I was in deep thoughts on what materials would I use for the ceiling of our newly renovated apartment. I had the whole roof replaced because the wooden components of the roof were severely attacked by termites. This is the reason why I decided to replace the entire roof with steel trusses. This way, I could avoid frequent repairs. Now that the steel trusses were completely installed, I am thinking of getting rid of woods for the ceiling frames. Finally, I resorted to having steel frames, as well and I have chosen to use Flex boards rather than the ordinary plywood. I think I have made the right decision. The expenses incurred is almost the same but at least I can have the assurance that I won't be spending more on the repairs or maintenance.