-
Gutter or perimeter overflow systems shall have a minimum finish height of two inches (51 mm) that meets the requirements of MAHC Section 4.2.1.8 and 4.2.1.8.1.
-
4.2.1.8.4 Dark Colors
If dark colors in excess of what is required in this code are used for the POOL finish, these colors shall not extend more than 12 inches (305 mm) below the waterline. -
4.2.1.9 Slip Resistant
POOL floors in areas less than three feet (0.9 m) deep shall have a slip resistant finish with an acceptable coefficient of friction. -
4.2.1.10 Stainless Steel, Vinyl, PVC-P or PVC Pools
Stainless steel, vinyl, PVC-P, or PVC panel and liner POOL finish systems shall be acceptable provided that the system is installed on top of approved materials and design requirements as listed within this section or approved by the AHJ. -
4.2.1.10.1 Damaged
If at any time the liner system is damaged or cut in such a way that its integrity is compromised, the POOL shall be shut down until the system is fully repaired. -
4.2.1.11 Not Permitted
Wood, sand, or earth shall not be permitted as an interior finish. -
4.2.2 Indoor Aquatic Facility
-
4.2.2.1 Interior Finish
-
4.2.2.1.1 Relative Humidity
The interior finish of an INDOOR AQUATIC FACILITY shall be designed for an indoor relative humidity as not less than 80%. -
4.2.2.2 Condensation Prevention
-
4.2.2.2.1 Cold Weather
INDOOR AQUATIC FACILITY building envelope construction shall include a vapor-retarder/insulation arrangement to assist in preventing the condensation of water on inside building surfaces under the coldest outdoor conditions based on the ASHRAE climate data for the project locale or nearest reporting city and the highest design indoor relative humidity. -
4.2.2.2.2 Paint or Coating
Where a paint or coating serves as the vapor retarder of an INDOOR AQUATIC FACILITY, the paint or coating shall be applied so as to produce a permeability rating of 0.2 U.S. perm (11.4 ng·s-1·m-2·Pa-1) or less. -
4.2.2.2.2.1 Application
The paint or coating shall be applied according to the manufacturer’s recommendations for use as a vapor retarder. -
4.2.2.2.3 Perforated Interior-Finish Material
Where a perforated interior-finish material is used in an INDOOR AQUATIC FACILITY, as for acoustic effects, the perforated material shall not be considered to be a vapor retarder unless it has a listed permeability rating less than 0.2 U.S. perm (11.4 ng·s-1·m-2·Pa-1). -
4.2.2.3 Mechanical Systems
-
4.2.2.3.1 Equipment Rooms
For EQUIPMENT ROOMS, see MAHC Section 4.9.1. -
4.2.2.3.2 Chemical Storage Spaces
For CHEMICAL STORAGE SPACES, see MAHC Section 4.9.2. -
4.2.2.3.3 Indoor Aquatic Facility Air Pressure
AQUATIC FACILITY AIR HANDLING SYSTEM design, construction, and installation shall comply with the 2011 ASHRAE Applications Handbook on Natatorium Design ASHRAE Standard 62.1, Ventilation for Acceptable Indoor Air Quality, and/or applicable local CODES with additional requirements as stated in section MAHC 4.6.2. -
4.2.2.3.3.1 Chemical Storage Space Air Pressure
AIR HANDLING SYSTEM design for CHEMICAL STORAGE SPACES shall conform to the International Mechanical Code or Uniform Mechanical Code, and either the International Fire Code or the Uniform NFPA 1 Fire Code, and any applicable local CODES. -
4.2.2.3.4 Air Ducts
Where air ducts are required, they shall be resistant to corrosion from the airborne chemicals.