A min of 3’ of vertical clearance from roof surface to bottom of supported equipment shall be provided.
Roof equipment clearance table.
Roof mounted mechanical units shall be mounted on curbs raised a minimum of 8 inches (203 mm) above the roof surface, or where roofing materials extend beneath the unit, on raised equipment supports providing a minimum clearance height in accordance with table 1510.10.
This workspace is mandatory and applies to service equipment, switchboards, panelboards, and motor control centers.
The overhead workspace protects employees from.
These distances indicate space that must be clear to the floor.
Section 1510 roof assemblies and rooftop structures, rooftop structures limitations and building height requirements of chapter 5.
Lines/equipment per rule 235c4 & 238e.
3 minimum to 4 maximum flage set in mastic over roofing.
[nfpa 54:22.214.171.124] 303.8.5 electrical power
110.26 (a) (3) (e) as a general rule, you must maintain a minimum headroom clearance of 6 ft from the floor or platform up to any overhead obstruction.
Sheet metal cover with receiver for.
These values are intended for nesc inspection.
Ladders without cages or in wells should have at least 15 inches clear in each direction from the center of the ladder.
A minimum clearance of 3 feet (914 mm) in all directions shall be provided from any fire escape or rooftop access ladder, as measured from each side of the ladder or landing.
Licensee's attachments on utility poles, including metal attachment clamps and bolts, metal cross arm supports.
Sheet metal roof jack minimum of 8 above roofing.
Under both conditions, the resulting.
Typical methods for flashing of unit supports are shown in figures 1 through 5.
3’6” vertical clearance to signs, chimneys and other structures (not readily accessible).