slide out floor

I opened my slide outs after winter and I noticed light coming from the bedroom floor.Upon further inspection I went outside looked at the slideout and noticed the screws were loose. I tightened them up and it was fine.The overall problem is the trim piece on the bottom of the slide out fits flush in the front ,but as it goes toward the camper there is a 1/2 inch gap there so you can see the wood part of the floor.Is this just poor workmanship or is there a problem ?I tend to think its been like that because the trim piece isn't bent or anything .I wish I could send a picture but unfortunately I don't have the computer knowledge to upload it . thanx