15:1:1: This occurs when the moisture in the air condenses onto cold surfaces.

15:1:2:1: The main cold surfaces in the properties are:-

15:1:2:2: The aluminium window frames.

15:1:2:3: The single glazed windows.

15:1:2:4: The walls.

15:2: Tenants cannot afford to carry out preventive measures to correct the excessive condensation, especially when such measures have to be taken time and time again because of the original poor level of insulation.

15:3: Tenants have to save hard from a low income to try to improve their homes only to find their efforts are defeated by damp problems that result from the excessive condensation.

15:4:1: Problems of black mould are prevalent on the estate and this causes:-

15:4:2: Health worries for the tenants especially for those with young children.

15:4:3: The spores released by the black mould can aggravate problems of asthma, hay fever, etc. See appendix 16:2:C, 16:3 and 16:4:A.

15:4:4: The need for constant removal of mould and damaged wall paper, etc.

15:4:5: Stained walls and peeling wall paper. See appendix 18:5:A.

15:5:1: Curtains need to be replaced frequently to be cleaned causing additional hidden fuel costs and wear and tear.

15:5:2: To be taken into account is a lot of tenants are on a low income and spend a great deal of time in their homes.

15:5:3: A large number of tenants have young children.

15:6: Opening windows to try to remove moist air because of condensation lets heat escape which increases fuel bills and also reduces security.

15:7: Initial heating is used to evaporate the condensation and is therefore wasted.

15:8: See appendix 12:1 and 15:6 regarding heat loss through windows.

15:9: The construction is described in more detail in relation to the heat loss of the properties in the appendix, reference 3:1 to 3:6 and 4:1 to 4:10.