Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Insulation

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-18-2012, 05:24 PM   #1
Member
 
SuperJETT's Avatar
 
Join Date: Oct 2012
Location: Loo-uh-vul, KY
Posts: 195
Rewards Points: 0
Share |
Default

Attic blown-in planning


Our house has little insulation in the attic spaces. The original attic was finished and has 4" of fiberglass batts. The front section with 2 large rooms and stairway/landing area has "blown in" which is really just a dusting of insulation, maybe 1-2" average.

So, I'm starting to plan ahead. I'll get up there and start air sealing soon. It looks like all the electric for the second floor is run through there so I'm sure there are plenty of holes to seal.

We're in Louisville, KY, zone 4 so I'll shoot for R-38? The ceilings are plaster/lath in the front section and drywall in the finished attic section.

What do I do about the Romex/BX cables that are run up there, just completely cover them?

Also, only one section is tall enough to walk around in. Do I need to build a raised walkway in case I need to work up there? Currently in that section, the only access is a very small opening maybe 12x24, just big enough to get through, so getting wood/etc up will be difficult because it's under the angled side and even an 8' length may not make the turn. Attic stairs may be needed.

I've been reading and reading and reading, and not looking forward to this. Tyvek suit/respirator here I come, again.

SuperJETT is offline   Reply With Quote
Old 12-18-2012, 06:26 PM   #2
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: VA, MD, DC
Posts: 6,221
Rewards Points: 20
Default

Attic blown-in planning


You can blow over the top as long as all the connections are tight and legal.

No need to put a platform up there unless you really want once.

Some strategically placed plywood and 2x4s will help you navigate a bit more easily and without incident.

While R-38 is plenty, just blow it to R-50. Insulation is cheap and especially when you are considering from going to R-38 to R-50.

Windows on Wash is offline   Reply With Quote
Old 12-18-2012, 09:41 PM   #3
Member
 
SuperJETT's Avatar
 
Join Date: Oct 2012
Location: Loo-uh-vul, KY
Posts: 195
Rewards Points: 0
Default

Attic blown-in planning


The electric was the first thing I looked at actually (ex-submariner electrician's mate), a few items need to be dealt with on that just from a cursory look around.

What does everyone do to get a certain depth, marks on the rafters or nail in small pieces of wood at the height required.
SuperJETT is offline   Reply With Quote
Old 12-18-2012, 10:08 PM   #4
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: VA, MD, DC
Posts: 6,221
Rewards Points: 20
Default

Attic blown-in planning





http://www.jrproductsinc.com/shop/pc...Ruler-c156.htm
Windows on Wash is offline   Reply With Quote
Old 12-22-2012, 06:57 PM   #5
Member
 
SuperJETT's Avatar
 
Join Date: Oct 2012
Location: Loo-uh-vul, KY
Posts: 195
Rewards Points: 0
Default

Attic blown-in planning


I just ordered my Great Stuff Pro foam and gun to get rolling on the air sealing of the attic and basement, fun times ahead.
SuperJETT is offline   Reply With Quote
Old 12-22-2012, 10:20 PM   #6
Registered User
 
Join Date: Mar 2009
Posts: 9,968
Rewards Points: 0
Default

Attic blown-in planning


" Do I need to build a raised walkway in case I need to work up there? Currently in that section, the only access is a very small opening maybe 12x24, just big enough to get through, so getting wood/etc up will be difficult because it's under the angled side and even an 8' length may not make the turn. Attic stairs may be needed."----------------

Fix the access to minimum code first (22" x 30"); http://publicecodes.cyberregs.com/ic...9_8_sec007.htm

Check with your local AHJ on the new attic egress requirements, stairs, smoke detectors, egress window, etc; https://docs.google.com/viewer?a=v&q...1txlzU01V4JQIg

Any Romex within 6' of the attic access needs to be protected by wood strapping next to it (good idea anywhere you will be walking later, after insulation)...

How about some FLIR pics of before/after attic insulation?

Gary
__________________
If any ads are present in my answer above, I do not condone/support/use the product or services listed, they are there against my permission.
Gary in WA is offline   Reply With Quote
Old 12-26-2012, 05:36 PM   #7
Member
 
SuperJETT's Avatar
 
Join Date: Oct 2012
Location: Loo-uh-vul, KY
Posts: 195
Rewards Points: 0
Default

Attic blown-in planning


Attic thermal pics:
more thermal imaging - basement and walls

SuperJETT is offline   Reply With Quote
The Following User Says Thank You to SuperJETT For This Useful Post:
Gary in WA (12-26-2012)
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ideas for retrofitting baffles/insulation in vaulted ceiling of built out attic room rachelsue20 Insulation 5 04-28-2012 07:49 PM
attic stairs for attic hvac installation scrolup HVAC 1 04-15-2012 12:53 PM
Blown in attic insulation 18" canadaclub Networking 1 09-20-2010 10:49 AM
Attic Ventilation Question handy man88 Roofing/Siding 10 02-12-2010 10:50 PM
Attic moisture Carstonio Roofing/Siding 14 01-29-2009 11:35 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.