I live in an 85-year townhouse in Washington, DC with an
underinsulated attic. I am considering cellulose insulation (DIY) as
a cost-effective fix.
I've got a flat roof with a narrow attic -- 2.5 ft above the joists at
the front of the house, down to 1.5 ft at the back. I went up today
to explore and discovered two massive beams parallel to the joists,
effectively dividing the house into thirds, front to back. I should
be able to get around the front beam. But there is no way around the
back one, to the back third of the attic. To my horror, this back
third is COMPLETELY uninsulated (and has been for 85 years!).
* Has anyone tried cellulose insulation in such a tight space?
* How far does the blower shoot the stuff and with how much control?
The problematic beam is about 15 ft from the back of the house. I've
never done this before, but figure, extending the blower over the beam
as far as I can, I could get the insulation about 5 or 7 ft past it,
leaving the back 15-20% of the attic uninsulated. Or am I over- or
under-estimating the ability to shoot this stuff further back in
* Is this even worth my effort and money if I don't get full
coverage? I figure I'll notice an improvement, even if it's not
* Any ideas on how to get at this back third of the house? Here are
some thoughts I've had:
1) Shoot massive amounts of the crap indiscriminately in the back in
hopes that at least some settles towards the back of the house.
2) Try to use some sort of stick to push piles of it towards the back.
3) Put a hole through a ceiling at the back of the house large enough
to crawl up.
4) Disconnect the HVAC duct (6 ft from the back of the house) and just
blast away upwards, knowing I still won't get full coverage.
Any thoughts or reaction would be most appreciated. Summer's here...