Structural Plan Review

The Wrap up

Lesson 9

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Height and Area

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Height and Area

Minimum area

Minimum width

Minimum height

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Skill Check

• What is the minimum ceiling area which

must be at least 84” high

• The room is 20’ long x 12’wide.

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Skill Check - answer

• What is the minimum

ceiling area which

must be at least 84”

high

• The room is 20’ long x

12’wide.

R305.1

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Sanitation - Bathrooms

R306

• Every dwelling:

+ or

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Sanitation - Kitchens

R306

• Kitchen areas

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Skill Check

True or False:

1. I am required to have a room called a “kitchen”

in my house.

2. I am required to have a bathroom in my house.

3. My kitchen sink can also be my bathroom

lavatory.

4. I am required to have a bathtub in my bathroom.

5. I can have a water closet in my kitchen.

6. I can have a refrigerator in my bathroom.

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Skill Check - answer

R306

True or False: 1. I am required to have a room called a “kitchen” FALSE “Kitchen area”

in my house.

2. I am required to have a bathroom in my house. FALSE “toilet facilities”

3. My kitchen sink can also be my bathroom lavatory. TRUE

4. I am required to have a bathtub in my bathroom. FALSE tub or shower

5. I can have a water closet in my kitchen. TRUE

6. I can have a refrigerator in my bathroom. TRUE

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Sanitation - Kitchens

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Safety Glazing in Hazardous Locations

R308

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Safety Glazing in Hazardous Locations

• Most common places for safety glazing:

• Adjacent to a

door

• Adjacent to a

walking surface

• Adjacent to a

tub or shower

• Adjacent to

bottom of stair

R308

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Safety Glazing Adjacent to Door

• Within 2’ of door

• Within 5’ of the floor

R308.4.2

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Safety Glazing Adjacent to Door

• Exceptions

R308.4.2

A

B

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Safety Glazing Adjacent to Walkway

• Must meet ALL 4 requirements

<18”

>36”

> 9 SQFT

R308.4.3

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Safety Glazing Adjacent to Wet Surfaces

• Within 5’ horizontally and 5’ vertically

60”

≤ 60”

R308.4.5

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Safety Glazing Adjacent to Wet Surfaces

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Safety Glazing Adjacent to Wet Surfaces

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Safety Glazing Adjacent to Wet Surfaces

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Safety Glazing Adjacent to Wet Surfaces

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Safety Glazing Adjacent to Stairways

• Within 3’ horizontally and 5’ above floor

R308.4.7

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Topic #6: Garages and Carports

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Garages and Carports • Which is not a carport?

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1 2

3

R309.2

4

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Topic #7: EERO Emergency Escape and Rescue Opening

R310

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EERO • Basements >200 sqft

• Bedrooms

• Habitable attics

R310.1

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EERO

R310.1

• Bedrooms in basements

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EERO

• Window or door

• Minimum area: 5.7 sqft

• Minimum height: 24”

• Minimum width: 20”

R310.1.1, .2, .3

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Egress

• Egress door

R311.2

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Interior Passage

• Kitchen + living area + egress door:

• 32” access to:

• Kitchen

• Living area

• (1) bedroom

• (1) bathroom

R311.2.1

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Interior Passage

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R311.2.1

36” wide hallway

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Skill Check

• Can the required

egress door

discharge into

the garage?

R3101.1

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Skill Check - answer

• Can the required egress

door discharge into the

garage?

R311.1

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Stairs

R311.7.6

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Landing at Stairs

• Interior stairs

• Bottom of stairs

• Exterior stairs

• Top of stairs

• Bottom of stairs

R311.7.6

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Landing at Stairs

• Exception

R311.7.6

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Skill Check

• Scenario:

Homeowner wants to convert his screen

porch to a sunroom. What might he have to

do with his stairs?

R311.7.6

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Skill Check - answer

• Scenario:

Homeowner wants

to convert his

screen porch to a

sunroom. What

might he have to

do with his stairs?

