Building Diagram Number - Revision history

WikiAdmin: WikiAdmin moved page Building Diagram Numbers to Building Diagram Number

2025-03-10T14:16:48Z

WikiAdmin moved page Building Diagram Numbers to Building Diagram Number

← Older revision	Revision as of 07:16, 10 March 2025
(No difference)

WikiAdmin at 16:50, 10 December 2024

2024-12-10T16:50:07Z

← Older revision		Revision as of 09:50, 10 December 2024
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	~~{{draft}}~~
	'''Building Diagram Numbers''' are a field on the [[Elevation Certificate]] that is used to classify a building’s [[NFIP Foundations\|foundation type]]. They are used by surveyors, architects, and engineers to document and communicate a building’s structural setup.		'''Building Diagram Numbers''' are a field on the [[Elevation Certificate]] that is used to classify a building’s [[NFIP Foundations\|foundation type]]. They are used by surveyors, architects, and engineers to document and communicate a building’s structural setup.

WikiAdmin at 16:48, 10 December 2024

2024-12-10T16:48:07Z

← Older revision		Revision as of 09:48, 10 December 2024
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	\|7		\|7
	\|Elevated on Solid Perimeter Walls		\|Elevated on Solid Perimeter Walls
	\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. [[NFIP Foundations#~~Enclosures~~\|Walk-out basements qualify as Diagram Number 7]].		\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. [[NFIP Foundations#Walkout Basements\|Walk-out basements qualify as Diagram Number 7]].
	\|[[File:Img-nfip-bdn-7.png\|240px\|link=]]		\|[[File:Img-nfip-bdn-7.png\|240px\|link=]]
	\|-		\|-

WikiAdmin at 16:47, 10 December 2024

2024-12-10T16:47:42Z

← Older revision		Revision as of 09:47, 10 December 2024
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	\|7		\|7
	\|Elevated on Solid Perimeter Walls		\|Elevated on Solid Perimeter Walls
	\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. Walk-out basements qualify as ~~this diagram number (see below)~~.		\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. [[NFIP Foundations#Enclosures\|Walk-out basements qualify as Diagram Number 7]].
	\|[[File:Img-nfip-bdn-7.png\|240px\|link=]]		\|[[File:Img-nfip-bdn-7.png\|240px\|link=]]
	\|-		\|-

