Dry rot species of fungi cause brown rot decay, preferentially removing cellulose and hemicellulose from the timber leaving a brittle matrix of modified lignin. The term "dry rot" is somewhat misleading, as both species of fungi "Serpula lacrymans" and "Meruliporia incrassata" require an elevated moisture content to initiate an attack on timber (28–30%). Once established, the fungi can remain active in timber with a moisture content of more than 20%. At relative humidities below 86 percent, growth of "Serpula lacrymans" is inhibited, but it can stay dormant at relative humidities down to 76 percent. These relative humidities correspond to equilibrium moisture contents
The Amity Affliction of the year. It was announced by Joel Birch on 24 March 2013 that Dan Brown was the new guitarist,<ref name="instagram.com/joeldtd">, http://instagram.com/p/XOQl3mQs5q/</ref> although he did not appear on the "Open Letter" music video. In 2013 The Amity Affliction was part of Warped Tour in the United States with Chad Hasty (Glass Cloud) on drums and percussion due to Ryan Burt severely damaging his cornea during a set in Portland, Oregon. Later in the tour vocalist Joel Birch was also hospitalized due to unspecified illness, forcing the band to cancel their set in Pittsburgh. The band's next show in Cleveland was