a siding warranty?

An install that doesn’t follow the manufacturer’s written specifications, painting over a factory vinyl finish, power-washing polymer shake such as Cedar Impressions, and leaving a paint-required product like RISE unpainted. Weather wear, impact, and water through a flashing gap aren’t defects and were never covered.

Is hail damage covered by a siding warranty?

Rarely as first-dollar coverage. CertainTeed pays only the gap above what your insurance pays, never the deductible or labor. LP SmartSide covers hail up to 1.75 inches when installed and maintained to spec. James Hardie warrants the board to resist hail, material only. For storm damage, your insurance policy matters more.