|Areas Repaired||Planter walls, floor and corner joints|
|Repair Types||Concrete crack injection, surface restoration, application of fibreglass coating to planter walls|
|Issues||Cracked walls, bad insulation layers, standing water - bad drainage|
The repair was done on the roof of an apartment building in Toronto.
The scope included repair and waterproofing of:
- Roof planters
- Roof slab
- Drain basins
- Various concrete joints (cold joints)
… were cleaned and treated with Polyforce Plus for crack and structural repair. A fiberglass sheet soaked with Polyforce Plus was applied as a liner in the planter to provide a monolithic membrane. The surface was finished in black colour.
After removing the existing leaking membrane and surface cleaning, the concrete was treated with an application of Polyforce Plus. The application provides waterproofing monolithic membrane as well as a structural repair.
Caulking of concrete cold joints was deteriorated and removed. Polyflex was injected into joints for long lasting waterproofing.
According to third party testing, the repaired surfaces are rated to:
- 25 years of useful life
- 0% water permeation
- Polyforce Plus is rated to expand and contract with concrete
- The entire surface and volume of the slab is "monolithic"
- Compressive strength of 85 MPa
- Adhesive strength of 1.85 MPa (original concrete has only 1.2 MPa of a tensile strength, so the bond is stronger than the concrete itself)
- Repair is 60% cost of a traditional repair