R311.7.5

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Stairways

• Riser

• Tread

• Head room

• Handrails

• Guards

R311.7.5

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Ramps

• Slope

• Handrails

• Guards

• Height

R311.8

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LANDINGS at STAIRWAYS

R311.7.5 Landings for stairways. There shall be a floor

or landing at the top and bottom of each stairway. A flight

of stairs shall not have a vertical rise larger than 12 feet

(3658 mm) between floor levels or landings. The width of

each landing shall not be less than the width of the stairway

served. Every landing shall have a minimum dimension of

36 inches (914 mm) measured in the direction of travel.

Exception: A floor or landing is not required at the top of

an interior flight of stairs, including stairs in an enclosed

garage, provided a door does not swing over the stairs.

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Handrail Requirements

R311.7.6 Stairway walking surface. The walking surface

of treads and landings of stairways shall be sloped no steeper

than one unit vertical in 48 inches horizontal (2-percent slope).

R311.7.7 Handrails. Handrails shall be provided on at

least one side of each continuous run of treads or flight with

four or more risers. The continuous handrail required for

winders shall be located on the side where the tread is

narrower.

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Handrail & Guard System

Wood handrail

and combined

guard system

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Handrail Height

R311.7.7.1 Height. Handrail height, measured vertically from

the sloped plane adjoining the tread nosing, or finish surface of

ramp slope, shall be not less than 30 inches (762 mm) and not

more than 38 inches (965 mm).

Exceptions:

1. The use of a volute, turnout or starting easing shall be

allowed over the lowest tread.

2. When handrail fittings or bendings are used to provide

continuous transition between flights, the transition from

handrail to guardrail, or used at the start of a flight, the

handrail height at the fittings or bendings shall be permitted to

exceed the maximum height.

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Handrail Exceptions

EXCEPTION 2 EXCEPTION 1

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Handrail Continuity

R311.7.7.2 Continuity. Handrails for stairways shall be

continuous for the full length of the flight, from a point directly

above the top riser of the flight to a point directly above the

lowest riser of the flight. Handrail ends shall be returned or

shall terminate in newel posts or safety terminals. Handrails

adjacent to a wall shall have a space of not less than 1 1/2 inch

(38 mm) between the wall and the handrails.

Exceptions:

1. Handrails shall be permitted to be interrupted by a newel post

at the turn.

2. The use of a volute, turnout, starting easing or starting

newel shall be allowed over the lowest tread.

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Continuous Handrail

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Handrail Discontinuity

DISCONTINUOUS

@ NEWEL POST

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Graspability

R311.7.7.3 Grip-size. All required handrails shall be of

one of the following types or provide equivalent

graspability.

1. Type I. Handrails with a circular cross section shall have an

outside diameter of at least 1 1/4 inches (32 mm) and not

greater than 2 inches (51 mm). If the handrail is not circular, it

shall have a perimeter dimension of at least 4 inches (102 mm)

and not greater than 6 1/4 inches (160 mm) with a maximum

cross section of dimension of 2 1/4 inches (57 mm). Edges

shall have a minimum radius of 0.01 inch (0.25 mm).

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Type 1 Handrail

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Graspability Cont.

2. Type II. Handrails with a perimeter greater than 6 1/4 inches

(160 mm) shall have a graspable finger recess area on both

sides of the profile. The finger recess shall begin within a

distance of 3/4 inch (19 mm) measured vertically from the

tallest portion of the profile and achieve a depth of at least

5/16 inch (8 mm) within 7/8 inch (22 mm) below the widest

portion of the profile. This required depth shall continue for at

least 3/8 inch (10 mm) to a level that is not less than 13/4

inches (45 mm) below the tallest portion of the profile. The

minimum width of the handrail above the recess shall be 11/4

inches (32 mm) to a maximum of 23/4 inches (70 mm).

Edges shall have a minimum radius of 0.01 inch (0.25 mm).

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Type II Handrail

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Illumination Requirements

R311.7.8 Illumination. All stairs shall be provided with

illumination in accordance with Section R303.6.

R303.6 Stairway illumination. All interior and exterior stairways

shall be provided with a means to illuminate the stairs, including

the landings and treads. Interior stairways shall be provided with

an artificial light source located in the immediate vicinity of each

landing of the stairway. For interior stairs the artificial light

sources shall be capable of illuminating treads and landings to

levels not less than 1 foot-candle (11 lux) measured at the center

of treads and landings. Exterior stairways shall be provided with

an artificial light source located in the immediate vicinity of the

top landing of the stairway.

