Retractable Roofs In Nfl

The roof remains open unless precipitation or lightning is within the vicinity of the stadium the temperature drops below 40 f 4 c or wind gusts are greater than 40 miles per hour 64 km h in which case the roof operators will close the roof.

Retractable roofs in nfl.

Up to 90 minutes prior to kickoff the home team must notify the referee or the designated. In general if a game begins with the roof open and weather conditions become less favorable the home. Why more nfl stadiums have protective roofs in 2014 live science looked into why so many teams in the northern u s. In all there have been 216 regular season games in stadiums that currently have retractable roofs where the.

Before a recent texans. They found that there are 11 open air stadiums in the north with 12 in the south. Changing the roof during the game. Yet the nfl teams with retractable roofs the houston texans arizona cardinals indianapolis colts and dallas cowboys have played 66 percent of their games in their current stadiums with the.

Gameplay with retractable roofs. These rules vary between the nfl and mlb as well as from stadium to stadium. Nfl retractable roof policies pregame procedure. The chart adds figures from the other three retractable roof stadiums in the nfl.

There has also been an uptick of domed stadiums being built. In north american major sports leagues specific rules exist governing the movement of retractable roofs before and during gameplay. 10 fixed or retractable roof stadiums are in use within the nfl. When considering the fact that these structures are being opened less and less frequently as evidenced by the above section one.

For retractable roofs the home team determines if the roof is to be opened or closed 90 minutes before kickoff. The raiders stadium will also have a retractable roof a feature becoming more common in today s nfl. The construction costs for the nfl s first retractable roof stadium included nearly 450 million public dollars to be generated through tourists stadium users and tenants. Retractable roofs add significant expenses according to mark waggoner of the houston headquartered walter p.

Moore engineering firm the firm who designed the roofs of all four of the nfl s current retractable stadiums a retractable roofed edifice costs 100 to 150 million more than an open air venue and 25 to 40 million more than a domed football facility. Inside 90 minutes to kickoff and during the game the decision on the roof may not be.