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Message
Question for OT Construction Guys
Posted on 4/26/16 at 5:42 pm
Posted on 4/26/16 at 5:42 pm
I am replacing the A/c in my house, which was built in the 1950's, and not my forever home. I am going to have to add insulation in the attic and am thinking about redoing the ductwork also. This might be a dumb question so don't crucify me if it is. Should I remove the old insulation from the 50's and come back with a spray foam throughout the whole attic or just go back with fiberglass on top of the old insulation? Also, thoughts on ridge vents?
For your troubles!
For your troubles!
This post was edited on 4/26/16 at 5:43 pm
8
Posted on 4/26/16 at 5:43 pm to monroe71201
quote:
Should I remove the old insulation from the 50's
Yes
quote:
spray foam throughout the whole attic
Maybe?
quote:
fiberglass on top of the old insulation
No
Posted on 4/26/16 at 5:48 pm to monroe71201
just install window units
Posted on 4/26/16 at 5:51 pm to monroe71201
Personally I would remove old insulation and go back with ridge vents and spray foam. Then have whoever changes out the AC also change out the ducts. This will be pricey but pay off in the long run.
Source: I sometimes do AC work.
Source: I sometimes do AC work.
Posted on 4/26/16 at 6:25 pm to monroe71201
Unless the insulation is infested with animal waste, there's really no point in removing it. It's loose fill I'm assuming? I would honestly just blow more insulation on top of the old.
Posted on 4/26/16 at 7:03 pm to monroe71201
quote:
which was built in the 1950's
Have the original windows been updated to more efficient ones? If you got shitty old windows additional attic insulation may not help much.
Posted on 4/26/16 at 7:14 pm to monroe71201
If it's not your forever home don't bother with spray foam.
If it's loose fill insulation just fluff up the old stuff and add new on top. If it's batts then remove and replace.
If you are doing a new HVAC system do replace the ductwork.
If it's loose fill insulation just fluff up the old stuff and add new on top. If it's batts then remove and replace.
If you are doing a new HVAC system do replace the ductwork.
Posted on 4/26/16 at 8:50 pm to monroe71201
quote:
not my forever home
Don't spray foam. leave original and add new to top.
I don't know why anyone who isn't getting paid to do it would remove the old insulation. Leave it, add more if needed and get on with your life saving up for the forever house.
Posted on 4/26/16 at 9:06 pm to monroe71201
The gif derailed me well done
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