Details from the label:*
- *Brand*: TOM
- *Type*: DAMP PROOF COURSE
- *Standard*: CONFORM TO BS6515
- *Size*: 225 MM WIDTH x 50 MTRS LENGTH
- *Material*: Looks like embossed black polyethylene/bitumen DPC sheet
*What it's used for:*
DPC is a moisture barrier installed in buildings to stop rising damp and ground water from moving up through walls and floors.
*Common uses:*
1. *Walls*: Laid horizontally in block/brick walls, usually 150mm above ground level. Stops moisture from the foundation wicking up into the walls.
2. *Under floors*: Used as a barrier under concrete floor slabs to prevent ground moisture.
3. *Cavity walls*: Sometimes used to bridge cavities.
*Why this one:*
- *225mm width* is standard for a 225mm / 9-inch block wall in Nigeria.
- *BS6515* is the British Standard for polyethylene DPCs, so