Belzona Repairs and Protects the Roof of Storage Silos

KHIA ID: 7766
Industry: Buildings & Structures (BSTR)
Application: RPA-Roof Problem Areas (RPA)
Substrate: Asphalt surface
Customer Location: France
Application Date: September 2018
Products:

Belzona 3911 (PSC Surface Conditioner)

Belzona 3111 (Flexible Membrane)

Belzona 9311 (reinforcement net)


Problem: The water infiltration through the asphalt sheets on storage silos was causing a lot of corrosion and holes on the metallic roof underneath. This caused the degradation of the stored products (pellets for animal feed).
Photograph Descriptions

Previous asphalt coating used for roof protection.

Belzona 3111 used on the previous coating welds.

Final application.

Overview of the silos.

Application Situation
Asphalt coated roofs of four storage silos. 
Application Method
The surface was pressure washed and thoroughly inspected to detect the particularly affected areas. Belzona 3911 was first applied on the whole surface. Then, two coats of Belzona 3111 were used with a reinforcement sheet(Belzona 9311) in accordance with a modified version of Belzona Know-How System Leaflet RPA-10.
Belzona Facts
The customer had tried to use an asphalt coating several times as a sealing system but it was not efficient enough, the application caused logistics problems and would have taken longer time to complete. Belzona solution was easy to implement and durable.