Covering of Blessed Sacrament during Mass

Covering of Blessed Sacrament during Mass
Question from on 07-12-2007:
I've noticed on EWTN's Daily Mass with the Friars that, when Mass is going on, there's a cover over the Blessed Sacrament. It's removed when Mass ends. What's the purpose of this cover?
Answer by Colin B. Donovan, STL on 07-31-2007:
The Church forbids exposition during the Mass, so exposition is paused before Mass and resumed after Mass. This veil is called an umbraculum, and is more known in monasteries than parishes.

EWTN's chapel was the monastic chapel of Mother Angelica's community before they moved to Hanceville. The Friars and the Network employees continue the exposition begun by the nuns during the day, except during Mass, hence the veil.