Patent Application
20130082227
The present invention relates generally to a roof safety rail for use on a building for fall prevention. In particular the inventions relates to a roof safety rail system for use on the outer perimeter of a roof that provides an improved roof safety rail system where permanent installation is accomplished without penetrating the exterior roof membrane or the exterior roofing material that covers the anchoring points of the safety rail whereby eliminating the possibility of weather elements entering the building through the fasteners used to secure the roof safety rail system.
Federal and state regulations, as well as insurance providers, require the use of roof safety systems to prevent workers from falling from a roof during construction or maintenance repairs. In certain instances if the proper safety procedures are not followed, governmental organizations such as OSHA can levy fines against companies and building owners due to non-compliance.
The safety systems are important from a regulation standpoint and a good business practice. The systems design protects workers from accidental falls and the resulting injuries or death that can occur. Minimizing these types of accidents and the resultant repercussions is important to a company. Currently, there are numerous safety rail systems used in the industry with the systems divided into two categories, a) permanent and b) temporary. Both types of systems ensure the safety of workers and have important distinct features but both have limitations.
Temporary rail safety system designs used in the industry allow a worker to erect the temporary system on the roof of a building, which allows a worker to complete a task and then remove for later use. The erection of a temporary system does not require penetrating the roofing material, which can lead to exposure of the building to weather elements, such as water. But, because of the temporary nature of this type of rail safety system many limitations are readily apparent. First, temporary systems must be put in place before a worker can begin any maintenance work on the roof. Because the safety system is not permanently affixed to the structure it creates additional work before performing the maintenance, which can lead to the potential for non-compliance because the worker does not take the time to erect the temporary safety system or does not erect it correctly. In a worker's rush to accomplish a routine maintenance task on the roof, they may choose to not put in place the safety system. If work is undertaken without the safety system in place the building owner or company could be liable to OSHA or other governmental fines, even if an accident did not occur. Additionally, temporary rail safety systems can also lack in rigidity and may not provide the support or strength that a permanent rail safety system provides. This lack of stability and strength can lead to the failure of the temporary system and injury to a worker who relies on the rail safety system.
Permanent rail safety system designs are a permanent fixture installed on the roof of a building to ensure compliance and safety standards are met. Permanent systems provide a strong and secure system because it is anchored to the building. The numerous permanent rail safety systems available on the market require anchoring to the roof through the penetration of the roof membrane, such as the use of pitch pockets, resulting in the possibility of weather elements, such as rain and snow entering and causing damage to the building. The permanent system designs fixedly attach to the building through known anchoring mechanisms, but the attachment requires penetration through the roof and into the building. To minimize the potential for water leakage because of the roof penetration, application of materials such as caulking, tar, or other water repellant products to where the roof penetration occurs helps, but ultimately the products are known to fail and leave the roof vulnerable to exposure to weather elements. Because of the requirement for creating a break in the exterior roofing membrane, an owner must maintain the penetrations continually to ensure the products used to create a water tight roof system do not fail.
Therefore a need exists for a roof safety system designed for permanent affixation to the building structure ensuring a strong secure attachment, but does not require penetration through the roof membrane, further ensuring the roof is water tight. The roof safety system design should include permanent affixation but allow the reuse of roofing materials such as drip edges, gravel stops, rakes copings and gutters for retrofit construction or standard roofing materials as described above for new construction to create the water tight exterior. The roof safety system will allow the roof membrane to cover all fasteners used to affix or secure the rail safety system to the roof creating a safety system that will not require continual maintenance and supervision to ensure a functional weather tight roof exterior.
The present invention is a safety roof rail system configured for permanent attachment to a building. The roof safety system includes an anchor plate, a sleeve, a stanchion, and a rail configured for permanent attachment to a building without penetrating the building's exterior roofing system to create the roof safety system
The roof safety system design provides a permanent railing system for installation on the perimeter of a building's roof to ensure that when a worker conducts maintenance or is on the roof that all government regulations and insurance requirements are met for use of proper safety railings.
