My mother is building a small house near Bandera. 1100 sq ft approx. I am trying to get a rough idea what the cost would be to foam it. I have seen that closed cell seems more recommended. What is the real world cost for exterior walls and attic? This will be a pier and beam house. Should we foam the floor as well? This is my first experience w a non slab home.
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School me on spray foam for new construction
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I have no idea on the cost as in was buried in our contractor's bid but that is what we have in our new ranch house and the insulating power is awesome. You can go in the attic in the middle of the afternoon and there is probably not more than a 10 degree difference between the attic and the house.
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Originally posted by deerwatcher51 View PostI have no idea on the cost as in was buried in our contractor's bid but that is what we have in our new ranch house and the insulating power is awesome. You can go in the attic in the middle of the afternoon and there is probably not more than a 10 degree difference between the attic and the house.
Was in an attic yesterday and I was shocked. Totally different concept than what we have lived in my whole life. Should make the AC unit run less and more efficiently
BP
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Do it!, the old buy once, cry once is true in this case. I don't remember our cost, but we have a 3300 sq ft home and a 4800 sq ft barn with 3 freezers and two refrigerators, a window unit, two air compressors and a small welder. The house sits at 72-74 during the day but drops to 68 at night in the bedroom. In the 6 years we have been here not one utility bill over $290.00. I would say the average bill per month for the year is around $200
We have open cell.
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Spray insulation is great. It will make your floor very solid. Almost no bounce. Draw back is as mentioned before there is no easy access to anything that is buried within the joist bays now covered in hard foam. And makes foundation repair if ever needed very costly. But I still highly recommend.
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Originally posted by Ynotdrum View PostSpray insulation is great. It will make your floor very solid. Almost no bounce. Draw back is as mentioned before there is no easy access to anything that is buried within the joist bays now covered in hard foam. And makes foundation repair if ever needed very costly. But I still highly recommend.
Just curious.
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Originally posted by Ynotdrum View PostSpray insulation is great. It will make your floor very solid. Almost no bounce. Draw back is as mentioned before there is no easy access to anything that is buried within the joist bays now covered in hard foam. And makes foundation repair if ever needed very costly. But I still highly recommend.
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All the above. Closed cell is generally used anywhere there is no possibility of a water leak, open cell is used where there may be a water leak(allows you to know there's a water leak). We had all walls and floors sprayed, even interior walls, and between floors. It kills sound, especially people walking upstairs. We did this in a ln existing metal building, that was already insulated. Framed against existing insulation and then sprayed it. 6" in the walls 8" in the ceiling. If it's a 100° out, I can keep it at 61° and the unit might kick on 3 or 4 times a day. I'm running 2000 sqft with a 1.5(edit) ton unit, and four vents.Last edited by MadHatter; 08-05-2018, 12:58 PM.
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