Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
---
title: Flagpoles
…140 unchanged lines
## The design wind speed and exposure category shall be stated on the Drawings and used as the basis for the pole and foundation design.
−## A pole height specified without a design wind speed and exposure category cannot be structurally certified by the manufacturer and generates an RFI on every project. Wind speed is the 3-second gust at 33 ft per the locally adopted ASCE 7 edition; typical US values range from roughly 85 mph to 150 mph depending on geography and exposure. {note}
−
```datasheet
label: Design wind speed (3-second gust at 33 ft)
…16 unchanged lines
```
+## A pole height specified without a design wind speed and exposure category cannot be structurally certified by the manufacturer and generates an RFI on every project. Wind speed is the 3-second gust at 33 ft per the locally adopted ASCE 7 edition; typical US values range from roughly 85 mph to 150 mph depending on geography and exposure. {note}
+
## Poles in coastal or chloride-rich environments shall be specified for that exposure.
…20 unchanged lines
## The pole material shall be selected for the height, wind exposure, and corrosion environment of the installation.
−## Aluminum is the most common material for commercial heights and offers the best strength-to-weight and finish options. Fiberglass suits coastal and corrosive environments where metal corrodes. Steel is reserved for very tall poles, generally 80 ft and above, where aluminum sections become impractical. {note}
−
```datasheet
label: Pole material
…6 unchanged lines
```
+## Aluminum is the most common material for commercial heights and offers the best strength-to-weight and finish options. Fiberglass suits coastal and corrosive environments where metal corrodes. Steel is reserved for very tall poles, generally 80 ft and above, where aluminum sections become impractical. {note}
+
## Aluminum shafts shall be extruded from alloy 6063-T6 conforming to ASTM B221, with minimum tensile strength of 30,000 psi and minimum yield strength of 25,000 psi.
…2 unchanged lines
## The shaft wall thickness shall be not less than 0.188 in (3/16 in) at the butt section for commercial and institutional poles.
+```datasheet
+label: Minimum butt-section wall thickness
+type: range
+unit: in
+min: 0.188
+max: 0.375
+step: 0.063
+default: 0.188
+```
+
## The 0.188 in minimum butt wall is the dividing line between commercial-grade and light-duty poles. The structural calculation may require a greater thickness for tall poles or high wind speeds; the value here is the floor, not the design value. {note}
+## The above-grade pole height shall be specified, and the shaft wall thickness shall be sized by structural calculation for that height and the site wind exposure.
+
```datasheet
label: Above-grade pole height
…6 unchanged lines
```
−```datasheet
−label: Minimum butt-section wall thickness
−type: range
−unit: in
−min: 0.188
−max: 0.375
−step: 0.063
−default: 0.188
−```
−
## The shaft form shall be selected for the specified height and shipping constraints.
−## A one-piece tapered shaft is preferred for clean appearance and is standard up to common commercial heights. Sectional (butt-and-splice) shafts are used for tall poles or where shipping length is limited. Telescoping shafts are used for the tallest poles. The form affects the appearance of the finished pole and any visible splice joints. {note}
−
```datasheet
label: Shaft form
…6 unchanged lines
```
+## A one-piece tapered shaft is preferred for clean appearance and is standard up to common commercial heights. Sectional (butt-and-splice) shafts are used for tall poles or where shipping length is limited. Telescoping shafts are used for the tallest poles. The form affects the appearance of the finished pole and any visible splice joints. {note}
+
## The butt diameter shall be sized per the manufacturer's published table for the specified height, wind speed, and flag size, and shall not be less than the values commonly tabulated for commercial poles.
−## NAAMM FP 1001 sizing is load-driven, not a fixed ratio. As a planning reference, commercial butt diameters run approximately 4 in at 20 ft, 5 to 6 in at 30 ft, 6 to 7 in at 40 ft, and 7 to 8 in at 50 ft. The certified calculation governs the final selection. {note}
−
```datasheet
label: Nominal butt diameter
…11 unchanged lines
```
+## NAAMM FP 1001 sizing is load-driven, not a fixed ratio. As a planning reference, commercial butt diameters run approximately 4 in at 20 ft, 5 to 6 in at 30 ft, 6 to 7 in at 40 ft, and 7 to 8 in at 50 ft. The certified calculation governs the final selection. {note}
+
# Flag Size and Loading {toc}
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## The number of flags to be flown simultaneously shall be specified, as it affects the halyard system and the design load.
−## A single flag uses one halyard. Two flags flown on one pole require two separate halyards. The total flag load drives the pole sizing, so the flag count must be fixed at design time, not left to the operator. {note}
−
```datasheet
label: Flags flown per pole
…5 unchanged lines
```
+## A single flag uses one halyard. Two flags flown on one pole require two separate halyards. The total flag load drives the pole sizing, so the flag count must be fixed at design time, not left to the operator. {note}
+
# Halyard System {toc}
## The halyard system type shall be specified based on the security and operational needs of the site.
−## An external halyard runs the rope and snap hooks down an exposed cleat on the shaft; it is simple and economical but exposed to tampering and rope theft. An internal halyard encloses the rope within the shaft behind a locking access door operated by a cam cleat or winch. A motorized internal winch raises and lowers the flag electrically. {note}
−
−## An internal halyard shall be specified as the default for schools, transit, urban plazas, and other high-traffic or vandalism-prone locations.
