I've bought a HD projector and the room I'm installing it in has been extended out the back with a small 2m extension. Because of this there is an "arch" where the load bearing beam sits a little below the ceiling.
I'm looking to bolt my projector ceiling mount into this. Is it safe to drill 4 small holes through the bottom of the i-beam? I assume I will have to because I wouldn't have though there's enough plaster to support the weight of the projector and mount.
Amps: Tag McLaren AV32R-DP, 3x Musical Fidelity P140
Speakers: B&W 604, 601, LCR600, ASW675 Series 3
Cables: Nordost Super Flatline MKIII
Video: Optoma HD25-LV, 140" Black Widow screen
Sources: Custom built XBMC/Plex HTPC, PS4, Xbox 360, FreeSat HD & Saorview HD