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Knock-down roof curb

Inactive Publication Date: 2006-04-06
BUTLER MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] The invention is a standardized, corrosion-resistant roof curb that can be shipped in a disassembled state, which an installer may assemble, size, locate and configure to provide an appropriate roof slope on any roof without welding.
[0008] The invention provides improved elements and arrangements thereof, for the purposes described, which are inexpensive, dependable and effective in accomplishing intended purposes of the invention.

Problems solved by technology

Designing and building these traditional roof curbs, often formed from a singular piece of metal to uniquely accommodate a particular roof pitch, has been a laborious and time consuming task for roof curb manufacturers and rooftop appliance installers.
This untimely design-and-build practice delays appliance installation.
However, this method requires cutting a hole in the roof that is larger than the opening for the equipment that may be susceptible to leakage.
Prefabricated roof curbs tend to be quite large, thus have been difficult to ship in a cost effective and timely fashion, let alone by traditional rapid delivery methods.
Consequently, roof curb manufacturers have had to ship their products by truck, which is slower and more expensive.
However, on-site sizing and drilling of traditional roof curb panels creates exposure to corrosive weathering.

Method used

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Examples

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Embodiment Construction

[0026] Referring to FIGS. 1-3, an embodiment of a roof curb 100 configured according to the invention includes four walls 105 interconnected with four connection blocks 110, defining a roof curb base 112, for mounting on a roof R. Four composite boards 115 mount on walls 105 and support an appliance (not shown).

[0027] In practice, walls 105 are cut into standardized lengths that foster ready packaging in standard shipping containers along with other components described herein for conventional or overnight courier delivery. Aluminum extrusion stock permits on-site sizing of the standard pieces without local burning off of corrosion resistant coatings ordinarily required for steel stock. Using aluminum stock also eliminates routine rust inhibitor paint coatings that would be required to protect steel stock.

[0028] Referring also to FIG. 4, each wall 105 is constructed of extruded aluminum having a lower flange 120 and an upper channel 125. Each flange 120 is inwardly-disposed to lim...

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PUM

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Abstract

A standardized, corrosion-resistant roof curb that can be shipped in a disassembled state, which an installer may assemble, size, locate and configure to provide an appropriate roof slope on any roof without welding, includes a panel and an extrusion configured to receive the panel, wherein the panel is trimmed according to the pitch of the roof. Methods of making and installing the roof curb also are disclosed.

Description

BACKGROUND OF THE INVENTION [0001] Metal buildings having metal roofing have become popular for commercial, industrial and warehousing uses. These buildings often require roof openings for skylights, fans, air conditioning units and the like. The installation of such equipment requires a roof curb for support. [0002] Traditionally, roof curbs have been designed specifically and custom made to provide a relatively horizontal mounting structure for a particular rooftop appliance given the shape and pitch of a particular roof. Designing and building these traditional roof curbs, often formed from a singular piece of metal to uniquely accommodate a particular roof pitch, has been a laborious and time consuming task for roof curb manufacturers and rooftop appliance installers. Further, because these roof curbs are installed in a metal roof system, the actual opening may vary with respect to the roof panel corrugations, seams or ribs, which may be ascertainable only shortly before install...

Claims

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Application Information

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IPC IPC(8): E04B7/18
CPCE04D13/0315
Inventor MCCLURE, RICHARD R.
Owner BUTLER MFG
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