DESCRIPTION OF HAZARDS

Dwelling: 3 storey house built in the early 1970's

Background: This is a three storey end-terraced town-house built around 1971 and provides accommodation on

three levels. The ground floor comprises of a bedroom, study and a WC, on the first floor is a kitchen and lounge; two

bedrooms and a bathroom are on the second floor. The front elevation is north-east facing. The walls are of cavity

construction with brick outer leaf and concrete block inner leaf. At the top floor level, the external wall has some

additional exterior timber cladding to both the front and rear elevations. There is around 150mm of loft insulation

present but there is no insulation to the wall cavity. The dwelling has a full gas fired central heating system with

adequately sized radiators in each room and within the stairwell. Windows are all timber, single glazed, casements of

typical size, although within the rear wall of the lounge there are two large picture windows that extend from floor to

virtually ceiling level and make up around 60% of the overall area of the rear heat loss wall. All the windows are in

reasonably good repair condition and no more draughty than to be expected for their age and style.

LIST OF RELEVANT MATTERS

LIKELIHOOD & OUTCOMES

a

Thermal insulation

2

g

Controls to heating system

-

b

Dampness

-

h

Amount of ventilation

-

c

Settling of insulation

-

I

Ventilation controls

-

d

Type of heating provision

-

j

Disrepair to ventilation

-

e

Size of heating provision

-

k

Draughts

-

f

Installation & maintenance of heating system

-

Key

3

Seriously defective

2

Defective

1

Not satisfactory

-

Satisfactory/NA

Excess

Vulnerable age

Related hazards

o

BCC 02 - 06

July 2008

Cold

Persons aged 65 years or over

Excess Heat

r

e

Bottom of floor plan indicates the front elevation

HHSRS Operating

Guidance: February 2006

Multiple locations

Yes

No

Secondary hazards

Yes

No

G

r

S

c

F

i

OUTCOMES

Class I

< 0.05

Class II

< 0.05

Class III

< 0.05

Class IV

< 0.05

4.6

21.5

Av: 42.0

42.3

Score: 1,819

RATING

RATING SCORES AFTER IMPROVEMENT

IMPROVE

Likelihood to

1 in 1,800

Outcomes to

31.6

4.6

21.5 42.3

%

Justification

Provision of double glazing only to the large windows in the rear wall would reduce the heat loss and thus the likelihood

to near average. However installing cavity wall insulation, increasing the thickness of loft insulation to a level of 250mm

or greater and replacing all windows with double glazed units would singnificantly reduce the likelihood of an

occurrence.

Av: 880

Average likelihood and health outcomes for all persons aged 65 years and over, 1997-1999.

NEW RATING

Av: Nos

Score: 181

G

H

I

J

BCC 02 - 06

July 2008

HEALTH AND SAFETY RATING SYSTEM SCORES

Low

High

1 in

180

LIKELIHOOD

Av: 1946-79 Non HMO: 400

< 4200 2400 1300 750 420 240 130

75

42

24

13

7.5

4

2.5

1.5 >

Justification

The property is largely typical of its age, however the large area of single glazing in the rear wall means that heat loss

will be greater than typical of a house for this age and that a likelihood of an occurrence is therefore increased. Unlike

many dwellings of this age which by the end of the 1990s had had some improvements such as double glazing, this

property has not had any such work undertaken. The property is also an end terrace which increases heat loss.

%

Av: 1946-79 Non HMO: 34.0

31.6

0.15 0.3

0.7

1.5

3

7

15

26

Av: 6.0

0.15 0.3

0.7

1.5

3

7

15

26

Av: 18.0

0.15 0.3

0.7

1.5

3

7

15

26

0.15 0.3

0.7

1.5

3

7

15

26

38 >

38 >

38 >

38 >

J

A

B

C

D

E

F

Justification

The is nothing to justify changing the spread of harm outcomes from the average

Av: 1946-79 Non HMO: 880

A

B

C

D

E

F

G

H

I