A further object of the invention is to provide a permanent safety rail system that when installed does not penetrate the roof membrane or outer surface of the roof. Limiting the penetration of the roof membrane or outer surface of the roof, minimizes the risk of weather elements, such as water, entering the building especially through the fastener attachments and causing damage to the structure.
A further object of the invention is to provide a safety rail system for use with existing roofing systems. The safety rail system configuration for use on an existing roof allows the reuse of roof materials such as copings, drip edges, gutters, rakes, and gravel stops after installing the safety rail system. Additionally, the safety rail system installation on new construction allow the use of standard roof materials to create a complete covering that covers and conceals all fasteners used to secure the safety rail system to the building. Since covering the fasteners occur, without penetrating the outer membrane, a better weather tight roof system is present requiring less maintenance and continual supervision.
To meet the objects the safety rail system invention generally comprises a plurality of anchor plates configured in an L-shape, a plurality of sleeve members configured to attach to the anchor plates and further receive a stanchion, the system includes a plurality of stanchions for use with the plurality of sleeves allowing insertion of the stanchions into the sleeves in an upright orientation, and at least one safety rail configured to attach to the stanchions creating a boundary around the perimeter of the building. The anchor plate and sleeve configuration allow the anchoring of the safety system to the building through the use of typical fasteners, but the configuration of the anchor plate allows for the contour to follow that of the building whereby allowing standard roofing components to cover the fasteners creating a weather tight roof system.
Other objects of the present invention relate to a permanent roof railing system that does not penetrate the outer surface of the roof membrane will become readily apparent upon reading the following detailed description in conjunction with the accompanying drawings and claims.
The accompanying drawings illustrate embodiments of the invention and are for illustration by way of example and not limitations.
The present invention is to a roof safety rail apparatus as shown in
The rail safety system is shown in multiple views in
The anchor plate design allows the rail safety system to be attached to the building in a permanent manner as shown in
The safety rail system further includes a sleeve member 12 designed to attach to the anchor plate 10 and receive a stanchion 14. In one embodiment, the sleeve member is configured in a rectangular dimension with a flat surface to allow the sleeve to communicate with the vertical surface 22 of the anchor plate. In another embodiment, the sleeve member is a semicircular or any other dimension but includes a flat surface to communicate with and contour to the anchor plate surface. In one embodiment, the sleeve is attached to the end of the vertical surface opposite the horizontal surface. The design of the sleeve creates a surface that communicates with and contours to the anchor plate to ensure proper attachment. In another embodiment, the sleeve can be any dimensional shape as long as it contours to the surface of the anchor plate to allow attachment to the anchor plate. The longitudinal axis of the sleeve extends in a general vertical direction with the vertical surface of the anchor plate. The design of the sleeve includes a first opening 26 at one end, positioned such to receive a stanchion 14 and directing the stanchion in a generally vertical position extending away from the sleeve. In another embodiment, the sleeve will include a second opening to act as a weeping hole 28 to ensure if any moisture enters the sleeve or stanchion that it can escape. The weep hole general location is opposite the first opening, but can be located anywhere on the sleeve that will allow moisture to escape. In one embodiment, the sleeve is fixedly attached to the anchor plate by any means known in the industry such as welding 42 or other permanent attachment to the outer surface of the anchor plate as demonstrated in
The sleeve 12 design receives a stanchion 14 in a slidably receiving action. The stanchion will fit within the sleeve and attach to the sleeve and/or anchor plate. In one embodiment, the sleeve will include a through-hole 30 to allow the attachment of the sleeve to the stanchion in a removable or fixed attachment. In one embodiment, the through-hole is positioned only through the sleeve member. In another embodiment, the through hole is positioned through the sleeve and the anchor plate. The through-hole design allows a fastening member 32, such as a screw, bolt, rivet, locking pin or any other anchor known in the industry to create an attachment between the sleeve and stanchion. In another embodiment the stanchion configuration allows for permanent attachment to the sleeve such as welding the sleeve and stanchion 27 together, or by any means known in the industry that permanently affix the stanchion and sleeve together.
