Estimating, Roofing Cost For Elastomeric Coating.

 
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Old 10-21-2008, 11:09 PM   #1
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Estimating, Roofing Cost For Elastomeric Coating.


I Have a shop with t a corrugated roof, one slant, with around 25-30 degree slope. rectangle.

Its around 8500 square feet, i just coated it with elastomeric paint, what would you guys have charged for this? can you do square foot pricing, JUST wash for prep, and coat. No masking involved. I just want to know how much i could have gotten it done for?
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Old 10-22-2008, 01:54 PM   #2
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Re: Estimating, Roofing Cost For Elastomeric Coating.


Elastomeric paint or elastomeric roof coating?

Who's product are you using? At what rate are you going to apply (how many gallons per square)?


Elastomeric is a funny thing, there are so many variables. Every manufacturer is different, and the prices range incredibly.



I'm doing one next week on a flat roof, about 1/8" of slope per foot. We will be doing a fully polyester reinforced elastomeric built up system for about $350 a square using about 5 built up gallons per square. I am using Adurel which is alot more pricey than most. On a metal roof we'd be less of coarse, since it's not built up, nor reinforced. In addition it's usually sprayed on metal roofs which is faster. We pour it on our low slope roofs.

How much would I be? Material alone would cost me nearly $4k at 1.4 gallons per square in acrylic. Solvent based would cost me more. That's a 3 man 2 day job so add $4,000 for labor and burdens and some overhead. 11% for salesman... How much profit do you want?


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Old 10-22-2008, 02:49 PM   #3
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Re: Estimating, Roofing Cost For Elastomeric Coating.


The cost for a coating like you stated runs about $1.40 to $1.75 a square foot. That's labor and materials, power wash, 2 coats of elastomeric. tape minimal seams and seal fastener heads as needed.
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Old 10-22-2008, 04:27 PM   #4
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Re: Estimating, Roofing Cost For Elastomeric Coating.


i forget the brand name, its acrylic roof coating, 3 gallons per square if i recall correctly? i can get those details tommorow.

I do know we used 13 x 5 gallons for half the roof at one coat, and the second coat over just the fasteners. so 65 gallons total, for the first half.

we will pick up another 65 gallons tommorow, and do the same for the second half. at 115 per 5 gallons, its 3000 total for material.

we are debating a 3rd coat.... what do you think?
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Old 10-23-2008, 07:57 AM   #5
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Re: Estimating, Roofing Cost For Elastomeric Coating.


Contact the manufacturer of the product. They may have a highly reflective clear coat you can use for your 3rd coat.
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Old 10-23-2008, 09:08 AM   #6
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Re: Estimating, Roofing Cost For Elastomeric Coating.


When coating a metal building with white elastomeric the existing surface may show through the coating a little, if a primer was not used first a third coat will cover and look better but the roof still should be watertight.
Normally they call for 1.5 gallons per square on metal roof per coat. Its all in the preperation.
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Old 12-03-2008, 10:51 PM   #7
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Re: Estimating, Roofing Cost For Elastomeric Coating.


I have used several different products and there are quite a few variables. On a corrugated roof, our scope would be to powerwash, prime with rust inhibative primer such as zinc chromate or zinc oxide, replace all loose or missing fasteners with oversized fasteners, seal all fasteners with elastomeric mastic (hershey kiss), seal all vertical and horizontal seams with three course application of elastomeric mastic and membrane (4" or 6"), seal all penetration bases with three course application of elastomeric mastic and membrane (4" or 6"), Replace all missing or damaged vent caps, apply two coats of elastomeric mastic (Topcoat, Mulehide, or RoofGuardian) at rate of 1.25 gallons per sq per coat. Second coat is applied 24 hours after initial coat and is applied in opposite direction as first coat to catch all holidaze.

We generally charge from $185.00 to $240.00 per square for standard metal roof coating. All our roof coatings are sprayed. Coatings are hands down the best money in the roofing business.
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Old 12-08-2008, 07:56 AM   #8
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Re: Estimating, Roofing Cost For Elastomeric Coating.


I could install a 48 mil ADFT polyurea membrane fully adhered for about 2.50 a foot.

WAY better than any acryics.

I was usung the GAF Topcoat system, applied to specs, and they have all failed within five years, except for one that was a 6/12 over smooth BUR. The rest have washed off, and we are re-coating with our instant set polymer system.

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