Terms & Conditions
Last updated: October 2026
1. Acceptance of Terms
By accessing or using restorationcertlab.com ("the Service"), you agree to be bound by these Terms and Conditions. If you do not agree, please do not use the Service.
2. Description of Service
Restoration Cert Lab provides online exam-preparation materials including practice questions, flashcards, mind maps, study guides, and review tools for the certification tracks listed on the site. Access to premium content requires a paid access plan.
Our interactive mind maps use React Flow (@xyflow/react), open-source diagramming technology provided under the MIT License. React Flow provides the visualization technology only and does not create or endorse our study content.
3. User Accounts
You are responsible for maintaining the confidentiality of your account credentials. Each account is for individual use only and may not be shared. We reserve the right to suspend accounts that violate these terms.
4. Payments, Refunds, and Success Guarantee
All payments are processed securely via Stripe and charged in U.S. dollars unless stated otherwise. Access plans are one-time payments with no recurring cost. Full premium content is available immediately after payment is confirmed. Because access is provisioned right away and digital materials can be consumed instantly, completed purchases are generally final and non-refundable except where required by applicable law.
Success Guarantee — if you don’t pass, we’ll grant one additional matching access period for the same exam free, no questions asked. To claim it, take the official exam for your purchased module within 365 days of purchase and email support from the address used at checkout. No official result, screenshot, explanation, or other proof is required. The guarantee provides one complimentary access period per purchase, matches the length of the original plan, applies to the same exam and account, is non-transferable, and has no cash alternative.
5. Intellectual Property
All content on this platform, including questions, explanations, study materials, layouts, graphics, and original copy, is protected by applicable intellectual-property laws. You may not reproduce, distribute, republish, scrape, resell, or share substantial portions of the platform without prior written permission.
6. Independence and Informational Use
Restoration Cert Lab is an independent educational platform. It is not an official site of, and is not endorsed by, any certification body, school, professional association, employer, or brand referenced on the site. Brand names, certification names, and related references are used solely for descriptive and nominative purposes so candidates can understand what the study materials relate to.
7. Original Content Statement
Our study content is independently created for educational preparation purposes. We do not intend to infringe third-party copyrights, trademarks, or proprietary exam materials. If you believe any material on the site raises a legitimate rights concern, contact us and we will review it promptly.
8. Disclaimer
Our practice materials are for educational preparation purposes only. We do not guarantee that using our platform will result in passing any certification exam. Pass rates depend on individual study habits and preparation.
9. Limitation of Liability
To the maximum extent permitted by law, Restoration Cert Lab shall not be liable for any indirect, incidental, or consequential damages arising from your use of the Service.
10. Changes to Terms
We reserve the right to modify these terms at any time. Continued use of the Service after changes constitutes acceptance of the new terms.
11. Contact
For questions about these terms, contact us at support@restorationcertlab.com.
Free tool references and method records
Published by Restoration Cert Lab. Method record: 2026-10-15. Version 1.0.0. Automated reference-case tests accompany the calculation engines; no external expert endorsement is claimed.
Drying condition comparison
- PsychroLib 2.5.0 ↗
ASHRAE 2017 psychrometric equations, MIT-licensed implementation. Vendored commit 3066345dc8cf91bf59134147cf917f982c1fce13; licence included. Tool range −50 to 80 °C; RH greater than zero; absolute pressure must exceed saturation vapour pressure.
Dehumidifier GPP comparison
- PsychroLib 2.5.0 ↗
ASHRAE 2017 psychrometric equations, MIT-licensed implementation. Vendored commit 3066345dc8cf91bf59134147cf917f982c1fce13; licence included. Tool range −50 to 80 °C; RH greater than zero; absolute pressure must exceed saturation vapour pressure.
Measured moisture removal calculator
- PsychroLib 2.5.0 ↗
ASHRAE 2017 psychrometric equations, MIT-licensed implementation. Vendored commit 3066345dc8cf91bf59134147cf917f982c1fce13; licence included. Tool range −50 to 80 °C; RH greater than zero; absolute pressure must exceed saturation vapour pressure.
Airflow and ACH calculator
- US DOE: Improving Fan System Performance ↗
Fan affinity relationships; ideal comparison assumes constant geometry, density and efficiency.
Drying log builder
- OpenStax University Physics ↗
SI mechanics, fluids, dimensional analysis and geometry. Standard gravity is 9.80665 m/s².
PsychroLib software licence (MIT)
The MIT License (MIT) Copyright (c) 2018-2020 The PsychroLib Contributors. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.