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I'm looking at installing rigid insulation the exterior of My Double brick 1880s

Gordon CASWELL Published: Dec. 13, 2019, 11:38 a.m.Last updated: Dec. 16, 2019, 4:19 p.m.

There is no space between bricks so we would like to add R20 to the exterior of the house also providing a vapour barrier. A previous owner had taking down the lath and plaster and installed two by twos with a bit of fiberglass insulation but no effective vapour barrier.

Any suggestions would be appreciated.

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