Here is some very useful information for any home that still has a double cylinder lock.
As of July 1, 2013, the State of Washington adopted the International Fire Code (Sections R311.4.4) which makes the use of double cylinder locks in areas of egress illegal to install. The code states: All egress doors shall be readily open-able from the side from which egress is to be made without the use of a key or special knowledge or effort. Also, almost all insurance carriers will not accept a risk that contains these locks as it doesn’t allow proper egress from a building.
A HUGE thanks to David the Locksmith for helping track down all of this information. If you need your locks changed, he has great rates.
Check out his Facebook page here!
-Kit and the MLM team