The second glitch aint really a glitch, as you can get onto the roof by climbing onto the logs at the back and just jumping... i dunno if its meant to be like that or if was actually unkowingly glitching...
Got also 1 to add
1.Get in house
2.Go to spot to A site (not on little roof above wood)
3.Stand left side red couch
4.Break the right window .
5.Jump + A + Forward
6.Ur up it!
If ur a little confused [IDK HOW TO MAKE MOVIES ON XBOX SO]