Hey, we do a lot of these. Couple different methods depending on what state the building is in. often these are planned out during construction, for a larger blade that's going to be a must. Gets more complicated for corner mounted
signs.
Option 1 - we supply square tubes welded to backer plates that get installed inside of the building protruding from the wall. power is threaded through one of these tubes and we leave plenty of extra wiring coiled up for us to install onto layer. Our final blade will use larger square tubing that sheaths over those tubes and we will bolt through both layers. Still requires blocking and a solid connection to make sure the wall can support the blade.
- upsides - Construction team can close up the wall prior to us installing the final blade. Faster install process.
- downsides - Requires coordination with construction - the placement of those tubes placed through the wall has to be perfect.
Option 2 - the brackets on our blades end with a welded mounting plate, that mounting plate through-bolted into prepared blocking into the wall. That blocking is either double stacked 2x4s mounted to the studs or a bent steal plate mounted to the studs
- upsides - No bare tubes sticking out of the wall waiting for a
sign. power can be pulled to the location later. & i believe this is less expensive *but i do not handle pricing*
- downsides - we have to count on construction to actually do their part of providing the blocking at least half of our jobs this is not done when we get there. We need access to the back side of the wall
Option 3 - we mount to cinderblock in lu of blocking. if we can mount through to block or concrete then we can skip the blocking but we do have to watch out for posttentioned slabs.
- upsides - very little coordination, perfect for owners that somehow didn't learn communication skills
- downsides - limited locations, stairwells are typically block, but most of the main construction (in our area) is going to be wood framed, even if there is brick so it's useless for holding heavy
signs.
Most places require you to spell out the mounting method when you go to permit this type of
sign and many states require signed engineering drawings. We plan everything out in house and contract out the engineering
sign off/edits before permitting.
Sometimes we will cover the posts, but they are always there.