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Stairway Illumination

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Illumination Requirements Exterior stairways providing access to a basement from the

outside grade level shall be provided with an artificial light

source located in the immediate vicinity of the bottom landing of

the stairway.

Exception: An artificial light source is not required at the

top and bottom landing, provided an artificial light source is

located directly over each stairway section.

R303.6.1 Light activation. Where lighting outlets are

installed in interior stairways, there shall be a wall switch at

each floor level to control the lighting outlet where the stairway

has six or more risers. The illumination of exterior stairways shall

be controlled from inside the dwelling unit.

Exception: Lights that are continuously illuminated or

automatically controlled.

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Topic #10: Energy

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Additional Measure Tables

N1101.1 General.

All conditioned spaces within residential buildings shall

comply with Table N1101.1(1) and two additional measures

from Table N1101.1(2).

• One measure from Envelope Measures section

• Items 1 thru 6

• One measure from Conservation Measures section

• Items A thru G

Verify on plans which measures were used on the

residence

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Energy

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Additional Measure Tables

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Additional Measure Tables

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N1104.2.1 Attic insulation

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N1104.4.4 Batt insulation

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N1101.1(1) Window U-values

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N1101.1(2) Space conditioning

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N1105.3.4 Controls

N1104.2.6 Recessed

Lighting Fixtures

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N1107.2 High-efficacy lamps

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N1107.2 High-efficacy lamps

Compact fluorescent

LED Lamps

Fluorescent Tubes

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N1101.1(2) Blower Door Test

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N1101.1(2) Duct Sealing Test

• Tested duct system: PTCS technician on

PTCS form. 6% leakage or less

• Measure 3, 5, or E

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Smoke Detection Systems

R314.3

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CO Alarms

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Smoke Detection Requirements

R314.1 Smoke detection and notification. All smoke alarms

shall be listed in accordance with UL 217 and installed in

accordance with the provisions of this code or the household

fire warning equipment provisions of NFPA 72.

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Household Fire Alarm Systems R314.2 Smoke detection systems. Household fire alarm systems

installed in accordance with NFPA 72 that include smoke alarms,

or a combination of smoke detector and audible notification

device installed as required by this section for smoke alarms,

shall be permitted. The household fire alarm system shall provide

the same level of smoke detection and alarm as required by this

section for smoke alarms. Where a household fire warning

system is installed using a combination of smoke detector and

audible notification device(s), it shall become a permanent fixture

of the occupancy and owned by the homeowner. The system shall

be monitored by an approved supervising station and be

maintained in accordance with NFPA 72.

Exception: Where smoke alarms are provided meeting the

requirements of Section R314.4.

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Smoke Detector Locations R314.3 Location. Smoke alarms shall be installed in the following

locations:

1. In each sleeping room.

2. Outside each separate sleeping area in the immediate

vicinity of the bedrooms.

3. On each additional story of the dwelling, including basements but

not including crawl spaces and uninhabitable attics. In dwellings or

dwelling units with split levels and without an intervening door

between the adjacent levels, a smoke alarm installed on the upper

level shall suffice for the adjacent lower level provided that the lower

level is less than one full story below the upper level.

When more than one smoke alarm is required to be installed

within an individual dwelling unit the alarm devices shall be

interconnected in such a manner that the actuation of one alarm

will activate all of the alarms in the individual unit.

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Smoke Detector Locations

Required smoke alarms shall not be located within kitchens

or garages, or in other spaces where temperatures can fall

below40°F (5°C). Ionization smoke alarms shall not be located

closer than 3 feet (914 mm) horizontally from the following:

1. The door to a kitchen;

2. The door to a bathroom containing a tub or shower;

3. The supply registers of a forced air heating or cooling

system, outside the airflow from those registers.

A smoke alarm installed within 20 feet (6096 mm) (direct

linear path) of a cooking appliance shall be a photoelectric-

type smoke alarm or the alarm shall have an approved

alarm silencing means.

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Smoke Alarm Locations

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Smoke Alarms at Split Levels

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Alterations, Repairs & Additions

R314.3.1 Alterations, repairs and additions. When

alterations, repairs or additions requiring a structural permit

occur, or when one or more sleeping rooms are added or

created in existing dwellings, the individual dwelling unit shall

be equipped with smoke alarms located as required for new

dwellings.

