Thermal Resistance Calculator

INSULATION v1.0

Total R = insulation R + other layer R + interior air film (ASHRAE typical R-0.68) + exterior air film (R-0.17). U-value = 1 / total R.

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Inputs

Results

Total Assembly R-Value
15.85 R
U-Value:0.063 Btu/hr·ft²·°F

Total R = insulation R + other layer R + interior air film (ASHRAE typical R-0.68) + exterior air film (R-0.17). U-value = 1 / total R.

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概要・使い方

Discover how Thermal Resistance Calculator executes your workflow locally in your browser with zero server uploads and total privacy.

Thermal Resistance Calculator on Neranjan Tools is an ultra-fast, client-side utility crafted to deliver professional-grade processing without the privacy risks or upload delays of traditional cloud services. Whether handling sensitive business contracts, personal photos, or code snippets, you can accomplish your task in seconds.

Unlike conventional web converters that upload your confidential files to remote third-party servers, this tool operates 100% inside your browser's local sandbox using HTML5 Canvas, WebAssembly, and modern JavaScript engines. Your files are loaded into your device's memory, processed instantly by your local CPU and GPU, and saved directly to your disk, ensuring zero data leaks, zero server logging, and immunity to malware execution.

使い方ガイド

1

Enter Layer R-Values

Input the insulation R-value and any additional sheathing/other layer R-values.

2

Include Air Films

Keep the ASHRAE-typical interior (R-0.68) and exterior (R-0.17) air film defaults, or adjust for your conditions.

3

Get U-Value

View total assembly R-value and its reciprocal U-value.

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よくある質問 (10)

このツールに関するよくある質問と回答です。

Still air layers on both interior and exterior surfaces provide measurable insulating resistance — ASHRAE typical values are R-0.68 (interior) and R-0.17 (exterior).
U-value is the reciprocal of total R-value (U = 1/R) and measures heat transfer rate — lower U-values indicate better insulated assemblies.
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更新履歴

現在のバージョン: v1.0
更新履歴はまだありません。