Internal Insulation and Solid Wall Insulation
Insulating your home
Insulating your home is the most cost effective way of improving the energy efficiency rating of your home.
Energy use in homes accounts for approximately 27% of the UK´s total carbon dioxide emissions and is subsequently a major area of focus in terms of reducing our impact on the environment.
There are approximately 25 million homes in the UK housing stock with over 80% of those predicted to be in existence past 2050. It is therefore clear that the Government´s targets for an 80% reduction in CO2 emissions by 2050 will not be possible without improving the energy efficiency of the existing housing stock.
Insulating a home is the most cost effective way of improving the energy efficiency rating of a home. Not only will it make your home warmer, quieter and more comfortable but it will also make it a more attractive investment for a prospective buyer.
In partnership with Knauf Insulation, Homeco Energy has developed a wide range of insulation solutions for the refurbishment of existing homes. The range of solutions includes solutions for both external solid walls as well as for internal walls.
- Reduced energy bills
- A warmer house in the winter and cooler in the summer
- A quieter house
- A more environmentally friendly house
Insulating your solid walls is one of the most effective ways of improving the energy efficiency of your home and in view of ever increasing energy bills it has never been more important to do so than now.
Installing wall insulation is a quick and simple process which could save you around £475 a year on your energy bills and significantly improve the thermal comfort of your home.
How much could you save?Type of solid wall insulation Saving per year Total cost including installation Carbon dioxide saved per year Internal Around £445 £5,500 to £8,500 1.8 tonnes External Around £475 £9,400 to £13,000 1.9 tonnes
Estimates based on insulating a gas-heated, semi-detached home with three bedrooms. Source: Energy Saving Trust 2012.
Installing solid wall insulation also has the added benefit of reducing the CO2 emissions associated with your home by approximately two tonnes per annum for the lifetime of the property.
What are the benefits and opportunities for improving the thermal performance of my solid walls?
- It’s an ideal time to upgrade the walls when re-decorating, renovating or replacing any plumbing or electrical work
- Energy saving, CO2 emissions reducing solution
- Installed cost may be subsidised
- Comfortable internal environment, quickly achieved
- Most cost effective solution to what is seen as a problematic application
- Simple, easy, quick to install proven system using readily available components
- Dry system so little or no mess
- Helping to protect the environment by installing an environmentally friendly insulation product with a high recycled content
- Adaptable solution
Why should we improve the thermal performance of the solid wall houses in our care?
- Cost effective
- Installed cost may be subsidised (landlords energy saving allowance)
- Reduce fuel poverty
- Makes property more attractive to prospective tenants
- Beneficial to tenants health
- Improved housing stock reduces condensation
- Improving thermal comfort for tenants
- Socially correct thing to do
- Improved energy efficiency is reflected in the Energy Performance Certificate (EPC) highlighting the benefits for prospective tenants
Internal wall insulation is done by fitting rigid insulation boards to the wall, or by building a stud wall filled in with mineral wool fibre.
External wall insulation involves fixing a layer of insulation material to the wall, then covering it with a special type of render (plasterwork) or cladding. The finish can be smooth, textured, painted, tiled, panelled, pebble-dashed, or finished with brick slips.
There are advantages and disadvantages to both.
Internal wall insulation:
- is generally cheaper to install than external wall insulation
- will slightly reduce the floor area of any rooms in which it is applied (the thickness of the insulation is around 100mm)
- is disruptive, but can be done room by room
- requires skirting boards, door frames and external fittings to be removed and reattached
- can make it hard to fix heavy items to inside walls – although special fixings are available
- needs any problems with penetrating or rising damp to be fixed first.
External wall insulation:
- can be applied without disruption to the household
- does not reduce the floor area of your home
- renews the appearance of outer walls
- improves weatherproofing and sound resistance.
- fills cracks and gaps in the brickwork, which will reduce draughts
- increases the life of your walls by protecting the brickwork
- reduces condensation on internal walls and can help prevent damp (but will not solve rising or penetration damp)
- is best installed at the same time as external refurbishment work to reduce the cost
- may need planning permission - check with your local council
- requires good access to the outer walls
- is not recommended if the outer walls are structurally unsound and cannot be repaired.