Frontline RK050V50 Combat Plus Roofer Kit
The Frontline RK050V50 Combat Plus Roofer Kit is a complete, ready-to-work fall protection system that gives a roofer everything needed to tie off safely the moment the bag is opened: a 50VTB padded full body harness, the RO01 reusable roof anchor with nails included, and a 50 ft vertical lifeline with an integrated rope grab and shock pack. Everything packs into a duffel bag that straps across the shoulders, so both hands stay free for climbing ladders and moving across the roof. The harness and lifeline use contrasting safety-orange material for high visibility, and the universal-sizing harness fits most users. It is the go-to solution for roofers, framers, solar installers, and any crew working at height on residential and light commercial roofs.
50VTB padded harness, RO01 anchor, and 50 ft vertical lifeline in one bag · 130 to 310 lb capacity · ANSI and OSHA compliant.
What Is in the Kit
The RK050V50 is a complete Personal Fall Arrest System. Every kit ships with three working components plus the carry bag, all sized to work together right out of the box.
Combat Plus Padded Harness50VTB
- Padded full body harness with universal sizing that fits most users, with multiple points of adjustability for a snug fit
- Tongue buckle leg straps for fast, secure adjustment
- Added shoulder and leg padding for comfort during long days on the roof
- High-tenacity safety-orange polyester webbing with black stitching, so stitch inspection is easy by color contrast
- Fall indicator on the back straps and lanyard and tool tethering keepers
- Meets ANSI Z359.11-2014, capacity range 130 to 310 lbs
RO01 Reusable Roof AnchorRO01
- Hinged design accommodates most roof peaks and flat surfaces, up to a 12/12 maximum pitch
- Comes with the nails included, so it installs straight out of the bag
- High-strength plate steel with a forged D-ring and a black powder-coated finish
- 5,000 lbf (22.2 kN) minimum breaking strength
- Reusable and removable, meets ANSI Z359.18-2017
Vertical Lifeline SystemVPL50R3L
- High-tenacity polysteel rope, 5/8 inch diameter, with a knot stopper end for added safety
- Integrated manual rope grab with a built-in shock pack to reduce arrest forces
- High-grade steel rope grab with a double-locking closing mechanism for durability and security
- Lanyard with integrated shock pack and snap hook that attaches directly to the harness back D-ring
- 50 ft length, meets ANSI Z359.15-2014
Duffel Carry BagRKBAG
- Large polyester storage duffel holds the full kit and keeps gear organized
- Straps across the shoulders so both hands stay free to climb ladders and move on the roof
- Durable, jobsite-ready construction for daily transport and storage
See the RK050V50 in Action
Watch the Frontline RK050V50 Combat Plus Roofer Kit components, sizing, and on-roof setup.
Why Crews Choose This Kit
Everything in One Bag
One part number provides a roofer with a complete, compliant fall-arrest system: padded harness, anchor, lifeline, rope grab, and shock pack. There is nothing else to source or match up, so a new crew member can be protected and working in minutes instead of piecing a system together.
Padded for Long Days
The Combat Plus kit upgrades to the 50VTB padded harness, adding shoulder and leg padding that makes a real difference across a full shift. The harness and lifeline still use contrasting safety-orange material with black stitching, so the gear is easy to spot and fast to inspect.
Hands-Free Carry
The included duffel straps across the shoulders so the whole kit travels on your back, leaving both hands free to safely climb ladders and access different work areas. It is built to be the go-to solution straight out of the bag.
Built for Real Roofs
The RO01 anchor is hinged to sit on most roof peaks and flat surfaces up to a 12/12 pitch, comes with its nails, and uses a forged D-ring on powder-coated steel. Paired with a knot-end polysteel lifeline and a double-locking rope grab, the kit is made for daily roofing work.
