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Boat Insulation Calculator

Estimate R-value, thickness, and cost for your marine insulation project.

Quick Samples
Try these common configurations to get started

30ft Cruiser (Temperate)

40ft Powerboat (Cold)

50ft Yacht (Tropical)

Hull Dimensions
Enter your boat's principal dimensions
Insulated Areas (sq ft)
About This Tool
The Boat Insulation Calculator helps you determine the appropriate amount and type of insulation for your vessel based on its size and the climates you'll be navigating. It provides estimates for total cost, material volume, and the average R-value you can expect to achieve.

Key Concepts:

R-Value: A measure of thermal resistance; higher is better.
Vapor Barrier: A material that prevents moisture from passing into the insulation.
Thermal Bridge: An area (like a metal frame) that conducts heat, bypassing insulation.
Closed-Cell vs Open-Cell: Closed-cell foams are waterproof, while open-cell can absorb moisture.
Frequently Asked Questions

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