For most homes around the Chicago area, yes. Synthetic slate gives you the slate look, and on the two points that decide the job here, weight and hail, it usually beats the stone.
Natural slate is quarried rock. Synthetic slate is an engineered composite shingle shaped and colored to look like it.
From the street, most people cannot tell them apart. On your roof framing, the two behave nothing alike.
What is synthetic slate made of?
Synthetic slate is a molded polymer shingle. The mold is taken from quarried slate, so the shingle comes out with the same thickness, the same shadow lines and the same uneven edges.
DaVinci produces a slate profile as well as a shake profile, so one material copies either look. The color goes all the way through the shingle instead of coating the surface.
Does synthetic slate look like slate?
Close enough that most people never ask. Thickness is what sells it.
Thin, flat imitation products read as fake from the curb. Quarried slate throws a shadow line at every course, and only a full thickness shingle throws the same line.
There is one plain difference. Composite shingles are made to controlled specs, so color and texture come out uniform across the whole roof. With quarried stone, the variation is part of what you pay for.
Some homeowners want that evenness. Some want the randomness. Look at both in person before you decide.
How much does the weight difference change things?
This is the point that decides the project for most people.
Slate is stone, and a slate roof weighs enough that many homes need the framing checked and sometimes reinforced before it goes on. That is a structural job with its own cost and its own schedule, and it happens before any roofing gets installed.
Synthetic slate weighs a small fraction of that and normally goes onto the structure you already have. If your house was not built for stone, synthetic slate is often the only route to the look.
Which one handles hail better?
Hail arrives here often enough that this is a fair question to lead with.
DaVinci composite shingles have a Class 4 impact rating under UL 2218 testing, the highest rating there is. Slate is hard, and hard is not the same as tough. Stone is brittle, and a big enough hailstone cracks it.
Cracked stone brings a second problem. You need a replacement piece that matches, and quarried slate varies by batch and by decade. A repair on a composite roof means ordering more of a manufactured product.
Which one lasts longer?
Slate is the longer lived material, and nobody selling composite should pretend otherwise. A slate roof installed properly and left alone can outlast the people who paid for it.
It only gets there if the framing takes that load for a century, the flashing never fails and nobody walks on it carelessly. Composite trades that ceiling for a lower one that is far easier to reach. DaVinci products come with manufacturer warranties on the material for a long period, including coverage against algae growth and color fade.
How do the two compare side by side?
| Natural slate | Synthetic slate | |
|---|---|---|
| What it is. | Quarried stone. | Molded polymer shingle. |
| Weight. | Heavy, framing often needs checking. | Light, usually fits the existing structure. |
| Hail. | Hard but brittle, can crack. | Class 4 under UL 2218. |
| Color. | Natural variation, batch to batch. | Even across the whole roof. |
| Repairs. | Matching old stone is the hard part. | Order more of the same product. |
| Lifespan. | Longer, if everything else survives. | Shorter, and much easier to reach. |
What does this come down to on a house around here?
Two things about this climate push people toward composite.
The first is hail. We get enough of it that an impact rating stops being a number on a spec sheet. It becomes the reason a roof does or does not need a claim.
The second is freeze and thaw. Our winters cross above and below freezing over and over. Water that works into a hairline crack in stone expands when it freezes, and polymer moves with temperature instead of splitting.
So which should you pick?
Slate is a beautiful roof and nothing substitutes for it. Choose it if you want quarried stone, you want the natural variation, and your framing can take the load.
For most homes around here the better trade is the slate look at a fraction of the weight. You get a Class 4 impact rating and a predictable repair. That is the roof we put on.
If that sounds like your house, DaVinci composite roofing is the product we install, and the slate profile is the one to look at. Get us out to see the roof. We will show you a sample on site, next to your siding and your trim, before you commit to anything.
