One of the first issues an artist must decide about framing is whether to put their silk painting behind a protective surface or not. This is not a simple issue and both have advantages and disadvantages.
Under Glass
Similar to how a watercolor painting would be framed, the silk painting is gently stretched around white acid free mat board for support. This is placed under conservation glass to block UV light. The glass is held separate from the painting with spacers to allow air circulation and prevent moisture from being trapped in the fabric.
Framing this way has the advantage that the silk surface is reasonably protected from dirt and light damage. It has the disadvantage that the framed painting is heavy, fragile, and the silk painting will lose some of its textile nature.
Not Under Glass
Silk paintings displayed not under glass are often presented as a banner framed with a fabric frame or tensioned in an open frame.
Framing this way has the advantage that it will generally be light and can be used to present larger paintings. The silk painting retains its textile nature. The paintings will vibrate or breathe as one walks by. The main disadvantage is that there is no glass that protects it from dirt and light. It is sometimes difficult to make silk paintings framed as banners hang straight.