How chip seal goes down
On a graded, compacted base, we spray a hot asphalt binder and immediately spread crushed stone over it, then roll the stone into the binder. A second layer — a double chip seal — is the usual build when going from gravel or dirt.
Why it suits mountain properties
- Traction. The textured stone surface gives good grip on grades.
- Cost per foot. Well below hot-mix on long runs.
- Looks at home. The stone color blends with granite and forest settings.
- Sealed. No dust, no washboard, and water stays out of the base.
Things to know
- Some loose stone at first is normal; it's swept after curing.
- Avoid sharp, in-place turning while it's new.
- Snowplows should use a raised blade or a rubber or poly edge to avoid scraping stone loose.
- Plan a renewal coat every several years.
Very steep sections
On the steepest pitches and tight curves, we often recommend asphalt instead, with chip seal on the gentler runs.
Questions we get
How long does chip seal last up here?
A well-built double chip seal commonly lasts several years before a renewal coat.
Can I plow chip seal?
Yes, with the blade slightly raised or a rubber/poly cutting edge.
Can it be paved over later?
Yes — it makes a good base for asphalt.