Kit Specifications
| Kit SKU | RK050V50 (50 ft lifeline) |
|---|---|
| Harness | Combat Plus 50VTB padded full body harness, universal sizing, tongue buckle leg straps, multiple points of adjustability |
| Harness Standard | ANSI/ASSP Z359.11-2014 |
| Roof Anchor | RO01 reusable hinged roof anchor, plate steel, forged D-ring, black powder coated, nails included |
| Anchor Min Breaking Strength | 5,000 lbf (22.2 kN) |
| Anchor Standard | ANSI Z359.18-2017 |
| Anchor Max Roof Pitch | 12/12 |
| Anchor Fasteners | Minimum 22 twisted nails, 3.6 inch length x 0.15 inch diameter (included) |
| Lifeline System | VPL50R3L vertical lifeline: energy-absorbing lanyard, rope grab with shock pack, and lifeline rope |
| Lifeline Rope | 5/8 inch (16 mm) high-tenacity polysteel, three-strand, knot stopper end |
| Lifeline Length | 50 ft |
| Rope Grab | High-grade steel, integrated shock pack, double-locking closing mechanism, max arrest force 900 lbf |
| Lifeline Standard | ANSI Z359.15-2014 |
| Bag | RKBAG large polyester duffel storage bag, shoulder carry |
| User Capacity | 130 to 310 lbs, one worker including tools and clothing |
| Maximum Free Fall | 6 ft (1.8 m) |
| Total Fall Clearance Needed | Approximately 18 ft (5.4 m), verify for your setup |
| Service Temperature | -40°F to +130°F |
| Compliance | ANSI Z359.11-2014 · ANSI Z359.18-2017 · ANSI Z359.15-2014 · OSHA 1926 · OSHA 1910 |
How to Set Up and Use the Kit
The summary below is an overview. Always read and follow the full Frontline Roofer Kit user manual, calculate your fall clearance, and have a Competent or Qualified Person verify the setup before anyone works at height.
- Inspect every component before use: harness webbing and stitching, rope grab and shock pack, lifeline rope, and RO01 anchor. Remove any defective component from service immediately.
- Install the RO01 anchor centered over the roof framing on top of secured sheathing, no less than 6 ft from any exposed roof edge, using at least 22 of the included nails through the center and outer holes. The structure must support 5,000 lbs per worker.
- Attach the lifeline snap hook to the anchor D-ring, then run the rope through the rope grab with the arrow pointing toward the anchor and the stopper knot at the end of the line.
- Don the harness: dorsal (back) D-ring centered between the shoulder blades, chest strap at mid-chest, and leg straps snug. Look for the A marking at the anchor points.
- Connect the rope grab lanyard snap hook to the harness back D-ring, confirm the rope grab locks when pulled sharply, work directly below the anchor to avoid swing falls, and keep a rescue plan ready.
Important Use Notes
The RO01 anchor must be installed over secured roof sheathing, never directly to a rafter or truss, and never on rotten or degraded wood. Keep the maximum free fall to 6 ft and work no more than 30 degrees to either side of the anchor to limit swing fall. After any fall-arrest event, remove the harness, lanyard, rope grab, and lifeline from service and destroy them; the RO01 anchor must also be removed from service.
Code Compliance, United States and Canada
United States
- OSHA 29 CFR 1926: Construction fall protection
- OSHA 29 CFR 1910: General industry fall protection
- ANSI/ASSP Z359.11-2014: Full body harness
- ANSI Z359.18-2017: RO01 anchorage connector
- ANSI Z359.15-2014: Vertical lifeline and rope grab
Canada
- Ontario: Reg. 213/91 fall protection requirements
- British Columbia: OHSR Part 11
- Alberta: OHS Code Part 9
- Quebec: RSST fall protection provisions
- Note: Confirm CSA Z259-series equivalence with a Competent Person for a fully CSA-compliant system in Canadian jurisdictions.
Independent Lab Certification
SATRA Technology Centre, United Kingdom
The RO01 roof anchor in this kit, the load-bearing tie-off point of the system, was independently tested by SATRA Technology Centre. The anchorage connector was installed to a simulated substrate and tested to ANSI Z359.18-2017, and it passed. The 50VTB harness and the vertical lifeline carry their own independent ANSI certifications, so every link in the chain is built and tested to a recognized fall protection standard.
Component standards: Harness to ANSI Z359.11-2014, anchor to ANSI Z359.18-2017, lifeline and rope grab to ANSI Z359.15-2014. All components meet applicable OSHA requirements.
