encrust9870@lemmy.world to Ask Lemmy@lemmy.worldEnglish · 13 天前Why do many hotel ceilings (in the US) look like this?lemmy.worldimagemessage-square22fedilinkarrow-up177arrow-down13file-text
arrow-up174arrow-down1imageWhy do many hotel ceilings (in the US) look like this?lemmy.worldencrust9870@lemmy.world to Ask Lemmy@lemmy.worldEnglish · 13 天前message-square22fedilinkfile-text
minus-squareSeinveld@lemm.eelinkfedilinkEnglisharrow-up9·12 天前They’re precast concrete planks that span the width of the building. You’re looking at the seams between the planks.
They’re precast concrete planks that span the width of the building. You’re looking at the seams between the planks.