Replacing the glass within an existing window frame with more efficient glazing (e.g. slimline double glazed units, vacuum glazed units).

Monitoring & feedback recommended: Yes

ADVANTAGES

Replacing single glazing with high performance glazing (low-e & gas fill) will significantly reduce the heat loss through whole window by >30% depending on glazing type

CONCERNS & ACTIONS

TECHNICAL (4)

Sufficient ventilation?
Overheating
Monitoring and feedback required
Personal capacity/Right opportunity

HERITAGE (4)

Detail retains character?
Listed building consent
Planning consent within conservation area
Planning consent outside conservation area

ENERGY (3)

Actual U-value?
Rebound effects
Product quality

RELATED MEASURES

FABRIC (14)

Cavity Wall Insulation
External Wall insulation
Internal Wall insulation
Frame infill insulation
Window draughtproofing
Window refurbishment
Secondary glazing
Window Shutters Refurbishment
Window External Shading
Door draughtproofing
High performance doors
Door refurbishment
Chimney blocking
Reduced air flow

SERVICES (9)

Heating controls (for wet and warm air systems)
Background ventilators and intermittent extract fans
Passive stack ventilation
Continuous mechanical extract ventilation
Continuous mechanical supply and extract ventilation with heat recovery
Passive stack ventilation with heat recovery
Passive stack ventilation with demand control ventilation
Continuous mechanical extract ventilation with demand control ventilation
Continuous mechanical supply and extract ventilation with heat recovery and with demand control ventilation

BEHAVIOUR (3)

Provision of simple and clear information
Improving User interest and involvement
Maintenance

Guidance Wheel

To explore and use the Guidance Wheel on a specific building click here

CASE STUDIES (1)

10 Hampton Road

Conversion of methodist chapel
Isabel Carmona

MEASURE: Energy efficient glazing