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We calculate the Bieri-Neumann-Strebel-Renz invariant $\Sigma^1(G)$ for evenArtin groups $G$ with underlying graph $\Gamma$ such that if there is a closedreduced path in $\Gamma$ with all labels bigger than 2 then the length of suchpath is always odd. We show that $\Sigma^1(G)^c$ is a rationally definedspherical polyhedron.

On the Bieri-Neumann-Strebel-Renz $\Sigma^1$-invariant of even Artin groups