Electrical wiring of low pitch roof. 27 must know tips for wiring switches and outlets yourself play it smart and stay safe when attempting diy electrical projects. If the service mast is used in a through the roof application 120208v or 120240v conductor clearances can be reduced to 18 inches over the overhang portion of the roof 23024a ex 3. Table of contents before you begin 3 1. If the slope of the roof exceeds 4 inches for every 12 inches 120208v or 120240v conductor clearances can be reduced to 3 feet over the roof 23024a ex 2.
To visualize this picture the roof pitch as a right triangle. Pitched roof design guide. Above decks and balconies including out 3 feet gh 10 feet. This roofing system is residential roofing system simply because it is usually adopted.
To the sides and below an openable window i 3 feet. Over a roof with 412 slope or more b 3 feet. Generally speaking roof assemblies are designed in two basic configurations. Design array layout 8 14 4.
Overhead service conductor clearance over private driveway b. There are two types of roofing systems low slope roofing systems and steep slope roofing systems. The roof pitch is written in a ratio of inches. Over a roof with 412 slope or more within 4 feet of roof edge at eaves c 18 inches.
The traditional metal roof types such as 5v crimp shown above and corrugated are rated by the manufacturers for use down to a 312 pitchthree inches of vertical rise for every foot of horizontal run because of the shallow height of the undulating ridges of the 5v and corrugated profiles and the use of exposed metal fasteners to screw the metal to the roof deck they are limited to a slope that will shed rain quickly. Install electrical wiring for all your home improvement projects. Over a roof low slope roof with less than 412 slope a 8 feet. Overhead service conductor clearance over alleys d.
If it needs to cross electrical wiring do so at a 90 degree angle. For example a roof with a 412 pitch rises 4 inches for every 12 inches of horizontal roof run. Overhead service conductor clearance over private sidewalks c. Low slope roofs are often referred to as flat roofs.
Do not cut wiring from the spool until you have the wire all the way to its destination. Before you begin 3 introduction this guide walks you through the process of completing a flush mount system design. Work early in the day to avoid overheating. What are the minimum distances or clearances for the following.
Roof assemblies with a pitch slope of less than 312 are considered low slope roofs. Compact warm roofs and ventilated cold roofs. Finalize project plan 16. The angled side is the roof the vertical leg is the rise.
It is the number of inches of rise for every 12 inches of horizontal distance. Define site conditions 4 5 2. In addition to this document ironridge provides a free online design. Ground the system 15 5.
Low pitch roof systems and steep slope roof systems.