Exception: Work involving the exterior surfaces of dwellings,

such as the replacement of roofing or siding, or the addition or

replacement of windows or doors, or the addition of a porch or

deck, are exempt from the requirements of this section.

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Alarm Power Source

R314.4 Power source. Smoke alarms shall receive their primary

power from the building wiring when such wiring is served from

a commercial source, and when primary power is interrupted,

shall receive power from a battery. Wiring shall be permanent

and without a disconnecting switch other than those required for

overcurrent protection. Smoke alarms shall be interconnected.

Exceptions:

1. Smoke alarms shall be permitted to be battery operated when

installed in buildings without commercial power.

2. Interconnection and hard-wiring of smoke alarms in existing

areas shall not be required where the alterations or repairs do not

result in the removal of interior wall or ceiling finishes exposing

the structure.

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Carbon Monoxide Alarms

CARBON MONOXIDE ALARMS

R315.1 Carbon monoxide alarms. For new construction,

approved single station carbon monoxide alarms or a

household carbon monoxide detection system shall be

installed.

R315.2 Installation location. Carbon monoxide alarms

shall be located in each bedroom or within 15 feet (4572

mm) outside of each bedroom door. Bedrooms on

separate floor levels in a structure consisting of two or

more stories shall have separate carbon monoxide alarms

serving each story.

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CO Detector Locations

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CO Alarm Requirements

R315.3 Alarm requirements.

R315.3.1 Single station alarm requirements. Single station

carbon monoxide alarms shall be listed as complying with UL

2034 and shall be installed in accordance with this code and the

manufacturer’s installation instructions.

R315.3.2 Household carbon monoxide detection systems.

Household carbon monoxide detection systems that include

carbon monoxide detectors and audible notification appliances,

installed in accordance with this section for carbon monoxide

alarms and NFPA 72 shall be permitted. The carbon monoxide

detectors shall be listed as complying with UL 2075.

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Combination Detectors

R315.3.3 Combination smoke/carbon monoxide alarm

requirements. Combination smoke/carbon monoxide

alarms shall be listed as complying with UL 2034 and UL

217. Combination smoke/carbon monoxide detectors shall

be listed as complying with ANSI/UL 2075 and ANSI/UL

268. See Section R314 for additional requirements specific

to the installation of smoke alarms.

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CO Power Sources R315.4 Power source.

R315.4.1 Carbon monoxide alarms. Single station carbon

monoxide alarms shall be battery operated, or may receive

their primary power from the building wiring system. Plug

in devices securely fastened to the structure and installed in

accordance with the manufacturer’s installation instructions

are deemed to satisfy this requirement. Hard wired and

plug-in carbon monoxide alarms shall be equipped with

battery back up.

R315.4.2 Household carbon monoxide detection systems.

Required power supply sources for household carbon

monoxide detection systems shall be in accordance with

NFPA 720.

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Combination Smoke & CO Detectors

R315.4.3 Combination smoke/carbon monoxide alarms.

Combination smoke/carbon monoxide alarms/detectors shall

receive their primary power from the building wiring when such

wiring is served from a commercial source, and when primary

power is interrupted, shall receive power from a battery. Wiring

shall be permanent and without a disconnecting switch other

than those required for overcurrent protection. Smoke alarm

features of combination smoke/carbon monoxide

alarms/detectors shall be interconnected.

Exceptions: Interconnection and hard-wiring of combination

smoke/carbon monoxide alarms/detectors in existing areas shall

not be required where the alterations or repairs do not result in

the removal of interior wall or ceiling finishes exposing the

structure.

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CO Detectors in Exist. Buildings

R315.5 Where required in existing dwellings. Where a new

carbon monoxide source is introduced or work requiring a

structural permit occurs in existing dwellings carbon

monoxide alarms shall be provided in accordance with

Section R315.1.

Exception: Work involving the exterior surfaces of dwellings,

such as the replacement of roofing or siding, or the addition or

replacement of windows or doors, or the addition of a porch or

deck, are exempt from the requirements of this section.

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PLANS CHECK

That’s a Wrap

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