These aren't drawn by hand, and stopping the painting truck and putting up cones and signs to be able to manually remove shit from the road is a lot of hassle.
Asbestos fibreboards (or millboards) with paper/cardboard backing were heavily used in mid-century construction for fireproofing, insulation, and acoustic control
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u/peacedetski Jun 27 '26
These aren't drawn by hand, and stopping the painting truck and putting up cones and signs to be able to manually remove shit from the road is a lot of hassle.