ICC
2021 International Residential Code
2021 International Residential Code
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2021 International Residential Code
This comprehensive code comprises all building, plumbing, mechanical, fuel gas and electrical requirements for one- and two-family dwellings and townhouses up to three stories. The 2021 IRC contains many important changes such as: Braced wall lines must be placed on a physical wall or placed between multiple walls. The rated separation for two-family dwellings is 1 hour whether or not a lot line exists between units. Emergency escape and rescue openings require a clear 36-inch-wide path to a public way. An engineered design is required for storm shelters. A habitable attic is limited to one-half the area of the story below and the dwelling requires sprinklers. Updated Wind Speed maps match IBC and ASCE 7 maps. Deck design now considers snow load, tributary area for footing and post height, and guard details. Specific requirements for deck guardrails were added. Component and cladding wind pressures in Table R301.2(2) are updated for new design wind speeds and hip or gable roof profiles. Minimum footing size tables are revised to more accurately reflect current practice. Cripple wall requirements apply only to exterior cripple walls. New appendices for cob construction and 3D printed construction are added. A 30 percent reduction of airflow is permitted for balanced ventilation systems. Commercial gas cooking appliances are prohibited. The head pressure for a water test of DWV systems increased to 10 feet. Air vacuum testing is now permitted for plastic piping DWV systems. Section P2904 for dwelling sprinklers is expanded to more closely align with NFPA 13D. An emergency service disconnect is required in a readily accessible outdoor location. A surge-protective device (SPD) is now required at the service panel. The number of receptacle outlets required for peninsular and island countertops in kitchens is determined by the area of the countertop surface.
This book is offered in a Loose Leaf OR Softbound format.
You can purchase it new or professionally Highlighted & Tabbed for your exam.
Why Most Highlighted & Tabbed Books Fall Short?
Many contractor exam prep schools sell highlighted and tabbed books. Only one created the system—and perfected it through real-world use. That system was created by Rob Estell, a licensed contractor, President, and Founder.
Open-book contractor exams don’t test how much you know. They test how quickly you can locate the correct answer inside dense reference manuals. Rob learned this firsthand by taking exams himself and later confirmed it through years of feedback from thousands of exam candidates.
While other schools offer highlighted and tabbed books, most:
- Use minimal or generic highlights
- Rely heavily on the existing Table of Contents and Index
- Miss exam-tested material that isn’t clearly referenced
- Provide tabs that point to broad sections, not precise answers
The result? Students still waste time searching.
Rob decided that “good enough” wasn’t good enough.
Why The Exam Pros ORIGINAL, detailed-driven highlighted and tabbed books? Thousands of contractors have passed their exams using Rob Estell’s highlighted and tabbed books because they solve the real problem:
- Knowing the answer
- But not being able to find it fast enough
Built from Contractor Experience & Student Feedback
Rob Estell’s system is built using:
- His own experience as a licensed contractor
- Personal exam feedback from real testing environments
- Thousands of data points from exam students nationwide
A Proven, Detail-Oriented Navigation System
Each book follows Rob’s proven 3-step method:
- Table of Contents – Identify the general section
- Precision Tabs – Jump directly to the exact topic
- Strategic, Detailed Highlights – Land on the answer instantly
Our highlights are thorough and detail-oriented, guiding your eye exactly where exam answers are located—not just coloring pages for appearance.
- Every highlight is intentional.
- Every tab exists because the book failed to guide the reader quickly enough.
- If a topic cannot be found efficiently through the Table of Contents or Index, it gets a custom tab and targeted highlight.
These books are designed to help you outperform the clock, not just prepare!
