Case 2

Introduction

Type of Building: Commercial Building

The performance of sealants is important in curtain wall systems as sealants hold joints together and the jointing often determines the structural integrity of the envelope. Since joints need to be flexible to accommodate the movement of the curtain wall and the building, the sealant used must suit the degree of movement without any loss in performance.

In this case, staining can be attributed to the sealants material properties.