Shelf liner on floor

[reppy1]

Hello can anyone tell me how i can stop crickets and roaches getting under the shelf liner on the floor of our vivarium plz

 

[Sadie]

Hello can anyone tell me how i can stop crickets and roaches getting under the shelf liner on the floor of our vivarium plz

Did you cut the liner to the tank? It should be cut to fit the size of the tank eliminating the lips along the sides