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SOLID WALLS

 

About 35% of heat is lost through walls 

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Look at the pattern of the bricks on the house as this can show how the wall has been built.

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Internal wall insulation

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ls done by fitting rigid insulation boards to the wall, or by building a stud wall filled in with insulation material such as mineral wool fibre.  Can be done room by room when redecorating or renovating.

  • 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).

  • Can be quite disruptive but can be done room by room.

  • Requires skirting boards and external fittings to be removed and reattached.

  • Cannot be done before fixing any problems with penetrating or rising damp.

 

External wall insulation

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External insulation will also cost less if you fit it when you’re having other work done to the outside. If you’re having a new roof, or painting the windows, or even having solar PV panels fitted, then you will probably have scaffolding up already, which can save a bit on the costs. If your walls need repointing or other repair work, it’s worth getting a quote for a complete refurbishment including insulation – it will probably work out cheaper than doing the two things separately.  Costs are in the region of £170/200m2.

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The finish can be smooth, textured, painted, tiled, panelled, pebble-dashed, or finished with brick slips.

  • Can be applied without disruption to the household does not reduce the floor area of your home.

  • Fills cracks and gaps in the brickwork, which will reduce draughts, as well as renew the appearance.

  • Increases the lifespan of your walls and improve weatherproofing and sound resistance. 

  • Reduces condensation on internal walls and can help prevent damp (but will not solve rising or penetration damp).

  • Best installed at the same time as external refurbishment work to reduce the cost.

  • May need planning permission – check with your local council.

  • Not recommended if the outer walls are structurally unsound and cannot be repaired.

 

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