CODES

Orange, Amber

DAMPPROOFING AND WATERPROOFING

SECTION 1803.6

REPORTING

Where geotechnical investigations are required, a written report of the investigations shall be submitted to the building official by the permit applicant at the time of permit application. This geotechnical report shall include, but need not be limited to, the following information:

  1. A plot showing the location of the soil investigations.
  2. A  complete record of the soil boring and penetration test logs and soil samples
  3. A record of the soil profile.
  4. Elevation of the water table, if encountered.
  5. Recommendations for foundation type and design criteria, including but not limited to: bearing capacity of natural or compacted soil; provisions to mitigate the effects of expansive sols; mitigation of the effects of liquefaction, differential settlement and varying soil strength; and the effects of adjacent loads.
  6. Expected total and differential settlement.
  7. Deep foundation information in accordance with Section 1803.5.5.
  8. Special design and construction provisions for foundations of structures founded on expansive soils, as necessary.
  9. Compacted fill material properties and testing in accordance with Section 1803.5.8.
  10. Controlled low-strength material properties and testing in accordance with Section 1803.5.9.


ROOFING

SECTION 1505.2

CLASS A ROOF ASSEMBLIES

Class A roof assemblies are those that are effective against severe fire test exposure. Class A roof assemblies and roof coverings shall be listed and identified as Class A by an approved testing agency. Class A roof assemblies shall be permitted for use in buildings or structures of all types of construction.


EXCEPTIONS

  1. Class A roof assemblies include those with coverings of brick, masonry or an exposed concrete roof deck.
  2. Class A roof assemblies also include ferrous or copper shingles or sheets, metal sheets and shingles, clay or concrete roof tile or slate installed on noncombustible decks or ferrous, copper or metal sheets installed without a roof deck on noncombustible framing.
  3. Class A roof assemblies include minimum 16 ounce per square-foot copper sheets installed over combustible decks.
  4. Class A roof assemblies include slate installed over ASTM D226, Type II underlayment over combustible decks.
Table, Furniture, Building, Wood, Rectangle, House, Chair

An example of achieving UL Class A with roofing products from Atlas Roofing. Photo courtesy of Atlas Roofing Corporation.







Building Enclosure  |  BuildingEnclosureOnline.com  |  Fall 2021

BACK TO CONTENTS