HeyBub wrote:
rmorton wrote:
We moved into a new to us house that is about 6 years old and the
garage has been an oven since the summer is here. We into the garage
attic and discovered that there is no insulation. Oh well something
else to get accomplished. While I was up poking around I did notice
that while the roof has ridge vents the nice ventilated soffit is
totally closed off. Closer inspection and it appears that the soffits
were created by building a ladder out of 2X4's and nailing the ladder
to the side of the trusses. Can the trusses be drilled to allow air
passage? If they can be drilled, how big of a hole and what type of
spacing? Sure don't want to destroy the integrity of the truss
system but can see no other way to get air flow through the soffit
and out the ridge vents. Thanks for any help and insight on how best
to fix this. Yes, the insulation will go in as soon as I can solve
the ventilation problem.

It would take a LOT of holes to allow sufficient air volume. Is there no
other way to the outside? A gable vent? A vent in the ceiling?

What if you were imprisoned in the attic, how would you get out?


Thanks for the reply. I realized it would take a number of holes based
on diameter drilled. That was the reason for the question of how large
of a hole can be drilled in the top stringer of a truss without
destroying the strength. There is one end that a gable vent could be
inserted in but was always told not to mix ridge vents and gable or roof
vents as the air flow only effects a small portion of the attic.