![]() at ceiling level, which creates a cold roof space.Fix in place new beads or moulding in the original style.Īround 25% of heat is lost through the roof of a building, so loft insulation is a popular and effective way to reduce heat loss.Fit the material using an adhesive (not nails or screws).Choose insulation that allows vapour permeability and is thin enough not to greatly alter how the door looks.Timber door frames perform well thermally, but panels are often made of thinner wood. ![]() fitting insulation to the inside of the door panels.draught proofing the door edges, letterbox and keyholes.Heat loss from doors can be much reduced by: In fact, this source of ventilation is good for the building.įind out more about how to repair and upgrade sash windows. fitting double glazed panes into the existing sashesĪ timber sash and case window in good condition will have very little air leakage and shouldn’t need draught proofing.adding secondary glazing and using other measures like blinds and shutters – to reduce heat loss by more than 75%.adding secondary glazing – to reduce heat loss by up to 63%.using a mixture of blinds, curtains and shutters – to reduce heat loss by as much as 62%.applying a thin layer of aerogel blanket to insulate shutters – to reduce heat loss by up to 60%.closing timber shutters – to reduce heat loss by up to 51%.drawing full length, lined and well-fitted curtains – to control draughts and reduce heat loss by up to 14%.draught proofing sashes – to reduce air leakage by up to 80%.You can improve thermal performance of windows by: ![]() But there are many ways to improve the thermal performance of a window – and without negatively affecting its fabric or appearance. Traditional single glazing isn’t a good insulator. Other measures are often cheaper and easier, for example, insulating and draught proofing windows and doors, and insulating roofs and floors. Insulating the walls should be last on your list when trying to improve the energy efficiency of a traditional building. Damp problems and other defects can also stop insulation from performing at its best.
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