After new siding was installed on the house, there is a 1-1/2"-thick wooden spacer between the electrical box for an outside light and the location of the light. In my prior experience, the electrical box was always placed snugly next the fixture. How does one meet electrical code when there is a wooden spacer?
The photo shows the Hardie board siding (yellow) with a 1.5-inch-thick wooden block (white) with a roughly 3.75-inch-diameter cylindrical hole. At the top of the wooden block is metal flashing (dark gray). Inside the hole, you can see some Tyvek housewrap (white with blue writing) and the electrical box (gray). The lighting fixture is supposed to go on the outside of the wooden block.
Is it OK, under electrical code, to just stretch the wires from the electrical box to the fixture and install the light fixture on the outside surface of the wooden block?
The house is in northern California, USA, in the San Francisco Bay area.