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Methods of Dpc Dampcourse/Damp Proof Course (DPC) for Embossed Polythene/Waterproofing Wall

FOB Price:	US$1,300.00 / Ton
Min. Order:	10 Tons

Min. Order	FOB Price
10 Tons	US$1,300.00

Port:	Qingdao, China
Production Capacity:	90000
Payment Terms:	L/C, T/T, Paypal

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Product Description

Company Info

Basic Info.

Certification

ISO, CE

Color

Black

Material

LDPE

Type

Roofing and Waterproofing

Ceiling Tile Shape

Roll

Function

Anti-static, Waterproof

Thickness

500um

Ceiling Tile Type

LDPE

Surface Treatment

Rhomboid Pattern

Trademark

freeyoung

Transport Package

Non Fumigation Wooden Pallet

Specification

thickness: 500um 100mm x 30m /roll 150mm x 30m /ro

Origin

China

Product Description

Damp Proof Course (DPC) -Methods of DPC Installation in Construction

What is DPC?

Damp proof course (DPC) is generally applied at basement levels which restricts the movement of moisture through walls and floors. Selection of materials for damp proof course and its various methods of applications in buildings is discussed.

Materials for Damp Proof Course (DPC)

Properties of Materials for DPC

An effective damp proofing material should have the following properties;

It should be impervious.
It should be strong and durable, and should be capable of withstanding both dead as well as live loads without damage.
It should be dimensionally stable.
It should be free from deliquescent salts like sulphates, chlorides and nitrates.

Types of Materials for Damp Proof Course

The materials commonly used to check dampness can be divided into the following three categories:

Flexible Materials: Materials like bitumen felts (which may be hessian based or fiber/glass fiber based), plastic sheeting (polythene sheets) etc.
Semi-rigid Materials: Materials like mastic, asphalt, or combination of materials or layers.
Rigid Materials: Materials like first class bricks, stones, slate, cement concrete etc.

Selection of Materials for Damp Proof Course in Buildings

The choice of material to function as an effective damp proof course requires a judicious selection. It depends upon the climate and atmospheric conditions, nature of structure and the situation where DPC is to be provided.

The points to be kept in view while making selection of DPC materials are briefly discussed below:

1. DPC above ground level

For DPC above ground level with wall thickness generally not exceeding 40 cm, any one of the type of materials mentioned above may be used. Cement concrete is however commonly adopted material for DPC at plinth level, 38 to 50mm thick layer of cement concrete M15 (1:2:4 mix) serves the purpose under normal conditions.
In case of damp and humid atmosphere, richer mix of concrete should be used. The concrete is further made dense by adding water proofing materials like Pudlo, Impermo, Waterlock etc. in its ingredients during the process of mixing. It is used to apply two coats of hot bitumen over the third surface of the concrete DPC.

2. DPC Material for floors, roofs etc.

For greater wall thickness or where DPC is to be laid over large areas such as floors, roofs, etc., the choice is limited to flexible materials which provide lesser number of joints like mastic, asphalt, bitumen felts, plastic sheets etc.
The felts when used should be properly bonded to the surface with bitumen and laid with joints properly lapped and sealed.

3. DPC Material for situations where differential thermal movements occur

In parapet walls and other such situations, materials like mastic, asphalt, bitumen felts and metal (copper or lead) are recommended.
It is important to ensure that the DPC material is flexible so as to avoid any damage or puncture of the material due to differential thermal movement between the material of the roof and the parapet.

4. DPC material for Cavity Walls

In cavity wall construction, like cavity over the door or window should be bridged by flexible material like bitumen felt, strips or lead etc.

Methods of Damp Proof Course Installation in Construction

General principles to be observed while laying damp proof course are:

The DPC should cover full thickness of walls excluding rendering.
The mortar bed upon which the DPC is to be laid should be made level, even and free from projections. Uneven base is likely to cause damage to DPC.
When a horizontal DPC is to be continued up a vertical face a cement concrete fillet 75mm in radius should be provided at the junction prior to the treatment.
Each DPC should be placed in correct relation to other DPC so as to ensure complete and continuous barrier to the passage of water from floors, walls or roof.

Figures 1 to 7 explain provision of damp proof course under different conditions

Address: Weifang, Shandong, China

Business Type: Trading Company

Business Range: Agriculture & Food, Construction & Decoration, Consumer Electronics, Furniture, Light Industry & Daily Use, Manufacturing & Processing Machinery, Office Supplies, Service

Management System Certification: ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000, OHSAS/ OHSMS 18001, IATF16949, HSE, ISO 14064, QC 080000, GMP, BSCI

Main Products: Flashing Tape, Waterproof Materials, Self Adhesive Tape, Builders Film, Bituminous Dpc, Sbs Modify Waterproof Membrane, Bitumen Asphalt, Quick Joint Sealing Tape, Cabinet, Hatch Cover Tape

Company Introduction: Shouguang freeyoung Trading Co., Ltd. Was established in November 17, 2017. Three shareholders, three major industries, three ideal 80s, and a joint establishment of FREEYOUNG company. The company has served the United States, Brazil, Canada, Cuba, Philippines and other countries in accordance with the concept of free, young, hard and upward management. Regional customers and strategic collection, the company has import and export qualifications, a total of 8 foreign trade personnel, large enterprise group for more than 10 years foreign trade work, have rich experience in foreign trade, the company provides one-stop service, in the quality inspection team, logistics liaison, customs clearance and other services are unique, we heart, let customers rest assured!

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Product Description

Company Info

Basic Info.

Product Description

Damp Proof Course (DPC) -Methods of DPC Installation in Construction

What is DPC?

Materials for Damp Proof Course (DPC)

Properties of Materials for DPC

Types of Materials for Damp Proof Course

Selection of Materials for Damp Proof Course in Buildings

1. DPC above ground level

2. DPC Material for floors, roofs etc.

3. DPC Material for situations where differential thermal movements occur

4. DPC material for Cavity Walls

Methods of Damp Proof Course Installation in Construction

General principles to be observed while laying damp proof course are:

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