WikiAdmin at 16:42, 10 December 2024

2024-12-10T16:42:05Z

← Older revision		Revision as of 09:42, 10 December 2024
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	Slab on Fill		Slab on Fill
	\|Concrete slab poured over a stem wall foundation, often with earthen fill mounded inside the stem wall.		\|Concrete slab poured over a stem wall foundation, often with earthen fill mounded inside the stem wall.
	\|[[File:Img-nfip-bdn-1b.png\|link=]]		\|[[File:Img-nfip-bdn-1b.png\|240px\|link=]]
	\|-		\|-
	\|2A		\|2A
	\|Basement		\|Basement
	\|The bottom floor is below ground level (grade) on all sides. The basement level measures more than five feet to the floor above it.		\|The bottom floor is below ground level (grade) on all sides. The basement level measures more than five feet to the floor above it.
	\|[[File:Img-nfip-bdn-2a.png\|link=]]		\|[[File:Img-nfip-bdn-2a.png\|240px\|link=]]
	\|-		\|-
	\|2B		\|2B
	\|Basement with sub-grade egress		\|Basement with sub-grade egress
	\|The bottom floor is below ground level on all sides, and the area of egress is also below grade on all sides. This also applies to buildings with negative flow.		\|The bottom floor is below ground level on all sides, and the area of egress is also below grade on all sides. This also applies to buildings with negative flow.
	\|[[File:Img-nfip-bdn-2b.png\|link=]]		\|[[File:Img-nfip-bdn-2b.png\|240px\|link=]]
	\|-		\|-
	\|3		\|3
	\|Split-level Slab		\|Split-level Slab
	\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits at or above ground level.		\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits at or above ground level.
	\|[[File:Img-nfip-bdn-3.png\|link=]]		\|[[File:Img-nfip-bdn-3.png\|240px\|link=]]
	\|-		\|-
	\|4		\|4
	\|Split-level Basement		\|Split-level Basement
	\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits below ground level on all sides.		\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits below ground level on all sides.
	\|[[File:Img-nfip-bdn-4.png\|link=]]		\|[[File:Img-nfip-bdn-4.png\|240px\|link=]]
	\|-		\|-
	\|5		\|5
	\|Elevated without Enclosure		\|Elevated without Enclosure
	\|The area below the elevated floor is open, with no obstruction to the flow of floodwaters. Open lattice and insect screening is permissible. "Pier and beam" foundations.		\|The area below the elevated floor is open, with no obstruction to the flow of floodwaters. Open lattice and insect screening is permissible. "Pier and beam" foundations.
	\|[[File:Img-nfip-bdn-5.png\|link=]]		\|[[File:Img-nfip-bdn-5.png\|240px\|link=]]
	\|-		\|-
	\|6		\|6
	\|Elevated on Piers, Posts, or Piles with Enclosure		\|Elevated on Piers, Posts, or Piles with Enclosure
	\|The elevated floor is raised by piers, posts, or piles. An area below the elevated floor is enclosed, either partially (a portion of the building footprint) or fully (encloses the entire building footprint). The enclosure measures more than five feet to the floor above it.		\|The elevated floor is raised by piers, posts, or piles. An area below the elevated floor is enclosed, either partially (a portion of the building footprint) or fully (encloses the entire building footprint). The enclosure measures more than five feet to the floor above it.
	\|[[File:Img-nfip-bdn-6.png\|link=]]		\|[[File:Img-nfip-bdn-6.png\|240px\|link=]]
	\|-		\|-
	\|7		\|7
	\|Elevated on Solid Perimeter Walls		\|Elevated on Solid Perimeter Walls
	\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. Walk-out basements qualify as this diagram number (see below).		\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. Walk-out basements qualify as this diagram number (see below).
	\|[[File:Img-nfip-bdn-7.png\|link=]]		\|[[File:Img-nfip-bdn-7.png\|240px\|link=]]
	\|-		\|-
	\|8		\|8
	\|Above-grade Crawlspace		\|Above-grade Crawlspace
	\|The main floor is raised above ground by any method, so long as the crawlspace (enclosure) floor sits at or above the surrounding grade. The crawlspace measures five feet or less to the floor above it.		\|The main floor is raised above ground by any method, so long as the crawlspace (enclosure) floor sits at or above the surrounding grade. The crawlspace measures five feet or less to the floor above it.
	\|[[File:Img-nfip-bdn-8.png\|link=]]		\|[[File:Img-nfip-bdn-8.png\|240px\|link=]]
	\|-		\|-
	\|9		\|9
	\|Subgrade Crawlspace		\|Subgrade Crawlspace
	\|The floor above the crawlspace is raised above ground by any method, but the crawlspace floor sits below the surrounding grade on all sides, like a basement. Subgrade crawlspaces must conform to the 2-foot/5-foot rule (see below).		\|The floor above the crawlspace is raised above ground by any method, but the crawlspace floor sits below the surrounding grade on all sides, like a basement. Subgrade crawlspaces must conform to the 2-foot/5-foot rule (see below).
	\|[[File:Img-nfip-bdn-9.png\|link=]]		\|[[File:Img-nfip-bdn-9.png\|240px\|link=]]
	\|}		\|}

WikiAdmin at 16:41, 10 December 2024

2024-12-10T16:41:30Z

← Older revision		Revision as of 09:41, 10 December 2024
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	\|Slab on Grade		\|Slab on Grade
	\|Bottom floor directly on the ground, no additional fill used. Often seen in flat areas.		\|Bottom floor directly on the ground, no additional fill used. Often seen in flat areas.
	\|[[File:Img-nfip-bdn-1a.png\|~~200px~~\|link=]]		\|[[File:Img-nfip-bdn-1a.png\|240px\|link=]]
	\|-		\|-
	\|1B		\|1B

