• Codes
  • Features

    Features Overview

    Go to features
    Reference

    Reference.

    A reliable and up-to-date source of codes.
    Research

    Research.

    Rapidly and efficiently calculate project parameters.
    Collaboration

    Collaboration.

    Get everyone on the same page and streamline code research.
    Workflows
    Architects General Contractor Building Official & Plans Examiner Inspectors Owner Subcontractors Code Consultants
  • Pricing
  • Login
  • Sign Up
Sign Up
Login
  • Code Library
  • Features
  • Pricing
  • About
  • Careers
  • Help
  • Contact
  • Terms
  • Privacy
Sign Up
Upgrade to Premium
Code calculators: Code Calculators automatically generates a detailed list of requirements.
REFERENCE
Amendment Styling
Industry-leading search
Suggested code sections
Code diagrams
RESEARCH
Code calculators
Filter by topic
Code compare
Code sheet exports
COLLABORATION
Team projects
Bookmarks
Comments
START 2 WEEK FREE TRIAL
Have an account? Sign in
// CODE SNIPPET

AF103.3 Basements or Enclosed Crawl Spaces With Soil Floors

2015 Michigan Residential Code > F Passive Radon Gas Controls > AF103 Passive Radon-Resistant System Requirements > AF103.3 Basements or Enclosed Crawl Spaces With Soil Floors
JUMP TO FULL CODE CHAPTER
In dwellings with basements or enclosed crawl spaces with soil floors, the following components of a passive submembrane depressurization system shall be installed during construction.

Exception: Basements or enclosed crawl spaces that are provided with a continuously operated mechanical exhaust system in accordance with Section R408.3.

AF103.3.1 Soil-Gas-Retarder

The soil in basements and enclosed crawl spaces shall be covered with a soil-gasretarder. The soil-gas-retarder shall be lapped not less than 12 inches (305 mm) at joints and shall extend to foundation walls enclosing the basement or crawl space. The soilgas- retarder shall fit closely around any pipe, wire or other penetrations of the material. Punctures or tears in the material shall be sealed or covered with additional sheeting.

AF103.3.2 "T" Fitting and Vent Pipe

A 3- or 4-inch "T" fitting shall be inserted beneath the soil-gas-retarder and be connected to a vent pipe. The vent pipe shall extend through the conditioned space of the dwelling and terminate not less than 12 inches (305 mm) above the roof in a location not less than 10 feet (3048 mm) away from any window or other opening into the conditioned spaces of the building that is less than 2 feet (610 mm) below the exhaust point.

Related Code Sections


AF103.3 Passive Radon Gas Controls, Basements or Enclosed Crawl Spaces With Soil Floors
In dwellings with basements or enclosed crawl spaces with soil floors, the following components of a passive submembrane depressurization system ...
2015 Michigan Residential Code > F Passive Radon Gas Controls > AF103 Passive Radon-Resistant System Requirements > AF103.3 Basements or Enclosed Crawl Spaces With Soil Floors
1805.1 Soils and Foundations, General
Walls or portions thereof that retain earth and enclose interior spaces and floors below grade shall be waterproofed and dampproofed in accordance ...
2015 Michigan Building Code > 18 Soils and Foundations > 1805 Dampproofing and Waterproofing > 1805.1 General
Section AF102 Passive Radon Gas Controls, Definitions
or perforated pipe extending around all or part of the internal or external perimeter of a basement or crawl space footing. ENCLOSED CRAWL SPACE. A crawl ...
2015 Michigan Residential Code > F Passive Radon Gas Controls > AF102 Definitions
AF103.4 Passive Radon Gas Controls, Basements or Enclosed Crawl Spaces With Concrete Floors or Other Floor Systems and Slab-On-Grade Dwellings
or in dwellings with basements or crawl spaces with concrete or other floor systems ...
2015 Michigan Residential Code > F Passive Radon Gas Controls > AF103 Passive Radon-Resistant System Requirements > AF103.4 Basements or Enclosed Crawl Spaces With Concrete Floors or Other Floor Systems and Slab-On-Grade Dwellings
R403.4.2 Foundations, Concrete Footings
Concrete footings shall be installed in accordance with Section R403.1 and Figure R403.4(2). FIGURE R403.4(2) BASEMENT OR CRAWL SPACE ...
2015 Michigan Residential Code > 4 Foundations > R403 Footings > R403.4 Footings for Precast Concrete Foundations > R403.4.2 Concrete Footings
Help Contact Us Privacy Terms
Code sheet exports
Code sheet exports
Generate a code sheet that integrates with your drawing set.
Shared projects
Shared projects
Projects provide a dedicated space to collaborate on code research.
Code Compare
Code Compare
Highlight differences between any two building codes.
Code Calculators
Code Calculators
Code calculators automatically generate a detailed list of requirements.
Search
Search
Don't miss relevant code. Quickly locate sections across your jurisdiction.
Code diagrams
Code diagrams
Unpack the code through illustrations and descriptions.
UpCodes Premium
Leverage the most sophisticated code compliance platform.
TRY FREE FOR TWO WEEKS VISIT PRICING
UpCodes Premium
Leverage the full code compliance platform.
START 2 WEEK FREE TRIAL LEARN MORE