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2024 International Residential Code

Chapter 4Foundations

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Question 1 1.

Under what condition is the use of wood foundations in Seismic Design Category D0, D1, or D2 permitted according to Section R401.1?

Question 2 2.

What is the minimum grade fall required for surface drainage away from foundation walls within the first 10 feet?

Question 3 3.

For a building located in Seismic Design Category C, when soil testing is performed, what additional information must the geotechnical report include according to Section R401.4?

Question 4 4.

According to Table R401.4.1(1), what is the presumptive load-bearing value for Silty sand, sand-silt mixtures (SM) material?

Question 5 5.

Which of the following soil groups, classified according to the Unified Soil Classification System, is described as having 'Poor' drainage characteristics and 'High' frost heave potential?

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