DPC

Specifications

dpc is a thick, black polyethylene strip with an embossed surface that is used as a dampcourse material

 

 

Introduction

 

Damp proofing in construction is a type of waterproofing applied to building foundation walls to prevent moisture from passing through the walls into interior spaces.

A damp-proof course (often abbreviated to DPC) is a horizontal barrier in a wall designed to resist moisture rising through the structure by capillary action - a phenomenon known as rising damp.

In simpler words, DPC is used to stop dampness in buildings. In theory, due to capillary movement of water, water rises from earth to the building. Passing through foundation it rises higher to reach walls. Reaching water to walls may damage them by creating cracks, breaking cement-paint bonds and creating dark-spots on wall etc. So, to avoid water from reaching to walls, we lay DPC layer at plinth level (the joint level of walls and foundations). DPC layer is usually laid below all the walls unaffected from the issue that the respective wall is a load bearing wall or a partition wall.

 

Specification

 

Thickness: 450-1200um

Size/roll: Width: 5-150m; Length: 30-100m

 

Recommended Use: 

 

 

Used as a non-exposed dampcourse material in brick and blockwork walls and also 

 

as a concealed flashing around internal window and door frames.

 

 

 

 

 

 

Sizes available

 

 

 

110mm x 30m /50m roll

 

150mm x 30m /50m roll

 

230mm x 30m /50m roll

 

300mm x 30m /50m roll

 

380mm x 30m /50m roll

 

450mm x 30m /50m roll

 

600mm x 30m /50m roll

 

Special sizes made to order

 

Physical Property:

 

 

 

No.	Item		Physical Property
1	Weight g/m2		450
2	Tension N/cm	Longitudinal ≥	300
		Transverse ≥	250
3	Fracture elongation %	Longitudinal ≥	200
		Transverse ≥	100
4	Break tension N ≥		20
5	Water impermeability 30min no leaking		0.3Mpa no leaking
6	Cold bending -20°C		No crack

 

 

 

package details