Insulating old construction - electrical issues

Post in 'The Hearth Room - Wood Stoves and Fireplaces' started by saichele, Jun 25, 2006.

Thread Status:
Not open for further replies.
  1. saichele

    saichele
    Expand Collapse
    Minister of Fire

    Joined:
    Nov 18, 2005
    Messages:
    542
    Likes Received:
    6
    We're starting renovation of a bedroom that was finished in plywood (don't ask) and 1) i definitely have the opportunity to insulate that room, and 2) I may be able to drill a couple holes in the wall footer in each bay to blow insulation into the walls downstairs.

    First, will drilling holes inthe footer adversely affect the structure? I wouldn't think so, but thought I'd ask.

    Second, I have read of people having fire problems when blowing cellulose into older houses because of the old wiring. All the original wiring seems to be the cloth wrapped wire inside flexible betal conduit (conduit acts as the ground). Seems like this should be pretty tough stuff, but anything I should be paying particular attention to?

    Thanks.
    Steve
     
    Collapse Signature Expand Signature

    Helpful Sponsor Ads!





  2. elkimmeg

    elkimmeg
    Expand Collapse
    Guest

    Drilling and notching by code: 25% the thickness nothchs, Drilling 33% Norminal 2/4 3.5" 1/3 about 1/1/8" hole

    Bx ( metal clad wire) should not be an issue


    Plywood walls not panneling?
     
  3. njtomatoguy

    njtomatoguy
    Expand Collapse
    Feeling the Heat

    Joined:
    Jun 20, 2006
    Messages:
    458
    Likes Received:
    11
    Loc:
    Maple Shade, NJ
    I didn't know this but just passing the info forward-when blowing insulation, go from the top- I have high moldings, and was planning to go from the bottom up, but the guy renting me the machine told me it wasn't powerful enough... Back to square 1. Has anyone had any experience with that expanding foam? I just really dont want to take down all the drywall, ..
     
    Collapse Signature Expand Signature
  4. saichele

    saichele
    Expand Collapse
    Minister of Fire

    Joined:
    Nov 18, 2005
    Messages:
    542
    Likes Received:
    6
    Thanks, but not an issue for us. An upstairs room is shredded, but I have access to footer/header of the first floor room. If I can punch a couple holes per bay, I can blow insualtion down in and give the air a place to get out...

    As we do other rooms we'll probably do similar and just pop the crown molding, blow cellulose, and replace the crown.

    Steve
     
    Collapse Signature Expand Signature
Thread Status:
Not open for further replies.

Share This Page