water proofing and damp proofing

HRISHIRAJ SARMA | 2014 | APIED 1

WATER PROOFING AND DAMP PROOFING

2nd semester B.I.DBuilding Construction

HRISHIRAJ SARMA | 2014 | APIED 2

Water ProofingThe treatment given to prevent leakage of water from external surface (particularly from roof) is generally termed as Water Proofing.

Damp ProofingThe treatment given to keep the walls, floors and basement dry is termed as Damp Proofing.

HRISHIRAJ SARMA | 2014 | APIED 3

Preliminary Understanding1. Defects caused by

dampness.2. Causes of dampness.3. Sources of dampness.

Methods of Damp Proofing

1. Membrane damp proofing.2. Integral damp proofing.3. Surface damp proofing.4. Guniting.5. Cavity wall construction.

HRISHIRAJ SARMA | 2014 | APIED 4

Materials used for damp proofing1. Need to Understand types

and properties of D.P.C materials.

2. Selection of D.P.C : above ground level. for floors and roofs. for cavity wall construction. places where different thermal

movements occur. at expansion joints.

HRISHIRAJ SARMA | 2014 | APIED 5

Damp proofing treatment in building

1. Treatment to foundation.

2. Treatment to floors.3. Treatment to walls.4. Treatment to flat roof.5. Treatment to parapet

wall.6. Treatment to pitched

roof.

HRISHIRAJ SARMA | 2014 | APIED 6

HRISHIRAJ SARMA | 2014 | APIED 7

HRISHIRAJ SARMA | 2014 | APIED 8