−
−## External cleat hardware in public locations is routinely tampered with and the rope is stolen. The internal halyard with a locking access door is the appropriate default wherever the pole is within reach of the public. {note}
−
```datasheet
label: Halyard system
…7 unchanged lines
```
+## An external halyard runs the rope and snap hooks down an exposed cleat on the shaft; it is simple and economical but exposed to tampering and rope theft. An internal halyard encloses the rope within the shaft behind a locking access door operated by a cam cleat or winch. A motorized internal winch raises and lowers the flag electrically. {note}
+
+## An internal halyard shall be specified as the default for schools, transit, urban plazas, and other high-traffic or vandalism-prone locations.
+
+## External cleat hardware in public locations is routinely tampered with and the rope is stolen. The internal halyard with a locking access door is the appropriate default wherever the pole is within reach of the public. {note}
+
## Internal halyard access doors shall be flush, weather-resistant, and provided with a keyed or cylinder lock.
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## The pole finish shall be specified by type, class, and color.
−## Clear anodize is the most common metal finish and is economical and durable. Dark bronze anodize and architectural paint or polyester powder coat are selected where color is part of the design. Fiberglass poles are typically furnished with a factory gel-coat or painted finish. {note}
−
```datasheet
label: Pole finish
…8 unchanged lines
```
+## Clear anodize is the most common metal finish and is economical and durable. Dark bronze anodize and architectural paint or polyester powder coat are selected where color is part of the design. Fiberglass poles are typically furnished with a factory gel-coat or painted finish. {note}
+
## Anodized finishes shall be Class I with a minimum coating thickness of 0.7 mil, conforming to the Aluminum Association AA-M12C22A41 designation or equivalent.
−## Class I anodize at 0.7 mil minimum is the durable architectural grade. A thinner Class II anodize is decorative only and is not appropriate for an exterior pole, particularly in coastal exposures where periodic washing is also required to preserve the finish. {note}
−
```datasheet
label: Minimum anodize coating thickness
…6 unchanged lines
```
+## Class I anodize at 0.7 mil minimum is the durable architectural grade. A thinner Class II anodize is decorative only and is not appropriate for an exterior pole, particularly in coastal exposures where periodic washing is also required to preserve the finish. {note}
+
# Foundation {toc}
## The foundation shall be designed for the specified design wind speed and the actual soil conditions, and shall not rely on a rule-of-thumb embedment alone.
−## A common rule of thumb sets ground-set embedment at roughly 10% of the above-grade height — about 3 ft for a 30 ft pole. This is a planning figure only. The manufacturer's published embedment table for the specified wind speed, or a site-specific structural design correlated to the geotechnical report, governs the actual embedment, which can be non-conservative in soft, expansive, or seismic soils. {note}
−
−## Foundation design responsibility shall be assigned explicitly.
−
−## For routine sites the manufacturer's standard embedment table is acceptable. For high-wind sites, soft or expansive soils, or seismic zones, a site-specific foundation designed by the project structural engineer is required. {note}
−
```datasheet
label: Foundation design basis
…5 unchanged lines
```
+## A common rule of thumb sets ground-set embedment at roughly 10% of the above-grade height — about 3 ft for a 30 ft pole. This is a planning figure only. The manufacturer's published embedment table for the specified wind speed, or a site-specific structural design correlated to the geotechnical report, governs the actual embedment, which can be non-conservative in soft, expansive, or seismic soils. {note}
+
+## Foundation design responsibility shall be assigned explicitly.
+
+## For routine sites the manufacturer's standard embedment table is acceptable. For high-wind sites, soft or expansive soils, or seismic zones, a site-specific foundation designed by the project structural engineer is required. {note}
+
## Concrete for the foundation shall have a minimum compressive strength of 3,000 psi at 28 days and shall comply with [[sync/cast-in-place-concrete]].
…34 unchanged lines
## Coring a foundation after the fact to add illumination is costly and is often left to a tenant who cannot perform it. The conduit stub-up must be coordinated and installed before the pour. Provide a minimum 1 in EMT or rigid galvanized steel conduit, with the equipment grounding conductor sized per NEC 250.122. The conduit stub-up location is shown on the foundation detail [[drawing: illumination conduit stub-up at flagpole base]]. {note}
+## The illumination provision shall be specified, and any required conduit stub-up shall be installed before the foundation pour and coordinated with the foundation detail.
+
```datasheet
label: Illumination provision
…7 unchanged lines
```
+## The minimum illumination conduit size shall be specified, with its stub-up location coordinated on the foundation detail before the footing is poured.
+
```datasheet
label: Minimum illumination conduit size
…61 unchanged lines
## The manufacturer shall warrant the pole shaft and finish against defects in materials and workmanship for the period specified.
−## Commercial flagpole shafts are commonly warranted for a long term, and the finish carries its own warranty period. The motorized winch, where provided, typically carries a shorter mechanical warranty. State the required periods so the submittal can be checked against them. {note}
−
```datasheet
label: Pole shaft warranty period
…19 unchanged lines
```
+## Commercial flagpole shafts are commonly warranted for a long term, and the finish carries its own warranty period. The motorized winch, where provided, typically carries a shorter mechanical warranty. State the required periods so the submittal can be checked against them. {note}
+
# Spare Parts {toc}
## The Contractor shall furnish spare halyard rope and snap hooks for each pole.
−## Halyard rope and snap hooks are the wearing components most likely to need replacement, and matching spares avoid downtime when a flag cannot be raised. Spare quantities are stated below. {note}
−
```datasheet
label: Spare halyard rope (per pole)
…14 unchanged lines
default: 2
```
+
+## Halyard rope and snap hooks are the wearing components most likely to need replacement, and matching spares avoid downtime when a flag cannot be raised. Spare quantities are stated below. {note}