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Old 02-05-2020, 07:03 PM   #1
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Default How would you attack this challenge?

Just like the post says. How would you go about this. Only painting steel beams, from red to black. Insulation will need to be protected as well those expensive windows and everything else. Obviously efficiency and quality are the main concerns. 36' at the peak so a boom lift will be necessary. I have my thoughts and have previous experience but im always looking for knowledge. Thanks
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Old 02-05-2020, 07:42 PM   #2
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I'd floss 6mil plastic behind the metal, maybe reinforced with cardboard in select areas if needed, tape all seams, 6 mil plastic on floors reinforced with plywood everywhere you plan on turning, spray adhesive to seal plastic seams together, #30 roofing felt around perimeter of floor, spray adhesive on underside of felt to keep it stuck to plastic, then spray it all.
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Old 02-05-2020, 10:18 PM   #3
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That's a lot of masking! Might be a pain in the ass to mask along all the strapping but not sure how else you could do it.
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Old 02-05-2020, 10:35 PM   #4
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If the sheeting isn't attached to the purlins I'd slip large pieces of cardboard under the purlins. I'd probably do two segments at a time to minimize amount of cardboard needed. Complete two sections, move to the next two. A segment being defined by the trusses, not the purlins.

If not able to slip anything under the purlins, I'd run. As far as I could, and as fast as I could!

Not a big fan of plastic on the floor....too much of a slip hazard.

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Old 02-05-2020, 10:45 PM   #5
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I have had g.c.'s ask me about that very same thing. I told them you should have asked me before you put the roof and walls on. I also told them, without giving them a price how crazy expensive it would be and they let it go. On that job it would be cost plus and brush and roll it. The drift and over spray potential with black paint is something I would not risk.
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Old 02-05-2020, 11:05 PM   #6
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I too would vote for brush/roll. The insulation is not likely attached in any way to the beams. Get some refrigerator boxes from an appliance store and rip them into wide enough strips to jam up between the beams and insulation. Bring in a rolling scaffold unit, drop the floor, and go to town. Those beams should roll out pretty nicely. There will be loads of up and down as well as shifting the cardboard (or whatever - guess even masking paper would work - which could just remain in place until the work is finished), so bid accordingly.
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Old 02-05-2020, 11:34 PM   #7
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Definitely need a boom lift. That much scaffolding is too much work. A tow behind electric or propane lift is the way to go in that pemb.
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Old 02-06-2020, 12:05 AM   #8
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I'd also suggest he might wanna consider spraying the steel & insulation white in order to minimize costs. It'd look nice and clean without breaking the bank.
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Old 02-06-2020, 09:10 AM   #9
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I didn't make it clear in my earlier post, I'd be spraying. HVLP with 2 gal. pressure pot, in a lift.

I never got into electrostatic spraying, but this would be the ideal type of work for that. Of course you'd have a considerable investment in the equipment, as finding a rental unit would be tough in most locals. And most likely a bit of a learning curve. But once you bought the sprayer, you'd have a marketable niche service.
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Old 02-06-2020, 02:28 PM   #10
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Quote:
Originally Posted by Lightningboy65 View Post
I didn't make it clear in my earlier post, I'd be spraying. HVLP with 2 gal. pressure pot, in a lift.

I never got into electrostatic spraying, but this would be the ideal type of work for that. Of course you'd have a considerable investment in the equipment, as finding a rental unit would be tough in most locals. And most likely a bit of a learning curve. But once you bought the sprayer, you'd have a marketable niche service.
Assume you have used an HVLP before. Personally, I'm afraid it might be too slow. A regular airless with FFLP tip would give about the same amount of overspray but with a much faster application rate. At least that's my take.
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Old 02-06-2020, 02:58 PM   #11
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The following is an assessment scale with a range from 1-10 (Ten being more time and effort)

The assessment is based on modest surface preparation and a one coat application.

Procedures for Brushing, Rolling, Spraying

Method- B/R/S
Access- 6/5/3
Surface Prep- 4/4/4
Tape/Masking- 3/5/10
Floor covering- 2/5/10
Application- 8/5/3
Clean up- 3/4/10


Totals 26/28/40


Scale does not fit right when posted. Brushing is the best approach. IMO.

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Old 02-06-2020, 05:25 PM   #12
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Quote:
Originally Posted by RH View Post
Assume you have used an HVLP before. Personally, I'm afraid it might be too slow. A regular airless with FFLP tip would give about the same amount of overspray but with a much faster application rate. At least that's my take.
Yes, a time or two...for many years. Fine finish tips are ok too. Being I worked with HVLPs for at least 20 years before FF tips were available, I have oodles of HVLP experience. HVLP is still going to produce less over spray, merely due to the fact there is less paint coming out. Transfer efficiency of HVLP is still considerably greater than FF tip.

I agree a FF tip in an airless would be quicker. I guess it would depend on how much over spray the job would tolerate. I tend to dance with the girl that I came to the dance with, but in this case may be wrong. But it is what I would do. Either way, both methods would be quicker than brush/roller.
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Old 02-06-2020, 06:55 PM   #13
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spraying that vs brush+mini roller would take about double the time id estimate
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Old 02-06-2020, 07:22 PM   #14
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honestly, with a lift, you can bang that out with brush and roller in no time. Especially if you had 2 guys up there..I wouldn't want to muck around with masking and sprayers. Although I would still have a couple squares of cardboard to slip under the metal. You don' want any overspray or brush drips on that insulation..
Now which product is the question?..

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Old 02-06-2020, 09:12 PM   #15
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How high is the peak? From the pics it looks like a scissor lift would work. I vote with brush/roll and cardboard to protect the insulation.
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Old 02-06-2020, 09:17 PM   #16
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Man, I'm getting beat up. I still say spraying would be quicker....I'm doing two coats though. I don't want any holidays! Dude has $$$, and I want to give him a top notch job. He sees those holidays, you ain't getting anymore work from him!!!
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Old 02-06-2020, 10:25 PM   #17
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Quote:
Originally Posted by Gwarel View Post
How high is the peak? From the pics it looks like a scissor lift would work. I vote with brush/roll and cardboard to protect the insulation.
It's 36' to the peak and with the deck being angled like that it's best to use a boom.
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Old 02-07-2020, 03:11 AM   #18
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I say two coats by hand...
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Old 02-07-2020, 11:48 AM   #19
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The calculations I formulated suggest brushing. Cool, calm, and collected.
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Old 02-07-2020, 12:52 PM   #20
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Heck, just rattle can it with some Rustoleum from HD. It’s even got primer in it.
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