e

HHSRS 06/06

1 (IDeA - 1)

June 2006

mould growth

Persons aged 14 years or under

Excess Cold

Yes

Yes

No

No

Damp and

Vulnerable age

Related hazards

First Floor Bathroom

Multiple locations

Secondary hazards

Ground Floor Bathroom

First floor rear bedsit in house constructed in 1949

DESCRIPTION OF HAZARDS

DWELLING:

Background: This is a three storey detached house. There are four bedsits, a large shared kitchen and

shared bathroom to the ground floor, three bedsits and shared bathroom on the first floor, and two bedsits on

the second floor. There are wash hand basins in each bedsit. The shared bathrooms lack space heating

provision, are internal and rely on artificial lighting and mechanical extraction. Ground floor bathroom contains

2 showers, 2 baths, and a single WC. There is also a separate WC to the ground floor. The first floor

bathroom contains a shower, a WC, and wash hand basin. The extractors to both bathrooms are inoperable,

and both are affected by severe mould growth.

Dwelling: The dwelling being assessed is the first floor rear bedsit.

LIST OF RELEVANT MATTERS

LIKELIHOOD & OUTCOMES

A

a

Rising Damp

-

b

Penetrating damp

-

c

Condensation

3

d

Mould growth

2

e

Energy efficiency

2

f

Background ventilation

-

g

Extract ventilation

3

h

Clothes drying facilities

-

i

Damp proofing

-

j

Disrepair

-

k

Exposed water tanks

-

l

Water using appliances

-

A

m

Plumbing/waste pipes

-

n

Rain water goods

o

Roof/sub floor spaces

p

Small room sizes

Secondary Hazards

# Compounding matters

A

-

-

-

-

-

B

-

None

Key

3

2

1

-

Seriously defective

Defective

Not satisfactory

Satisfactory/NA

1 (IDeA - 1)

June 2006

-

HEALTH AND SAFETY RATING SYSTEM SCORES

LIKELIHOOD

Low

High

1 in 100

Av: Pre 1946-79 HMOs: 967

100

< 4200 2400 1300 750 420 240 130

75

42

24

13

7.5

4

2.5

1.5 >

Justification

Although there is no evidence that there is dampness and mould in other locations, the

presence of mould in both bathrooms means that occupiers of this bedsit will be exposed

to mould spores over a twelve month period. Even though this may be for relatively short

periods, this exposure will increase the risk of causing or exacerbating asthma or other

respiratory conditions.

OUTCOMES

%

Av: 1946-79 HMOs: 0.0

Class I

0

< 0.05 0.15 0.3

0.7

1.5

3

7

15

26

38 >

Av: 1.0

Class II

1

< 0.05 0.15 0.3

0.7

1.5

3

7

15

26

38 >

Av: 10.0

Class III

10

< 0.05 0.15 0.3

0.7

1.5

3

7

15

26

38 >

Av: 89.0

Class IV

89.0

< 0.05 0.15 0.3

0.7

1.5

3

7

15

26

38 >

Justification

There is nothing to indicate that the spread of harm would be different from the national

average.

Av. 1946-79 HMOs: 5

RATING

A

B

C

D

E

F

G

H

I

J

Score:

49

RATING SCORES AFTER IMPROVEMENT

IMPROVE

Likelihood to

1 in 1000

Outcomes to

0

1.0 10.0 89.0

%

Justification

Removing the mould growth, providing appropriate space heating, and repairing or

replacing the mechanical ventilation (ensuring adequate overrun of the mechanical

extraction) to both bathrooms would reduce the likelihood to average for the type of

property.

Av: 5

NEW RATING

A

B

C

D

E

F

G

H

I

J

Score:

5

Av: Nos

Average likelihood and health outcomes for persons aged 14 years or under, 1997-99