Page 47 - Green Builder November-December 2018 Issue
P. 47
Lofts shall be not less than feet (, mm) in any horizontal
dimension.
NEW CODE FOR SITE Portions of a loft with a sloped ceiling measuring less than feet
AQ104.1.3 Height effect on loft area.
( mm) from the nished oor to the nished ceiling shall not be
considered as contributing to the minimum required area for the loft.
BUILT TINY HOUSES Exception: Under gable roofs with a minimum slope of units vertical
in units horizontal ( percent slope), portions of a loft with a sloped
ceiling measuring less than inches ( mm) from the nished oor
to the nished ceiling shall not be considered as contributing to the
minimum required area for the loft.
AQ104.2 Loft access.
The access to and primary egress from lofts shall be of any type
described in Sections AQ.. through AQ...
AQ104.2.1 Stairways.
Stairways accessing lofts shall comply with this code or with Sections
AQ... through AQ.... SOURCE: INTERNATIONAL CODE COUNCIL®
AQ104.2.1.1 Width.
Stairways accessing a loft shall not be less than inches ( mm)
in clear width at or above the handrail. The width below the handrail
shall be not less than inches ( mm).
AQ104.2.1.2 Headroom.
The headroom in stairways accessing a loft shall be not less than
feet inches (, mm), as measured vertically, from a sloped New rules. A tiny house floorplan compliant with IRC 2018 space restrictions.
line connecting the tread or landing platform nosings in the middle
of their width. rungs. Ladders shall be capable of supporting a -pound ( kg) load
AQ104.2.1.3 Treads and risers. on any rung. Rung spacing shall be . uniform within /inch (. mm).
Risers for stairs accessing a loft shall be not less than inches AQ104.2.2.2 Incline.
( mm) and not more than inches ( mm) in height. Tread Ladders shall be installed at to degrees from horizontal.
depth and riser height shall be calculated in accordance with one of
the following formulas: AQ104.2.3 Alternating tread devices.
. The tread depth shall be inches ( mm) minus four-thirds Alternating tread devices accessing lofts shall comply with Sections
of the riser height. R... and R.... The clear width at and below the handrails
. The riser height shall be inches ( mm) minus three-fourths shall be not less than inches ( mm).
of the tread depth. AQ104.2.4 Ships ladders.
AQ104.2.1.4 Landing platforms. Ships ladders accessing lofts shall comply with Sections R... and
The top tread and riser of stairways accessing lofts shall be R.... The clear width at and below handrails shall be not less than
constructed as a landing platform where the loft ceiling height is inches ( mm).
less than feet inches (, mm) where the stairway meets the AQ104.2.5 Loft guards.
loft. The landing platform shall be inches to inches ( to Loft guards shall be located along the open side of lofts. Loft guards
mm) in depth measured from the nosing of the landing platform shall be not less than inches ( mm) in height or one-half of
to the edge of the loft, and to inches ( to mm) in height the clear height to the ceiling, whichever is less.
measured from the landing platform to the loft oor. SECTION AQ105
AQ104.2.1.5 Handrails.
Handrails shall comply with Section R... EMERGENCY ESCAPE AND RESCUE OPENINGS
AQ104.2.1.6 Stairway guards. AQ105.1 General.
Guards at open sides of stairways shall comply with Section R.. Tiny houses shall meet the requirements of Section R for
emergency escape and rescue openings.
AQ104.2.2 Ladders. Exception: Egress roof access windows in lofts used as sleeping
Ladders accessing lofts shall comply with Sections AQ.. and rooms shall be deemed to meet the requirements of Section R
AQ... where installed such that the bottom of the opening is not more than
AQ104.2.2.1 Size and capacity. inches (, mm) above the loft oor, provided the egress roof
Ladders accessing lofts shall have a rung width of not less than inches access window complies with the minimum opening area requirements
( mm), and -inch ( mm) to -inch ( mm) spacing between of Section R...
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