how are the thermal tiles "glued" onto the shuttle

Factual Questions
1

that’s about all…

i want to know what fixes the black thermal tiles to the bottom of the space shuttle.

thanks

2

Everything you ever wanted to know about Space Shuttle tiles:

[quote]
Note that the tiles cannot withstand airframe load deformation; therefore, stress isolation is necessary between the tiles and the orbiter structure. This isolation is provided by a strain isolation pad. SIPs isolate the tiles from the orbiter’s structural deflections, expansions and acoustic excitation, thereby preventing stress failure in the tiles. The SIPs are thermal isolators made of Nomex felt material supplied in thicknesses of 0.090, 0.115 or 0.160 inch. SIPs are bonded to the tiles, and the SIP and tile assembly is bonded to the orbiter structure by an RTV process. From here. RTV is a silicone rubber compund, similar to the sort used to caulk bathtubs. RTV stands for Room Temperature Vulcanizing, and is a group of adhesives/sealants with good mechanical and thermal properties for a great number of applications.