The sleeve configuration holds the stanchion in a vertical orientation to create an upright for attachment of the rails 16 to create the safety rail system 100. The stanchion in one embodiment, is a tubular member configured to fit within the sleeve see
The rail safety system further includes safety rails 16 designed for attachment to the stanchions. In one embodiment, the stanchion will include a fastening mechanism to allow the attachment of safety rails. In another embodiment, the stanchion will include more than one fastening mechanism to attach more than one safety rail. The safety rails configuration is a perpendicular orientation with the stanchions and parallel to the roof surface. In one embodiment, the rail safety system will include two safety rails oriented parallel to each other and perpendicular to the stanchion. In another embodiment, the rail safety system will include two or more safety rails. In another embodiment, the rail safety system will include one safety rail. In one embodiment, the safety rail will attach to the vertical top portion of the stanchion. In another embodiment, the safety rail will attach to the angled intermediate portion of the stanchion. In another embodiment, the safety rail will attach to the bottom vertical portion of the stanchion. In another embodiment, the system will include more than one safety rail with attachment to a combination of the vertical top portion, the vertical bottom portion, the angled intermediate portion or combinations thereof. The safety rail composition includes any material known in the industry used to manufacture a safety rail including but not limited to metal such as steel or aluminum, metal wire/cable, plastic, wood or any other natural or man-made material. The safety rail can be a fixed dimension or alternatively adjustable in length to fit a desired space.
The rail safety system 100 design of the present invention allows easy installation and does not require penetration of the roof system. The anchor plate attaches to the building roof edge or perimeter lip edge of the roof and/or building outer wall. The anchor plate design allows for fasteners to pass into the building with a plurality of through-holes. The anchor plate L-design with through-holes on the horizontal surface of the anchor plate allows a user to securely affix the anchor plate to the roof horizontal surface or perimeter horizontal ledge of the roof. Additionally, through-holes on the vertical surface of the anchor plate allows the application of additional fasteners to the outer wall of the building for increased strength and stability. Any fastener known in the industry can be used but the specific fastener selected will depend on the building subsurface to which it attaches. The anchor plate contacts the surface of the building with the horizontal surface contacting the horizontal surface of the roof and the vertical surface of the anchor plate contacting the vertical surface of the building outer wall. The L-shape design of the anchor plate and attachment placement of the sleeve member allows for the anchor plate to rest under the roof system of the building. The anchor plate as designed will fit under drip edges, gravel stops, rakes, and copings. In addition the rail safety system design allows the anchor plate to fit within a gutter without modification or adjustments made to the gutter 110 system. Advantageously, the safety rail system can be used with existing roofing systems without the requirement of penetration of the roof material. By removing the requirement to penetrate the roof membrane the potential damage related to water leakage is minimized.
The design of the rail safety system allows the roof system, such as the drip edge, copings, rakes, or roof membranes to cover the anchor plate so no fastener used to attach the anchor plate is exposed to the elements. By covering the fasteners with the roof system of the building a rail safety system is permanently installed without the potential for weather elements such as rain and snow to contact the building subsurface where the fasteners attach. Installing a safety rail system that does not penetrate the roof system creates a superior safety system that requires less maintenance. Additionally, the design of the safety rail system allows a user to make repairs or complete replacement of the roofing materials without removing or altering the attachment of the safety rail system.
Thus, there has been described a roof safety rail system and a method for using. It is apparent to those skilled in the art, however, that many changes, variations, modifications, other uses, and applications to the support structure method for using are possible, and also such changes, variations, modifications, other uses, and applications which do not depart from the spirit and scope of the invention are deemed covered by the invention, which is limited only by the claims which follow.