WikiAdmin at 16:41, 10 December 2024

2024-12-10T16:41:19Z

← Older revision		Revision as of 09:41, 10 December 2024
Line 14:		Line 14:
	\|Slab on Grade		\|Slab on Grade
	\|Bottom floor directly on the ground, no additional fill used. Often seen in flat areas.		\|Bottom floor directly on the ground, no additional fill used. Often seen in flat areas.
	\|[[File:Img-nfip-bdn-1a.png\|link=]]		\|[[File:Img-nfip-bdn-1a.png\|200px\|link=]]
	\|-		\|-
	\|1B		\|1B

WikiAdmin at 16:40, 10 December 2024

2024-12-10T16:40:55Z

← Older revision		Revision as of 09:40, 10 December 2024
Line 14:		Line 14:
	\|Slab on Grade		\|Slab on Grade
	\|Bottom floor directly on the ground, no additional fill used. Often seen in flat areas.		\|Bottom floor directly on the ground, no additional fill used. Often seen in flat areas.
	\|[[File:Img-nfip-bdn-1a.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-1a.png\|link=]]
	\|-		\|-
	\|1B		\|1B
Line 20:		Line 20:
	Slab on Fill		Slab on Fill
	\|Concrete slab poured over a stem wall foundation, often with earthen fill mounded inside the stem wall.		\|Concrete slab poured over a stem wall foundation, often with earthen fill mounded inside the stem wall.
	\|[[File:Img-nfip-bdn-1b.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-1b.png\|link=]]
	\|-		\|-
	\|2A		\|2A
	\|Basement		\|Basement
	\|The bottom floor is below ground level (grade) on all sides. The basement level measures more than five feet to the floor above it.		\|The bottom floor is below ground level (grade) on all sides. The basement level measures more than five feet to the floor above it.
	\|[[File:Img-nfip-bdn-2a.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-2a.png\|link=]]
	\|-		\|-
	\|2B		\|2B
	\|Basement with sub-grade egress		\|Basement with sub-grade egress
	\|The bottom floor is below ground level on all sides, and the area of egress is also below grade on all sides. This also applies to buildings with negative flow.		\|The bottom floor is below ground level on all sides, and the area of egress is also below grade on all sides. This also applies to buildings with negative flow.
	\|[[File:Img-nfip-bdn-2b.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-2b.png\|link=]]
	\|-		\|-
	\|3		\|3
	\|Split-level Slab		\|Split-level Slab
	\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits at or above ground level.		\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits at or above ground level.
	\|[[File:Img-nfip-bdn-3.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-3.png\|link=]]
	\|-		\|-
	\|4		\|4
	\|Split-level Basement		\|Split-level Basement
	\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits below ground level on all sides.		\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits below ground level on all sides.
	\|[[File:Img-nfip-bdn-4.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-4.png\|link=]]
	\|-		\|-
	\|5		\|5
	\|Elevated without Enclosure		\|Elevated without Enclosure
	\|The area below the elevated floor is open, with no obstruction to the flow of floodwaters. Open lattice and insect screening is permissible. "Pier and beam" foundations.		\|The area below the elevated floor is open, with no obstruction to the flow of floodwaters. Open lattice and insect screening is permissible. "Pier and beam" foundations.
	\|[[File:Img-nfip-bdn-5.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-5.png\|link=]]
	\|-		\|-
	\|6		\|6
	\|Elevated on Piers, Posts, or Piles with Enclosure		\|Elevated on Piers, Posts, or Piles with Enclosure
	\|The elevated floor is raised by piers, posts, or piles. An area below the elevated floor is enclosed, either partially (a portion of the building footprint) or fully (encloses the entire building footprint). The enclosure measures more than five feet to the floor above it.		\|The elevated floor is raised by piers, posts, or piles. An area below the elevated floor is enclosed, either partially (a portion of the building footprint) or fully (encloses the entire building footprint). The enclosure measures more than five feet to the floor above it.
	\|[[File:Img-nfip-bdn-6.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-6.png\|link=]]
	\|-		\|-
	\|7		\|7
	\|Elevated on Solid Perimeter Walls		\|Elevated on Solid Perimeter Walls
	\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. Walk-out basements qualify as this diagram number (see below).		\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. Walk-out basements qualify as this diagram number (see below).
	\|[[File:Img-nfip-bdn-7.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-7.png\|link=]]
	\|-		\|-
	\|8		\|8
	\|Above-grade Crawlspace		\|Above-grade Crawlspace
	\|The main floor is raised above ground by any method, so long as the crawlspace (enclosure) floor sits at or above the surrounding grade. The crawlspace measures five feet or less to the floor above it.		\|The main floor is raised above ground by any method, so long as the crawlspace (enclosure) floor sits at or above the surrounding grade. The crawlspace measures five feet or less to the floor above it.
	\|[[File:Img-nfip-bdn-8.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-8.png\|link=]]
	\|-		\|-
	\|9		\|9
	\|Subgrade Crawlspace		\|Subgrade Crawlspace
	\|The floor above the crawlspace is raised above ground by any method, but the crawlspace floor sits below the surrounding grade on all sides, like a basement. Subgrade crawlspaces must conform to the 2-foot/5-foot rule (see below).		\|The floor above the crawlspace is raised above ground by any method, but the crawlspace floor sits below the surrounding grade on all sides, like a basement. Subgrade crawlspaces must conform to the 2-foot/5-foot rule (see below).
	\|[[File:Img-nfip-bdn-9.png\|~~thumb~~]]		\|[[File:Img-nfip-bdn-9.png\|link=]]
	\|}		\|}

