expanding foam

I'd like to insulate my concrete garage and I'm not sure if I need more insulation? Internally I plan to: 1. Paint the concrete slabs and roof with anti condensation concrete paint 2. Use DIY spray foam insulation kit on the ceiling and walls (...

I am a landlord and my tenants experienced issues with damp on the inside of a bay window and it didn't seem like there was an issue with condensation or ventilation (as is usually the case). I noticed a crack where the bay window render meets the brickwork on the outside of the house and...