Standard Guide for Evaluating Failure of Structural Sealant Glazing

Importancia y uso:

5.1 This guide suggests a simple means of evaluating the extent of any failure of a structural sealant in an installed structural sealant glazing system.

5.2 A qualified authority should specify the criteria described in Sections 8 and 9 and should interpret the results and judge their significance for the structural sealant glazing system.

5.3 The evaluation program measures deflection of loaded lites and does not measure directly any structural sealant failure. Consequently, the qualified authority interpreting the data should also evaluate the source of any increased deflection that is measured. Increased deflection may be due to structural sealant adhesive or cohesive failure, but may also be due to a decrease in sealant modulus, a change in sealant joint dimensions, or other nonfailure mechanisms. Selective destructive sampling of areas with increased deflections can assist in this evaluation.

Subcomité:

C24.10

Referida por:

C1394-20, C1487-19R24, C1401-23

Volúmen:

04.07

Número ICS:

91.100.50 (Binders. Sealing materials)

Palabras clave:

adhesive failure; cohesive failure; curtain wall; durability; glass; glazing; in-service evaluation; strength; structural sealant glazing; substrate;