Newhall: A new lease of life vol.2

Newhall: A new lease of life vol.2

The problem?

How to improve the thermal performance of a 17th century stone building to make it  fit for modern office accommodation?

The Grade 2 listed Newhall is the 17th-century heart of the Newhall Business Park in Bradford. Once classified as 'At Risk', it has now been sympathetically refurbished into modern offices in consultation with English Heritage. Constructed from Pennine gritstone the building has fine detailing, with roof finials, mullion and transom windows.

TLX Gold had already been used for the underlay/roof insulation over the boarded roof, (being simply draped over a 50mm x 50mm counter batten) - (view the case study here), so that the exposed beams could be seen internally. For the wall insulation, it was desirable to have a thin insulation that would not cause a problem at the feature windows, and so it was decided to use a single layer of TLX Silver.

By fitting TLX Silver over a 25mm batten an unventilated air gap is created, and when the plasterboard is fitted there is a second one. These serve to allow heat to be reflected back into the room, yet also keep it cooler in summer.

TLX Silver multifoil used in walls

The result is a period building which appears unchanged externally, provides the comfort to which 21st century workers expect, and preserves the internal period detail. Newhall has a new lease of life – with a little help from a multifoil to provide increased thermal performance.

The solution:

BBA approved TLX Silver 2-in-1 insulating vapour barrier:

  • Heat-reflecting unventilated air gap - also acts as a service cavity Vapour barrier
  • Provides a U-value of 0.47 W/m2K when used by itself

 

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