当他说他做闭合电池时，我的承包商安装了开放式电池吗？
所以我们最终扣动了扳机,雇佣了罗盘ny to do two inches of closed cell foam at attic decking and one inch along eaves. It smells slightly like mildew 24 hours later. It seems softer than I was expecting, especially where it looks ‘bubbly’ … I asked for Lapolla Foam-Lok 2000-4g. Pictures below. I can even poke a finger in. (Last picture shows that) Did I actually get closed cell foam?? Also, what should I do about the several spots where the foam is pulling away from the rafters? Not counting the bubbly edges, it seems I have 3 inches left in the 2 by 6 rafter bays. Will the R-23 mineral wool batts still work compressed in that space? If not, should I get R-15 instead? (Is that enough to be safe as thermal protection in a space used for storage)? We will be putting half-inch drywall on the vertical walls/eaves, where the foam nearly fills all the space) Should I cut away the bubbly edges? Should I do any caulking between chimney and rockwool? They had said they would but then didn’t bring any.
感谢你的帮助。
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闭孔喷雾泡沫通常很难，但它通过安装的特定产品的密度变化了一点。我的正常测试是尝试扣掉一块 - 关闭电池，应该用扣环打破并留下干净的骨折边缘。如果它撕裂并留下衣衫褴褛的边缘，那么我会怀疑安装了开放单元格。
If you only have 3" of space left and you want to fill it with mineral wool, use the "sound" product (goes by various names from different manufacturers, but is sold for sound suppression and fire blocking instead of insulation) intended for 2x4 cavities. The "sound" product for 2x4 cavities is 3" deep and would be a perfect fit in the space you have, no compressing needed.
You'll want to trim the foam flush to the rafter edges prior to installing drywall.
Give it a few days WITH AIR CIRCULATION to let the smell go away. I usually recommend applying the spray foam on a Friday, then leaving town over the weekend. Normally when you return after 2-3 days the smell will be mostly gone.
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yeah, it does not break with a snap. And I can poke a finger in, which seems like a sign it's open cell.
Since I did not want open cell, and I am concerned about moisture in the plywood from radiating heat cycles, do I need install a smart vapor barrier like MemBrain over the rockwool?
>"...do I need install a smart vapor barrier like MemBrain over the rockwool?"
Even if they had installed closed cell foam, a smart vapor retarder would still be a good idea.
Dana，你同意这不像闭合电池看起来不一样吗？
Do you agree I now need to go with the thinner rockwool (I had bought the R23 on your recommendation, it's on order).
或者would it be best to get the rest of the rafters filled with open cell if they will do it since they gave me the wrong product?
What should I do to remedy the places where the foam is pulling away from the rafters?
Where are you located? If it is cold out, it is likely that the surface being sprayed was too cold, which can result in poor adhesion and potentially poor foam formation. Most of the foams require a substrate temp above 50F or so.
How much of the foam is pulled away like that. A couple spot would not be unheard of, but I high percent would be a problem.
Was the installer approved/trained by Lapolla?
我在4A中，这项工作是周二在早上完成的;那时是在50年代。该公司表示，他们由Resnet（住宅能源服务网络）认证......在Angies列表/消费者支票簿上有很好的评论。
I haven't looked carefully in every spot of the attic, but I have only seen three places so far. My question is do I need to put caulking in that gap to airseal?
I have emailed Lapolla with the pictures below to ask if this looks like 2000 4G to them. (Especially the picture where you can see I can dent the foam with a finger)
https://photos.google.com/share/AF1QipMCdGwEIjHhlZNQqy3cpJkEH-o6F-riAQOzgop3aF5QTD0ElIx0s2J4Kn8iI-RWXg?key=TUR5Wm9EWXpXVGtlYzhpUDIxQ3lQLThWTlZ3Q1BR
从框架收缩裂缝和分离in those pictures is a show-stopper. It was either the wrong mix, wrong temp (of either the foam or the substrate or both), the wood had too high a moisture content, or all of the above. Those pictures rate among the crappiest installations of closed cell foam I've seen in recent years.
让我们看看Lapolla在致电律师之前要说的话。
您可以将泡沫的立方体剪出，并在烘烤量表上重量。对于2LB闭合电池SPF，6“X6”X3“块应约为0.12LB（2oz）。开放式电池将是1/2至1/3的。
To me it just looks like a bad install on too cold sheathing or the mix was off. Maybe there was even some dew on the rafters when it was sprayed, thus the adhesion problem.
我已经合作过的所有封闭的细胞都非常坚实。你必须打了很难创造一个凹痕。
我会尝试用罐装泡沫密封空白。饮用稻草通常适合罐子上的一个，它可以进入漂亮的空间。
Did the contractor give you a written contract with the words “closed cell”?
It seems unlikely the manufacture will offer an opinion from photos. I think you would have better luck asking for a sample of their open and closed cell products and you can draw your own conclusions.
