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KeeGuard^® Installation Instructions General Design Rules

The modular components of the KeeGuard Fall Protection Railing System typically allow two installers to install a 150 meters run in 8 hours once all the materials are on the roof.

1. The maximum bay size for the system is 2m to meet BS EN 14122 Part 3. This is applicable to all runs of 6m and above. Below 6m, different layouts apply. Only the Galvanised Steel Tube system can be used in the unrestrained way.
2. All corners need support within 0.5m to ensure that counter-balances do not clash, with a cumulative distance between uprights adjacent to corners not exceeding the maximum bay size (e.g. 0.5 + 1.5, or 0.3 + 1.7 etc). Variable angle corner joints of greater than 90° need additional support.The suggested approved methods are shown in Fig 8.0 b)
3. Free ends (i.e. not fixed to adjacent walls) must have additional weight to counter act the lack of material on both sides. In general cases this is in the form of a CB4P.
4. All intermediate KGU's (on runs of 6m and above) utilise CB1P balance weights.
5. In case where there is no up-stand (minimum of 150mm), no means of attaching a structural tie, and the system is within 2m of the roof edge, extra weight is required on free ends. This is applied in the form of a CB7P on the ends.
6. The maximum span from a wall fixing to the next KGU must not exceed the maximum bay size. The wall fixing replaces the end KGU, and all other components remain as if the run was free-standing.
7. For Galv Tube runs longer than 4m, each section of top & mid rail must be at least 4.2m long (based on 2m maximum bay size). Shorter sections are only permissible at the start or end of a run. Straight 'butt' joints are to be made with 14-8 components, with top & mid rail connections being staggered into adjacent bays to avoid 'weak point' on terms of deflection criteria. Standard KeeGuard is suitable for use on mineral felt and single ply membrane roof surfaces. Kee Safety Ltd would advise a 300mm x 300mm x 25mm 'spartan' tile or its equivalent be used under all points of contact on asphalt roofs.
8. KeeGuard is suitable for fitting on Sarnafil membranes however it will be necessary to incorporate a section of fleece product to act as a barrier between the underside of the keeGuard and the membrane (for further technical assistance, contact the membrane manufacturer).

Suggested 3-Part Specification

KEEGUARD^® ROOF EDGE GUARD RAIL SYSTEM

PART I - GENERAL

Summary: Provide and install freestanding KeeGuard Roof Edge Fall Protection System, including tube railings, uprights, bases, counterweights, fittings and delivery to site.

Reference: HSG-33 Health & Safety in Roof Work. (UK), INDG 284 "Working on Flat Roofs", Working At Heights Regulations (UK) & Health, Safety & Welfare regulation 13 "Falls or Falling Objects" 1992 (UK).

Finish:

1. Tube for handrails, mid-rails, uprights and counterweight connection is to be galvanised mill finish to the requirements of BS EN 10255 (ISO 65).
2. Kee Klamp® Fittings shall be galvanized to meet BS EN 10255 (ISO 65).

Design Requirements:

1. Railing shall consist of top rails, mid rails, uprights, counterweights and connections.
2. All tube connections to be Kee Klamp structural tube fittings manufactured to the requirements of EN 13374 Class A (loading & Deflection), HSE Specialist Report No 15- (UK-out of print) & EN ISO 14122:PT3 - (European).
3. Railing assembly shall be capable of withstanding a load of at least 200 pounds applied in any direction at any point on the top rail. Test in accordance with BS 6399:Part 2 1995 Wind Code (UK).

Submittals:

1. Shop drawing: Indicate profiles, sizes, connections, size and type of fasteners and accessories.
   

Field Measurements:

1. Verify field measurements prior to assembly and/or ordering.

PART II - PRODUCTS

Manufacturer:

Kee Safety, Ltd., 1 Boulton Road, Reading, RG2 0NH, UK
Model: KeeGuard Roof Edge Fall Protection System.

Components:

1. Steel Tube: BS EN 10255 (ISO 65). 48.3mm O/D, galvanised.
2. Mid Rail Inclusive 48.3mm O/D uprights and railings to EN 39
3. Kee Klamp fittings: Corrosion resistant - BS EN ISO 1461 finish on all fitting - Elbows, Crossovers, Wall flanges, Tees, Couplings.
4. Mounting Bases: Steel bases are galvanised and are supplied with a rubber pad on underside of the component.
5. Counterweights: PVC counterweights, made from recycled materials are supplied.

Assembly:

1. Fit and shop-assembled components in largest practical sizes for delivery to site.
2. Upright tops shall be plugged with weather and light resistant material.
3. Assemble components with joints tightly fitted and secured with set screws tightened to 29 foot pounds of torque.
4. Accurately form components to suit installation.

PART III - EXECUTION

Installation:

1. For all connections with Kee Klamp fittings, each set screw is to be tightened to 29 foot pounds of torque.
2. Placement of uprights and counterweights to meet manufacturer specifications as stated in the KeeGuard Installation Instructions.
3. Terminate the run as stated in the KeeGuard Installation Instructions.

Schedules:

1. Freestanding counterweighted guardrail system with 1100mm nominal height to provide a pedestrian egress barrier on the roof which withstands a minimum load of 300 N/m. in any direction applied to the top rail per EN 14122 part 3

Acceptable low slope, roof edge fall protection to be KeeGuard, manufactured by Kee Safety.

Sample KeeGuard Configurations

Unrestrained configuration, used when there is no roof parapet of 150mm or more.

Restrained configuration, used when there is a roof parapet of 150mm or more.