GUIDES

a.

Main Stairs. Width clear of handrail 2 feet-8 inches;
Headroom 6 feet-8 inches; Riser height

84 inches; Run9 inches plus nosing; Winders acceptable provided the run at a point 18 inches from converging end is not less than the run of the straight portion of the stair.

b. Service Stairs. Width clear of handrail
Headroom 6 feet-4 inches; Riser height

9 inches plus nosing for either open or closed; Winders
(same as for main stairs) Landing not less than 2 feet -
6 inches square.

Houses which have basements usually have more storage and general purpose space. There is usually space for children's play, minor carpentry, household repairs, and storage space for all types of articles having indoor and outdoor seasonal

uses.

Houses without basements should have what may be called a
"basement-equivalent" above grade. This space may be located
on the main floor or in an attic. It is not necessary for the
size of such a space to approach that of a basement. However,
this "basement equivalent" should be large enough to provide
for the family activities mentioned above. The location of
such a space adjacent to the kitchen provides the advantage of
being able to supervise children's play. The service entrance
to the house often is located here and provides a convenient
mud room in bad weather.

G573-2 Light and Ventilation

Where habitable rooms are located in a basement space, the light and ventilation requirements for habitable rooms should apply. Combustion air is necessary for heating equipment located in enclosed spaces.

574 BALCONIES AND PORCHES

GUIDES

G574

Private balconies or porches for living units in design, detail, and materials used shall be appropriate to the building for which they will be a part. They shall have direct connection to the living unit and shall be for the sole use of their occupants. Where balconies or porches join those of other apartments, an effective division shall be provided for security and privacy.

BALCONIES AND PORCHES

Open or enclosed balconies or porches attached to noncombustible construction should be constructed of noncombustible materials. Balconies or porches of combustible materials, either open or enclosed, may be used with exterior protected and wood frame construction but not higher than three stories above grade.

REFERENCES

1. Construction Lending Guide, United States Savings and Loan League, Chicago, Illinois, 1965-66.

2.

3.

Life Safety Code, National Fire Protection Association,
Boston, Massachusetts, 1967.

Circular Series, Small Homes Council, University of
Illinois, Urbana, Illinois.

4. Design Criteria for Space in Dwellings, Small Homes Council, University of Illinois, Urbana, Illinois, unpublished HHFA Project O-T-37, 1953

5.

The Performance Concept, National Bureau of Standards, USDC, Washington, D. C., unpublished Report No. 9831-Vol. 3, 1968.

6. Space Standards for Household Activities, University of Illinois Agricultural Experiment Station, Bulletin 686, 1962.

7. Space in the Home, Ministry of Housing and Local Government, London, England, 1963.

8.

9.

10.

11.

12.

House Planning, Design Bulletin 14, Ministry of Housing and
Local Government,
London, England, 1968.

Houses are for People, Cornell University Housing Research
Center, Ithaca, New York, 1955.

A Guide to Airborne, Impact and Structure Borne Noise - Control In Multifamily Dwellings, U. S. Department of Housing and Urban Development, Washington, D. C., 1968.

Household Storage Study, Federal Housing Administration
Washington, D. C., FHA No. 722, 1963.

Minimum Standards for Permanent Low-Cost Housing and the
Improvement of Existing Substandard Areas, Ideas and
Methods Exchange No. 64, U. S. Department of Housing
and Urban Development, Washington, D. C. 1966.

13. Time Saver Standards, 4th Edition, McGraw-Hill Book Company New York, New York, 1966.

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