沃尔塔
Yes, we signed a contract with the words closed cell. I really want to get to the bottom of this so I can figure out what to do now since it's not really possible to remove the foam that has been applied. We have only paid half of the price so far.
你有较大区域的照片吗？在喷涂时难以对墙壁难以达到正常的屋檐和紧凑的区域，泡沫更具挑战性更具挑战性。
更大的开放区域看起来不一样吗？
I would contact lapolla and ask them to analyze a sample. I would also have the installer come back to review. Is the company owner the one who sprayed or did he send a separate crew?
尚未做任何事，您将希望访问此泡沫，以获取任何纠正措施或所需的测试。继续通风，窗户的粉丝几天。
It is a pretty big company. I have met the estimator/sales person; this was a separate crew.
The pictures where you see the separation from the rafter or the crack in the foam are not in the eaves. They are on the main part of the roof, in a very easily accessible area (full standing height).
稍后可以链接更多图片。
主要是泡沫对椽子冲洗，但倾向于在椽子边缘处更大的气泡，并且在海湾中间看起来更密集/更紧密（椽子湾通常约20-22英寸）。但即使我在海湾中间压力，它也很屈服（这就是手指凹陷来自的地方）
I have contacted the salesman/estimator asking him if this really was 2000 4G, given the easily dentable/tearable quality, and offered to schedule a visit for him to come look.
我们已经打开了大约12个小时的窗户，但将开始运行粉丝。
罗克沃尔是在订单上，不会进入几周，所以没有担心......如果我必须将它更改为R15而不是R23，因为@zephyr建议，这将延迟发货。
The “sound” stuff I mentioned is NOT the regular R15 stuff. The “sound” stuff is the same material, but a little thinner, so about R12.8. The advantage for you is it’s already cut to 3” deep, so it will be a good fit in your 3” space. Normal R15 mineral wool is 3.5” deep.
更好的选择是将喷雾泡沫承包商用开放式电池泡沫填充其余的海湾。如果他们错误地安装了错误的泡沫后，他们会这样做的话，我会这样做。让它们用椽子的底部修剪喷雾泡沫冲洗（如果这是一个成品空间中的墙壁或天花板，这将是标准的做法），并且在你把干缝放开之前，达娜建议将膜安装在它上面。
顺便说一句，一个用于常规主食枪镫骨的气动钉枪（不是通常的建筑钉书钉）是一种巨大的劳动力保护程序，用于让液体延迟等膜等膜。
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I asked the question about the contract because if they had a planed to sell closed and spray open the contract would have been vague. If the contract is clear the contractor is more likely to be honest and make things right.
我不确定它是一个有效的测试，但逻辑地，如果将封闭细胞泡沫样品淹没在水中几个小时，应漂浮和开放的细胞不应该。
您可能会发现此文件有趣。
https://polyurethane.americanchemistry.com/Spray-Foam-Coalition/Guidance-on-Sampling-Techniques-for-the-Inspection-of-Installed-Spray-Polyurethane-Foam.pdf
沃尔塔
Hi all, you are the best! I have a good news update -- after another eight hours of curing, it is definitely appearing more like closed cell foam. The denser areas are very hard in most of the attic, and even in the eave where it is squishier, it's not so soft that a finger sinks in and leaves a mark. The bubbly areas are more yielding, but do 'snap' when you break a bit off. The bit I left in water did float. So definitely was closed cell.
They shaved the foam along eave walls so drywall can be installed there; it feels like styrofoam there, pretty yielding. (second to last and third to last pictures)
The smell was stronger when I returned after eight hours, even though windows were open all day, but now seems to have dissipated. (I opened a window on the other side of attic and put fans in both sets of windows; leaving windows open today JIC).
The company is going to send a superintendent out to check out the install. I know to ask to remediate the places where it is not adhering to rafters and the places where it cracked, but do I need them to do anything about a 'belly button' type effect (photo number 10 in new set below).
对于那些想要看到更多图片的人，包括更多大图片，下面是一个新的链接。你看到的裸露的木头是双工的另一半的派对墙;她在屋顶装饰上绝缘，虽然只需搭配玻璃纤维贝蒂。
https://photos.google.com/share/AF1QipOasJoEfZ4uxpUInhSV0y52h9CF3vf3LXAP72ALtje_63VPkAobPKhkaruwp7fU0w?key=ZHl6dW4tb2ZqNHNwVEMwSzBxNENuX3hfRTBrMUNR
After all this is done, we will be putting up R-15 rock-wool batts in rafters and drywall on the eave walls where there is no more space for insulation. Do not plan to hang drywall everywhere.
块状“腹部按钮”效果非常典型的喷雾泡沫。在未经修剪的泡沫上通常不会有一个平坦/光滑的表面。这没什么可担心的。
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