In reference to Writing Assignment #1, 2021 IRC Exam Study Course:
According to R105.1, A permit is required when any owner or owner’s authorized agent who inteds to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove convert or replace any electrical, gas, mechanical, or plumbing system, the installation of which is regulated by this code, or to cause any such work to be performed.
Clearance between combustible insulation and recessed luminaires is defined by R302.14 - Combustible insulation shall be separated not less than 3 inches from a recessed luminaire, fan motors and other heat-producing- devices. There is an exception where heat producing devices are listed for lesser clearances.
Solid fuel burning appliances shall be provided with combustion air in accordance with the appliance manufacturer’s installation instructions. Oil fired appliances shall be provided with combustion air in accordance with NFPA 31. The requirements for combustion and dilution air for gas fired appliances shall be in accordance with chapter 24.
Fuel fired appliances shall not be located in sleeping rooms, bathrooms, toilet rooms, storage closets or surgical rooms, or in a space that only opens into such rooms or space. Exceptions apply. per G2406.2.
Appliances installed in outdoor locations shall be either listed for outdoor installation or provided with protection from outdoor environmental factors.
The temperature limit for water supplied to a shower shall be limited to 120 degrees F. The temperature limit for water supplied to a bathtub or whirlpool bathtub is 120 degrees F. The temperature limit for water supplied to a bidet is 110 degrees F.
What are the illumination requirements for interior stairways?
Code Reference (IRC R303.7):
“Interior stairways shall be provided with an artificial light source to illuminate the landings and treads.”
Illumination Placement:**
The light source must be located in the immediate vicinity of each landing and stairway.
Controls (e.g., switches) must be provided at each floor level (top and bottom) for stairs with six or more risers.
Water heaters having an ignition source shall be elevated such that the source of ignition is not les than 18 inches above the garage floor. Elevation of the ignition source is not required for appliances that are listed as flammable vapor ignition-resistant.
Open vent pipes that extend through a roof, unless meeting criteria from P3103.1.2 or P3103.1.3, shall terminate not less than 6 inches above the roof, or 6 inches above the anticipated snow accumulation. Where a roof is used for recreational purposes open vent pipes shall terminate not less than 7 ft above the roof.
Discussion Question #10
Ignition source appliances need to be a minimum of 18 inches above a garage
floor. There are two reasons for this, gas vapor is mostly heavier than air and moves along the ground. the second being to protect it from damage (although truck bumpers are much higher than 18 inches in Texas. The exception is for units that are flammable vapor ignition resistant
P2801.7
An Accessible location is one that is capable of being reached (or removed or exposed without damage) for the operation, renewal, and inspection of equipment. A Readily Accessible location is one that is can be reached easily without the use of tools, the need to climb under or over, the need to use portable ladders, or remove obstacles.
A Damp location is protected from weather but not subject to saturation. A Dry location is not normally subjected to dampness or wetness. A Wet location refers to installations underground or in direct contact with earth, or subject to saturation.
Raintight means that beating rain will not result in the entrance of water. Rainproof means that rain is prevented from interfering with operation of apparatus.
How are electrical cables to be installed where they are run in attics across the top of structural members? Where they are run parallel to framing members? How must they be protected from physical damage?
Where run across the top of structural members the cable shall be protected by substantial guard strips at least as high as the cable.
Where run parallel with the structural members the wiring shall be not less than 1 1/4 inches from the edge of the member or shall be physically protected.
Writing Assignment 3. Illumination for interior stairways wall be provided with an artificial light illuminating the landings and treads. It shall be at least 1 foot candle and a switch shall be available at each floor with a stairway of at least 6 risers. An exterior stairway shall provide a light sources at the top landing. Exterior stairway to a basement shall provide a light at the bottom landing.
the course is very useful and full of information. Where have you been
Can guard post be notched? the answer is no. According to the 2021 IRC prohibits the notching
How is condensate from refrigeration cooling equipment to be addressed? Use a collection tank which will locate the condensation to the exterior of the home
IRC Course Study session 4
Specific Locations:
*Inside each sleeping room:
This ensures occupants are alerted to a fire within their immediate sleeping area.
*Outside each sleeping area:
This provides an early warning for occupants outside of their sleeping area.
*On every level of the home:
This includes basements and habitable attics, but not crawl spaces or uninhabitable attics.*Near bathrooms:
Smoke alarms should be installed at least 3 feet horizontally from the door or opening of a bathroom containing a bathtub or shower, unless this would prevent placement of a required alarm.
Interconnection and Power:
*Interconnection:
Smoke alarms must be interconnected, meaning that if one alarm is activated, all alarms throughout the home will sound.
*AC Power with Battery Backup:
Smoke alarms should be hardwired and powered by AC, with a battery backup to ensure they continue to function during power outages.
Alterations and Repairs:
*When alterations, repairs, or additions are made that require a permit, the requirements for smoke alarm installation are the same as for new construction.
This includes installing interconnected smoke alarms on every level, in each sleeping room, and outside each sleeping area, and ensuring they are powered by AC with a battery backup.
What is the definition of light-framed construction? Per IRC Section R201, light-frame construction is construction whose vertical and horizontal structural elements are primarily formed by a system of repetitive wood or cold-formed steel framing members.