Forum Title: Estimating commercial jobs and applications
Hello everyone.... I asked Nick this question earlier and he asked me to post it on here to also get other people’s feedback. I have a question for you that I’m hoping you’d kindly answer? Since I’ve started sealcoating I’ve mainly sealed residential driveways by either brushing or spraying with a 50% overlap on my spraying. I’ve only had about 5 commercial jobs but I’m looking to do more this season. My question is what is the proper application process for spraying parking lots and bidding them cost wise per square foot? 2 coats with what size tip(s) with a possible 3rd coat at entrances? So do you normally trim everything out around curbs, etc one coat and then spray a coat on overlapping or not and with what size tip and then after the sealer dries spray the second coat on and with what size tip? Watching a lot of videos and a lot look like they spray one heavier coat and overlapping it 50% but it doesn’t sound like that’s the proper application for commercial? And when charging do you charge so much per square foot for each coat? Our areas going rate is normally between .13-.20sf. but there’s a few guys cheaper.
Category: Paving Post By: PERRY ROJAS (Merced, CA), 12/05/2019

Rich , commercial man don’t be a one coat wonder , so much traffic you will never get called back it will wear too fast, although in competitive bidding spell it out and explain why you recommend 2 or you’ll get beat. It’s always about educating our customer. We generally spray both although all of the ways you mentioned are sufficient. Unlike Nick who likes the spray shield I cut in all my edges on the first coat and just barely touch the cut edge with the spray on both coats. It will always stay a bit darker than what you spray until it cures. As for tip size depends on lot, how tight it is if it’s wide open or what. We use anywhere from an 80/50 to an 80/70 but I like to walk a little slower than other guys and pay attention to what’s going on . Definitely overlap 50% on both coats don’t want any bare spots or thin ones. As for price just do what you do. Remember the 2nd coat is the money coat, no cleaning , no edging just pull up and go. I generally give them a break on It because it helps convince them to do 2 coats . So if your getting say .14 for 1 coat is bump it to .21-.23 but remember stay competitive with your market and get your name out there. You won’t want to do residential once you do a couple nice commercial lots

- TINA SULLIVAN (Escondido, CA), 01/31/2020

I normally do two coats sprayed. I'm normally around .14 a square foot total charge (depends on a lot of factors but that is the starting point). I overlap each pass 50% then go in the opposite direction on the second coat. I cut in with brooms and squeegees before we start spraying. I try to overlap it to within a foot of whatever I've cut in around on the first coat. Second coat I will stay a little further away just for speed. I use an 80/100 tip most of the time, but will drop down to an 80/70 if room is tight. I like to walk fast and that size combined with a 1/2 inch tip have eliminated most plugs.

- WILLARD QUINN (Visalia, CA), 01/31/2020

I would always consult with your sealer supplier. Most will say two coats. The problem with driveways is that the sealer can get too thick and cause a problem, thats where you will see guys do 1 coat. I would stick to the suppliers recommendations as close as you can, except in special circumstances. 3rd coats on entrances are a good idea, but market and charge for it, don't just do it. Figure about 30sf per gal, but your supplier can help you with numbers specific to their formula. Factor in the surface, rough to smooth as well. Know your numbers is the key.

- CLIFTON OCONNOR (Ventura, CA), 01/31/2020

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