Typical 1930’s housing stock, solid wall construction

1930s build

Single skin brick wall

No insulation

Cold……draughty….

Decided to insulate

before moving in

External wall?

Internal wall?

Internal wall insulation

Pros:

Cheap(er), depending on

product used

Doesn’t affect the ‘look’ of the

house

Cons:

Less efficient insulation (more

thermal bridging)

Lose space internally

Disruptive/dusty

Additional work needed?

Move radiators & pipes

New (deeper) window sills

New/move skirting boards

Plug sockets

External wall insulation

Pros:

Don’t lose space internally

Better insulation

Less disruption

Cons:

Cost – more expensive

‘Step’ between adjoining

houses

Rendered finish, may require

planning permission (brick

house)

Additional work needed?

Extend gas flue; move satellite

dish, power cables, alarm box

etc

Retain brick detail e.g. through

brick slips

Before – Back bedroom

& stairs

~ 100mm depth total

• Incl. ~80mm Kingspan

insulation

• 10mm of plasterboard

• 10mm gap/wood batons

for fixing

• Plaster

Baton

Gap

Kingspan

Plasterboard

Also had to insulate underside of the roof which formed part of ceiling

Before

After

During

After

Before After

All post insulation

Our house Neighbours

Suspended floor

Extension

Loft insulation

Note – pipe insulation

Additional ‘green’ improvements

Insulate under suspended floors

(drafts through floor boards & heat loss)

Kingspan

Increase the specification

of the double glazing

New condensing boiler (this is the old one…)

Green (sedum) roof on extension

- Slows down rain/water flow (reducing flooding) – esp if to soak-away

- Insulates and protects roof

- Intensive as you want – ours Seedum – just pull out saplings / feed 1/yr

- Looks good (textures, colours & flowers)