Retrofit Anchor Installations
Bringing existing buildings up to current fall protection standards — without penetrating the roof membrane.
Most existing rooftops were not designed with anchorages in mind. We retrofit buildings with engineered roof anchors and lifeline systems that bring the roof into compliance while protecting the integrity of the existing roof assembly.
Anchorage options engineered for existing structures.
We retrofit buildings with the Thaler Metal Industries anchor line — fastening methods matched to the structure already in place, so anchors are installed without compromising the roof assembly or the membrane warranty.
Application: Concrete Roof Decks
| Anchor Type | Roof Anchor |
| Fastening | Thru-Bolt w/ Underdeck Plate |
| Application | Concrete deck |
| Anchor Type | Roof Anchor |
| Fastening | Adhesive Bolt |
| Application | Concrete deck |
| Anchor Type | Roof Anchor |
| Fastening | Pre-Cast Core Bolt |
| Application | Pre-cast concrete plank |
Application: Steel Structures
| Anchor Type | Roof Anchor |
| Fastening | Bolt Around Beam |
| Application | Steel beam |
| Anchor Type | Roof Anchor |
| Fastening | Weldable |
| Application | Steel deck |
| Anchor Type | Roof Anchor |
| Fastening | Bolt Around OWSJ |
| Application | Open web steel joist |
Application: Wall & Terrace Anchors
| Anchor Type | Wall Anchor |
| Fastening | Thru-Bolt w/ Back Plate |
| Application | Concrete wall |
| Anchor Type | Wall Anchor |
| Fastening | Adhesive Bolt |
| Application | Concrete wall |
| Anchor Type | Wall Anchor |
| Fastening | Pier Bolt |
| Application | Concrete pier / column |
| Anchor Type | Terrace Anchor |
| Fastening | Adhesive Bolt, recessed |
| Application | Terrace deck |
How we approach retrofits
Rooftop Survey
We assess parapets, structural elements, and membrane condition to choose the right anchor type.
Engineered Roof Anchors
Roof anchors are selected and located to suit the existing structure and membrane.
Permanent Load Path
Where structurally viable, anchors provide a permanent, inspectable load path.
Load Test & Certify
Every retrofit anchor is proof-tested and certified to 5,000 lbs before service.
Retrofit systems are engineered to the CSA Z259 series and O. Reg. 213/91, with anchor selection based on the existing structure and a load path verified by testing.
- CSA Z259.12
- O. Reg. 213/91
- Non-penetrating options
- 5,000 LBS certified
- Membrane-safe design