Calcasieu Parish requires permits before any construction or remodeling project, and the city's Permit Center, 337-491-1294, handles permit questions for building work in Lake Charles. Whether your foam job needs one depends on the work and your address, so we check with the office that covers it before we start. If it needs a permit, we apply for it and keep you posted.
In hurricane areas, adding vents along the soffits under the roof edge may not be a good idea, so the insulation sometimes moves up to the underside of the roof deck. Spray foam does well there because it seals air around complicated roof framing. Temperature and humidity affect how the foam cures, so I'll talk through with you when it makes sense to spray.
We're based in Lake Charles and work in the cities around it, including Sulphur and Moss Bluff. Most calls here are about upstairs rooms that won't cool down, rooms over the garage and attics with ductwork running through them, and closed-cell foam comes up most when the walls are already open.