Fergal McGirl - Conservation architect dublin

insulating a historic roof from above

by fmgarchitects.


A house on Waterloo Road, Dublin 4 gets re-roofed for the first time since it was constructed c1850 supported by a BHIS 2023 grant. The opportunity was taken during the works to insulate the roof from above without interfering with sloped areas of lath & plaster ceilings below. Thermo Hemp Combi Jute was used which works in well above the uneven key of the lath & plaster ceilings and between uneven rafters. A 35mm Gutex wood fibre board was applied to the hung-slate clad dormer cheeks which provided a degree of thermal upgrade without changing their character. 

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