Spraying vs rolling paint on new wood?

I知 a novice painter and I have a project to prime and paint about 100 pieces of exterior trim on my house.
I知 using Sherwin Williams A-100 Alkyd primer and Sherwin Williams Emerald Urethane Enamel paint on new Douglas Fir trim boards. I知 painting the boards before installing them by laying flat on some 2 x 4痴 on saw horses
I have access to a professional grade Graco airless sprayer vs rolling the primer and paint.

Question is: will rolling or spraying give better adhesion of the primer to bare wood and paint to primer?

If I spray, is it worth it to back roll after spraying? I want to do this project with the most lasting results.

Thank you.

 

How you apply the paint, spray or roller makes no difference, what you get are just different finishes.

 

Spray only just puts the coating on top of the surface while brushing or rolling helps to work it into the grain a little. That is one of the reasons back rolling is recommended. I often spray the primer and brush/roll the finish [or spray and back roll] Whether or not it's worth it to spray depends on how much you have to do along with what steps are needed to take care of over spray. Brushing/rolling generally gives a longer lasting finish over wood than just spraying.

 

Thanks marksr, I was surprised when the salesperson at Sherwin told me the same, but it kinda makes sense I guess. Certainly not what I wanted to hear lol. I had a feeling this might start a debate amongst the experts.

Thanks again

 

so I went ahead and rolled the primer (SW A-100 alkyd primer) and letting it dry overnight.
My paint is SW Emerald Urethane Trim Enamel.
Is it equally important to back roll both coats of the Emerald top coats? I like the quality of the finish with the sprayer, but don稚 want to compromise adhesion or durability. That is my most important factor here.

Thanks again.

 

The main thing is for at least one of the coats [primer or finish] be rolled. Rolling the primer and first coat of finish and spraying the final coat is a good plan.