Detecting a part's rotation?

I'm trying to make life easy for myself (believe it or not) and make a script that detects if a part is vertical or horizontal. But it does literally nothing.

local model2 = workspace.FenceR:GetChildren()
local storageVertical = Instance.new("Folder",workspace.FenceR)
for i,v in pairs(model2) do
    if v.Name ~= "Folder" then
        if v.Rotation == Vector3.new(180, -0, -180) then
            v.Name = "Vertical"
            v.Parent = storageVertical
        end
    end
end

I've added a print to it, and it can't detect it. It will print.

local model2 = workspace.FenceR:GetChildren()
local storageVertical = Instance.new("Folder",workspace.FenceR)
for i,v in pairs(model2) do
    if v.Name ~= "Folder" then
        if v.Rotation == Vector3.new(180, -0, -180) then
            v.Name = "Vertical"
            v.Parent = storageVertical
        else
            print("Breh i ain't workin")
        end
    end
end