WikiAdmin at 16:40, 10 December 2024

2024-12-10T16:40:08Z

← Older revision		Revision as of 09:40, 10 December 2024
Line 14:		Line 14:
	\|Slab on Grade		\|Slab on Grade
	\|Bottom floor directly on the ground, no additional fill used. Often seen in flat areas.		\|Bottom floor directly on the ground, no additional fill used. Often seen in flat areas.
	\|		\|[[File:Img-nfip-bdn-1a.png\|thumb]]
	\|-		\|-
	\|1B		\|1B
Line 20:		Line 20:
	Slab on Fill		Slab on Fill
	\|Concrete slab poured over a stem wall foundation, often with earthen fill mounded inside the stem wall.		\|Concrete slab poured over a stem wall foundation, often with earthen fill mounded inside the stem wall.
	\|		\|[[File:Img-nfip-bdn-1b.png\|thumb]]
	\|-		\|-
	\|2A		\|2A
	\|Basement		\|Basement
	\|The bottom floor is below ground level (grade) on all sides. The basement level measures more than five feet to the floor above it.		\|The bottom floor is below ground level (grade) on all sides. The basement level measures more than five feet to the floor above it.
	\|		\|[[File:Img-nfip-bdn-2a.png\|thumb]]
	\|-		\|-
	\|2B		\|2B
	\|Basement with sub-grade egress		\|Basement with sub-grade egress
	\|The bottom floor is below ground level on all sides, and the area of egress is also below grade on all sides. This also applies to buildings with negative flow.		\|The bottom floor is below ground level on all sides, and the area of egress is also below grade on all sides. This also applies to buildings with negative flow.
	\|		\|[[File:Img-nfip-bdn-2b.png\|thumb]]
	\|-		\|-
	\|3		\|3
	\|Split-level Slab		\|Split-level Slab
	\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits at or above ground level.		\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits at or above ground level.
	\|		\|[[File:Img-nfip-bdn-3.png\|thumb]]
	\|-		\|-
	\|4		\|4
	\|Split-level Basement		\|Split-level Basement
	\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits below ground level on all sides.		\|The building layout has an intermediate level between an upper and lower floor. The lowest floor sits below ground level on all sides.
	\|		\|[[File:Img-nfip-bdn-4.png\|thumb]]
	\|-		\|-
	\|5		\|5
	\|Elevated without Enclosure		\|Elevated without Enclosure
	\|The area below the elevated floor is open, with no obstruction to the flow of floodwaters. Open lattice and insect screening is permissible. "Pier and beam" foundations.		\|The area below the elevated floor is open, with no obstruction to the flow of floodwaters. Open lattice and insect screening is permissible. "Pier and beam" foundations.
	\|		\|[[File:Img-nfip-bdn-5.png\|thumb]]
	\|-		\|-
	\|6		\|6
	\|Elevated on Piers, Posts, or Piles with Enclosure		\|Elevated on Piers, Posts, or Piles with Enclosure
