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Spray Foam insulation
Posted on 6/30/23 at 2:11 pm
Posted on 6/30/23 at 2:11 pm
I'm convinced that I need to get spray foam insulation and have a conditioned attic.
Sunlight Contractors seem to be the biggest dog in town. Have any of you guys transitioned to a conditioned attic? Have you used Sunlight?
One of his competitors said that we would have to be gone from my house for 3 days. The owner of Sunlight said this guy doesnt know what he's talking about. There is too much conflicting info.
Sunlight Contractors seem to be the biggest dog in town. Have any of you guys transitioned to a conditioned attic? Have you used Sunlight?
One of his competitors said that we would have to be gone from my house for 3 days. The owner of Sunlight said this guy doesnt know what he's talking about. There is too much conflicting info.
5
Posted on 6/30/23 at 2:23 pm to White Raj
Bump...I would like to know more info as well.
Posted on 6/30/23 at 3:00 pm to White Raj
You need to talk to someone about how this will affect your home. My home has the conditioned attic and it is great, but my house was built for this. The AC contractor calculated this into properly sizing my AC unit for this. Fresh air introduction has to be calculated. You will probably need to remove your attic floor insulation and seal soffits. It's not as simple as spray the roof deck and call it a day.I would recommend a conditioned attic to anyone building a home, but you will need to make sure it is the right fit for the systems in your home as constructed. There are energy consultants who can advise you better than someone trying to sell you insulation without considering the whole of your building environment .
Posted on 6/30/23 at 3:02 pm to lgtiger
PS.
I watched them spray when building my home and I can't see why you would need to leave. I had them do my garage which also is conditioned so no heat bank is next to my home or above my attic
I watched them spray when building my home and I can't see why you would need to leave. I had them do my garage which also is conditioned so no heat bank is next to my home or above my attic
This post was edited on 6/30/23 at 3:04 pm
Posted on 6/30/23 at 3:26 pm to lgtiger
quote:
lgtiger
Very good post and right on target.
For a new build it’s almost a no brainer, but for for a retro fit it may or may not be. Paul LaGrange who hosts the Home Improvement show WWL radio in New Orleans, and has company that does spray foam states he talks many potential clients out of spray foaming their attics b/c they are incapable of completely encapsulating the attic and other factors. As you stated It’s much more than just spraying foam.
Sealing one’s attic from air infiltration from the conditioned area below and adding additional insulation, and other air sealing activities in the conditioned living area can potentially provide equal comfort at a much cheaper price point.
Posted on 6/30/23 at 3:38 pm to White Raj
Check your SHINGLE ROOFS 1st. Spray foam with certain types of SHINGLE ROOFS will not let the roof breath. I know this sounds crazy but check in to it.
Posted on 6/30/23 at 3:49 pm to CrawDude
I have used LaGrange Consulting ( Paul's company ) for other things, companies like this are who would be much more informed than any advice I could offer
Posted on 6/30/23 at 4:09 pm to lgtiger
quote:
lgtiger
Spot on.
I’ve heard horror stories of spraying homes after the fact. The foam puts off an odor while it cures. Some have had horrible issues
Posted on 6/30/23 at 8:26 pm to White Raj
My house was built in 1961 and I had the roof deck spray foamed in 2014 and it along with a whole house dehumidifier have been the best investment I’ve ever made. We never had to leave. I even helped the dude pull the old batten out when he was done to save some cost on his labor.
Posted on 7/1/23 at 8:48 am to White Raj
I’ve used these guys twice and would do it again. Ira, the owner, is a standup guy. My electricity bill on a 3K+ house is around $150/month right now in this heat and closer to $100 in cooler months. Neighbors pay $400+. It’s not cheap but worthwhile, imo, if you plan on staying in your house for several years. We didn’t have to leave the house either time. What some other guys have said is correct - you’ll need to remove some insulation between your attic and living space to make this effective and prevent issues. Sunlight did all the sealing too - it’s part of their quote to encapsulate the space.
This post was edited on 7/1/23 at 8:51 am
Posted on 7/1/23 at 9:24 am to lgtiger
Posted on 7/1/23 at 10:03 am to lgtiger
Does anyone know of a consulting company like LaGrange that services northwest Louisiana? I have been trying to find someone to consult with for several months and can’t find one locally. I will call Lagrange next week but it appears from their site that they only service south la. Thanks for any input
Posted on 7/1/23 at 10:24 am to KRS
quote:
Spray foam with certain types of SHINGLE ROOFS will not let the roof breath.
Not sure if "breath" you are talking about moisture or hotter shingle temp. IIRC a study was done in Florida and found that the shingle temp wasn't nearly as affected by foamed vs open roof deck as was thought. To the point where it wasn't even a problem.
As far as moisture/water, that is something that would and does (my roof is foamed) concern me. You want to make sure you absolutely don't have leaks or leak prone areas. The foam doesn't let the decking dry out or even sometimes a leak be seen. The unfortunate obvious way you tell there's a leak is if shingles start blowing off in a certain area because the roofing nails are in rotten wood. If that happens hopefully the decking can just be ripped off and the rafters are still solid. If they aren't solid and are part of a truss, then it really starts to suck.
Posted on 7/1/23 at 10:30 am to Turnblad85
quote:
SHINGLE ROOFS
One thing to consider is if shingles fail and you replace roof deck, there goes your foam. One reason of many reasons I chose a standing seam roof. In addition to the longevity and resistance to wind and hail damage, I like the look also. I will never use shingles again so I will use foam and standing seam on anything else I build.
Posted on 7/1/23 at 1:25 pm to lgtiger
quote:
You need to talk to someone about how this will affect your home. My home has the conditioned attic and it is great, but my house was built for this. The AC contractor calculated this into properly sizing my AC unit for this. Fresh air introduction has to be calculated. You will probably need to remove your attic floor insulation and seal soffits. It's not as simple as spray the roof deck and call it a day.I would recommend a conditioned attic to anyone building a home, but you will need to make sure it is the right fit for the systems in your home as constructed. There are energy consultants who can advise you better than someone trying to sell you insulation without considering the whole of your building environment .
I just did my 80 year old house with no problems. My bills already showing that it’s well worth it. As long as your house breathes, mold should not be an issue. Use open cell low VOC
This post was edited on 7/1/23 at 1:26 pm
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