Related Advice
Related Guide
Latest posts
Responses (1)
- Discussions
- Walls and Roofs
- Insulation and soundproofing
- Rockwool
- Stucco
- Exterior insulation
- Foam insulation
- Rigid insulation
Related products


iFLEXFOAM | Resistant and flexible underslab insulation panel
Learn moreiFLEXFOAM Rigid Insulation by Isolofoam


EcoTouch PINK - Fiberglass Insulation for Insulating Walls and Attics from Owe…
Learn moreEcoTouch PINK FIBERGLAS Thermal Batt Insulation from Owens Corning


Engineered, prefabricated, Frost protected shallow foundation forms are a tried…
Learn moreGEO-Slab insulated Frost Protected Shallow Foundation Forms by Legalett


1 SYSTEM – 5 FUNCTIONS
Learn moreHeatlok Soya HFO – Air Barrier System


Cellulose fibre insulation Climatizer Plus
Learn moreClimatizer Plus Cellulose Insulation


Discover the highest performance lime formulated for Hemp concrete by Tradical
Learn moreTradical PF 70 Concrete Hemp Insulation


ROCKWOOL COMFORTBOARD 80 rigid mineral wool insulation board
Learn moreROCKWOOL COMFORTBOARD 80
Insulating the exterior walls of older homes has to be done carefully so you don’t trap moisture.
I would recommend you use some sort of mineral wool / rock wool insulation as they aren’t harmed by moisture and it will pass right through it. Walls need to be able to dry, so anytime you are adding to a wall its best to make sure that you only use products that are vapor permeable. Here is our page on Choosing the best rigid insulation,
you may also want to check out this page about choosing the right weather barrier
and How to install siding so walls can dry.