	\|The elevated floor is raised by piers, posts, or piles. An area below the elevated floor is enclosed, either partially (a portion of the building footprint) or fully (encloses the entire building footprint). The enclosure measures more than five feet to the floor above it.		\|The elevated floor is raised by piers, posts, or piles. An area below the elevated floor is enclosed, either partially (a portion of the building footprint) or fully (encloses the entire building footprint). The enclosure measures more than five feet to the floor above it.
	\|		\|[[File:Img-nfip-bdn-6.png\|thumb]]
	\|-		\|-
	\|7		\|7
	\|Elevated on Solid Perimeter Walls		\|Elevated on Solid Perimeter Walls
	\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. Walk-out basements qualify as this diagram number (see below).		\|The elevated floor is raised by solid perimeter, load-bearing walls, which also enclose the area below the elevated floor. The enclosure measures more than five feet to the floor above it. Walk-out basements qualify as this diagram number (see below).
	\|		\|[[File:Img-nfip-bdn-7.png\|thumb]]
	\|-		\|-
	\|8		\|8
	\|Above-grade Crawlspace		\|Above-grade Crawlspace
	\|The main floor is raised above ground by any method, so long as the crawlspace (enclosure) floor sits at or above the surrounding grade. The crawlspace measures five feet or less to the floor above it.		\|The main floor is raised above ground by any method, so long as the crawlspace (enclosure) floor sits at or above the surrounding grade. The crawlspace measures five feet or less to the floor above it.
	\|		\|[[File:Img-nfip-bdn-8.png\|thumb]]
	\|-		\|-
	\|9		\|9
	\|Subgrade Crawlspace		\|Subgrade Crawlspace
	\|The floor above the crawlspace is raised above ground by any method, but the crawlspace floor sits below the surrounding grade on all sides, like a basement. Subgrade crawlspaces must conform to the 2-foot/5-foot rule (see below).		\|The floor above the crawlspace is raised above ground by any method, but the crawlspace floor sits below the surrounding grade on all sides, like a basement. Subgrade crawlspaces must conform to the 2-foot/5-foot rule (see below).
	\|		\|[[File:Img-nfip-bdn-9.png\|thumb]]
	\|}		\|}

WikiAdmin: /* Two Foot/Five Foot Rule */

2024-12-10T16:19:50Z

Two Foot/Five Foot Rule

← Older revision		Revision as of 09:19, 10 December 2024
Line 91:		Line 91:
	\| text = The elevation certificate for a building shows a Diagram Number 9, a subgrade crawlspace. The crawlspace sits 20 inches below the surrounding grade, which is flat. The main floor of the building sits 62 inches above the crawlspace floor. The foundation would be considered a Diagram Number 2, a basement.		\| text = The elevation certificate for a building shows a Diagram Number 9, a subgrade crawlspace. The crawlspace sits 20 inches below the surrounding grade, which is flat. The main floor of the building sits 62 inches above the crawlspace floor. The foundation would be considered a Diagram Number 2, a basement.
	}}		}}


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