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It depends on the surface. Asphalt and concrete both have a manufacturer-documented retrofit method; an existing paver driveway is a different case.
Each surface has its own documented approach, or lack of one.
Documented method
Grooves are cut into the finished asphalt, heating cable is laid in them, and the grooves are filled with sealer.
Two documented methods
Either a new layer of concrete is poured over cable laid on the existing slab, or cable is set into cut grooves in the finished concrete.
The heating elements sit in the base build-up beneath the pavers, not on top of an existing surface. The manufacturer’s installation manual does not describe a method for adding snow melting under an existing paver driveway the way it does for asphalt and concrete. Adding it generally means rebuilding that base, and whether that is practical for your project is something an assessment of your specific paving would confirm.
The same considerations that shape any snow-melting design, applied to an existing surface.
Cracking, settling or existing damage affects what a retrofit method can achieve.
How the existing surface was built affects which method applies.
Where power can reach the area, and what your panel can support.
Full coverage, tire tracks or targeted areas each have different implications for a retrofit.
Direct answers, surface by surface.
Often. The installation manual describes cutting grooves into the finished asphalt, laying heating cable in them, and filling the grooves with sealer. Whether that suits your driveway depends on its condition, so an assessment confirms the options.
Often, in one of two ways: a new layer of concrete poured over cable laid on the existing slab, or cable set into cut grooves in the finished concrete. An assessment of your slab confirms which applies.
The elements sit in the base beneath the pavers, so adding them generally means rebuilding that base. Whether that is practical for your project, and what it involves, is something an assessment of your paving would confirm.
A retrofit follows a different method than a new build, described in the manufacturer’s installation manual for asphalt and concrete. Your design and an assessment of the existing surface confirm what applies to your project.
Send a photo or two and we'll tell you what's possible.
