Hardiboard/Dryvit - Certified SoftWash Roof Cleaning

Jeff Thompson · Junior Member

Hardiboard/Dryvit

Hank Timmermann · Junior Member

Jeff Thompson wrote:
Is Hardiboard and Dryvit the same thing? Or more importantly, is the cleaning aspect the same? I read a couple articles that lead me to believe they are similar if not the same, but read another article that suggested that Dryvit was actually a coating to go over something like Hardiboard. Now I'm confused.

Jeff,

They are not one in the same. Hardiboard looks like old style clapboard siding. Dryvit looks like stucco and is sometimes mistaken for the same. Do a google seach(images) and you'll see what I mean. Both can be serviced with AC's soft wash system or any other for that matter. We have serviced both and our customers are always happy with the results.

Hank

John Aloisio · SoftWash Systems 5-Star Professional

Jeff,

Hardi board is a cementious siding board & dryvit is a trowel-able cement based coating over an insulation board. You can softwash them both. We have used a 1% mix on both. Here are a few pics of what each looks like.

Jeff Thompson · Junior Member

Perfect. Thanks guys for getting my head straight.

Matt Jennemann · Junior Member

Johns spot on as always. One thing to remember though is that dryvit is extremely easy to put a dent in (unlike hardiboard or stucco) if you hit it with something like the top of your ladder or ladder stand off so tell your guys to be careful. It's hard to fix when it happens trust me I know I'm an ironworker and put the end of a 40 foot extension ladder through it on a casino in St. Louis and the guys that trowel it on were not happy to say the least. God bless and be safe.

Jeff Thompson · Junior Member

Thanks for the heads up Matt.

AC Lockyer · Administrator

Thanks for jumping on this Y'all.

AC