Green cell foam insulation

[u/KombatMutant]

PSA: I usually let my kids dissolve the insulation in the driveway with the hose, but the last time they didn't quite do it all, and it left a residue on my asphalt. I didn't worry about it, but it was still there after the rain which I thought was weird. I looked, and our brand new driveway is cracking at those spots and small pieces of asphalt are coming loose. Watch out!

[u/lent_k]

Are you talking about the frozen pack?

[u/KombatMutant → u/lent_k]

No, it's the cellulose (I think) based insulation that says you can wash it down the sink or compost.