I am in the process of remoldeling my kitchen myself. It is a small addition
on the back of my house approx. 14" x 8". I want to open up the ceiling and
put in a skylight to make it feel larger and brighter. Is there any
information on the web that can help me determine the proper roof support
for this undertaking?
you'll probably find that the problem is not supporting the roof (at least
not directly) but in keeping the walls from collapsing. The ceiling joists
in "normal" stick construction tie the opposite walls together as they
attempt to spread apart as the roof weight tries to flatten the roof,
spreading the angle of the peak. I've seen at least one low-budget
conversion such as you describe where they replaced the ceiling joists with
a number of relatively thin steel rods placed on approximately 3-foot
centers tying the opposite top plates together. This left the appearance of
a fully open cathedral ceiling without requiring a lot of structural
changes. Personally, I wouldn't want to attempt a modification with this
many structural implications without having a good engineer on the job.
This post made me remember my Grandfather's house. The ceiling in the
living room was vaulted and two very long cast iron rods spanned the room.
There are pictures of every grandkid hanging from these rods.
It really was a nice architectural part of the room.
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