Next potential gig: Pflugerville house
- Donny Goff
- 2014-09-30 @ 15:32
I inspected this house this past Friday. It's a 1-story in a
subdivision, I'd say roughly 2400 square feet. All houses are
different, and this one is certainly no exception. Here are my notes
1) The attic is half ventilated. By that, I mean it has good
outlet ventilation (vents in the roof), but almost no intakes. The
soffits around the outside have no holes - as in zero - and the only
place to let fresh air IN to the attic is an 18" gable vent facing the
driveway. Those of you who've read my blog :) know that having intakes
and outflows that are out of balance yields terrible airflow, and that
is definitely the case here. The airflow throughput in this case must
be limited by the 18" gable vent, and there is no way that is enough air
to feed the half dozen outlet vents. Recommendation on this below.
2) The attic is well insulated. Fiberglass insulation averaging
perhaps close to a foot - like most attics it was uneven but that's my
best guess... and that's enough. No need to do any more, unless we find
that it's thinner than I first thought.
3) The attic is extremely tall at the peak - maybe 15', and like
most attics, full of diagonal supports. The only way we could do full
radiant barrier here is to build scaffolding inside the attic, to reach
the higher areas, and honestly, that's going to take so much work
(moving materials into the attic, staging the construction, finding
solid supports for our weight, THEN building) I can't recommend it.
I'll put some options on this below.
4) The house is open to the sun for more than half the day. There is
no significant overhanging shade, and the back yard (which is west of
the house) is bare. They must BAKE through the summer.
So there's what we've got. I'm going to make recommendations and of
course it's open to discussion!
1) Cut some soffit vents for them. I don't think this is trivial,
but I don't think it's rocket science. We should be able to work out a
way to cut and screen vents around their soffits that will help feed
cool air through the attic to the nice outlet vents they've already
got. This being pretty much a first for me, I'd someone more engaged in
woodcraft to take a look at it and recommend tactics. Andy, or perhaps,
someone could ask Ruth?
2) Leave the insulation as is.
3) Install a partial radiant barrier - all the parts we can easily
reach -- which might be about half way up. Consider whether we can make
a little tent-type ceiling out of the barrier draped from one support to
another, to at least help cover the large central area that's too tall
to staple to the rafters. Any barrier we put up should help, even if
coverage is incomplete. Note that this will be a sticky attic to work
with in terms of random supports everywhere, as best I could tell.
4) Recommend either a good oak tree in the back yard, or solar
panels to either block or take advantage of the severe western exposure
of the house. Clayton may want to make a proposal on behalf of GEE to
the homeowner (this is a rental house).
Ideas? Thoughts? I'd like to get an estimate out sooner rather than later!