Submittal Documents
| Document | Description | Download |
|---|---|---|
| Frontline RK050V50 Combat Plus Roofer Kit Spec Sheet | Specification sheet for the Frontline RK050V50 Combat Plus Roofer Kit, summarizing the 50VTB harness, RO01 roof anchor, vertical lifeline, and bag components along with capacities, materials, and applicable ANSI standards. | Download the Frontline RK050V50 Combat Plus Roofer Kit Spec Sheet |
| Frontline Combat Roofer Kits Brochure | Manufacturer brochure for the Combat Complete Roofer Kit line, including the RK050V50 component list, the harness, anchor, lifeline, and bag details, and the full feature comparison across the kit options. | Download the Frontline Combat Roofer Kits Brochure |
| Frontline RK050V50 Combat Plus Roofer Kit Test Report | Independent test report for the RK050V50 Combat Plus Roofer Kit anchorage connector, tested by SATRA Technology Centre to ANSI Z359.18-2017 and installed to a simulated substrate. | Download the Frontline RK050V50 Combat Plus Roofer Kit Test Report |
| Frontline Roofer Kit User Manual | Complete user instruction manual for the Frontline Roofer Kits (RK5PTB25, RK5PTB50, RK050V50, RK110V50). Covers limitations, anchorage requirements, connection compatibility, fall clearance charts, donning, inspection, and the RO01 anchor and vertical lifeline instructions. | Download the Frontline Roofer Kit User Manual |
Frequently Asked Questions
What comes in the Frontline RK050V50 Combat Plus Roofer Kit?
The RK050V50 is a complete Personal Fall Arrest System in one bag. It includes the Combat Plus 50VTB padded full-body harness (universal sizing, tongue-buckle leg straps, added shoulder and leg padding), the RO01 reusable roof anchor with nails included, a 50 ft vertical lifeline with an integrated rope grab and shock pack, and a polyester duffel carry bag. The harness and lifeline are safety orange for high visibility, and everything is sized to work together right out of the box.
How is the Combat Plus kit different from the standard Combat kit?
The Combat Plus RK050V50 steps up to the 50VTB padded harness for added comfort during long days, while the standard Frontline RK5PTB Combat Roofer Kit uses the 100VTB harness. Both kits share the same RO01 reusable roof anchor with nails, the same rope grab with shock pack, and the same duffel bag. The RK050V50 ships with a 50 ft vertical lifeline, while the RK5PTB is offered in 25 ft and 50 ft lifeline lengths.
Is the RK050V50 kit OSHA- and ANSI-compliant?
Yes. The kit components comply with OSHA 29 CFR 1926 and 1910, along with the applicable ANSI standards: the harness meets ANSI Z359.11-2014, the RO01 anchor meets ANSI Z359.18-2017, and the vertical lifeline and rope grab meet ANSI Z359.15-2014. The RO01 anchorage connector was independently tested by SATRA Technology Centre to ANSI Z359.18-2017 on a simulated substrate and passed.
What kind of roof can the RO01 anchor be used on?
The RO01 is a hinged, reusable roof anchor that works on most roof peaks and flat surfaces up to a maximum pitch of 12/12. It installs over the secured roof sheathing, centered on the roof framing, using at least 22 of the included twisted nails (3.6-inch length, 0.15-inch diameter). It must be placed no less than 6 ft from an exposed roof edge, and never attached directly to a rafter or truss or to rotten or degraded wood. After removal, the roof penetration may need repair by the installer.
What is the weight capacity of the kit?
The kit is rated for one worker with a total combined weight of 130 to 310 lbs, including tools, clothing, and equipment. All three components share this range, so the system stays matched. If the combined weight of a worker and tools exceeds 310 lbs, the employer must modify the system to provide proper protection, as the standard kit is not rated for that load.
How much fall clearance does the kit need?
Using the rope grab and lifeline system, the total fall clearance is approximately 18 ft, measured from the anchor down to the nearest obstruction below. That figure combines the connector length, the rope grab deceleration distance, the energy absorber deceleration distance, the worker's height, and a safety factor for harness stretch. Always calculate clearance for your specific job and anchor height before working, and work directly below the anchor to limit swing fall.
Can the kit be reused after a fall?
No. After any fall arrest event, the harness, lanyard, rope grab, and lifeline must be removed from service and destroyed immediately, and the RO01 anchor must also be taken out of service. The kit is durable and reusable for repeated installation and inspection during normal work, but once it has arrested an actual fall, it must be replaced. Inspect every component before each use and have a Competent Person formally inspect it at least every 6 months.
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