how is trex attached to framing

If you are asking about what fasters can be used with Trex Transcend, this is a list of acceptable fasteners: Trex Hideaway Universal Hidden Fastener Trex Hideaway Connector Clip FastenMaster TrapEase 3 Ultimate Composite Deck Screw (6 point drive) Simpson Strong Tie Deck Drive DCU Composite Screw (Collated and Handdrive) Dexxter Composite Screw 6 Lobe Drive Only (6 point drive) Splitstop Titan III Composite Screw Starborn Cap-Tor xd-Epoxy Coated Starborn Cap-Tor xd-Headcote Stainless (available collated for Muro CH7390 Driver***) (available in 2"-approved for sleeper and roof top applications only) Starborn Pro Plug System for PVC and Composite (Epoxy Coated & Stainless) (2" are approved for sleeper and roof top applications only) Screw Products C-Deck Exterior Star Drive Composite Deck Screw Phillips II Plus Pozisquare Cortex Concealed Fasteners** Muro T-Screw Torx Stainless Steel Screw - Collated (TX0212SFD or M-TX0300SEP) Starborn Deckfast Fascia System - Epoxy Coated* Starboard Deckfast Fascia System - Headcote Stainless SplitStop Fascia Screws* (uses SplitStop Fascia Bit) *Fascia system screws listed above can only be used with composite fascia profiles, cannot be used with standard thickness decking boards used as fascia.  Use Stainless Steel screws near water applications. **Not for use with sleeper systems.  Refer to FastenMaster literature for more information. ***Collated Cap-Tor xd products cannot be used with Trex Escapes Thanks, Debbie, Trex Customer Experience Team