Hello, we are having a home built by a very knowledgable carpenter with plans designed by a quality architecht. The home is using a rafter-type roof system and the construction crew decided to give me some more headroom on the top floor by having the collar ties used for the the height of the cieling (12 feet from the floor). The front side of the roof is made up of 2x10's and it's a 10/12 pitch. The back side of the roof is 4.5/12 pitch and is using 2x12 wood. The question is: how do I know that the collar ties are (a) in the right spot, (b) are strong enough (they are 2x6's heavily nailed).
We live on top of a mountain that gets a good amount of snow (nothing major but 1 foot snowfalls are common).
Since they have not put up any drywall yet this might be a good time for me to ask them to add some extra lumber to make sure the roofing is strong enough to sustain a decent snow load. Any thoughts on this? Perhaps I'm just overly concerned over something that is minor.