Why We Recommend Broom Finish for Driveways and Walkways

Summary:

Cesar's recommendation of broom finish is grounded specifically in Washington's wet climate and in safety. He contrasts it directly with exposed aggregate, which he says becomes slippery over time in this region. Broom finish works better because the brushing process leaves lines and texture across the surface, and that texture creates traction underfoot. His concern is practical rather than aesthetic: on a surface that stays wet much of the year, he doesn't want a homeowner or their family slipping and getting hurt. That reasoning is why broom finish is his default recommendation for driveways, walkways, and other outdoor surfaces people use daily, and why the timing of the broom pass matters to the result.

Answer:

Broom finish is the better way, especially over here in Washington. I'll tell you why. Exposed aggregate gets slippery with the time. It looks nice, but after a while, with all the rain we get here, it gets slick. The broom finish is better because it has the lines in it. It has some tracks in the surface. That gives you traction, so like that you're not going to slip yourself and you don't get hurt. That's the main thing for me. Here it's wet most of the year. Your driveway is wet, your walkway is wet, and people are walking on it every day, kids are on it, older people are on it. So I want that texture there. The way it works is after the concrete is placed and it's setting up, we pull the broom across the surface at the right time to leave those lines. Too early and they close back up, too late and you can't get them in. That timing is what gives you the grip.