PIR insulation with an air gap or not
- Thread starter darkkent8
- Start date
10mm cavities? Are you sure?
If you're going to adhere insulation directly to the inside walls then you risk trapping damp inside the brickwork where previously it would evaporate and be ventilated away.
I have had great results by 'waterproofing' the outer wall. Not going to suggest any particular product, however a coating of Stormshield to bare brickwork has greatly alleviated any trapped damp problem by stopping damp penetrating the outer leaf. It can be applied directly to brickwork or to render and, like most other products of this kind, dries clear. On throwing a cupful of water at a treated wall you will see that the water simply runs off.
If you're going to adhere insulation directly to the inside walls then you risk trapping damp inside the brickwork where previously it would evaporate and be ventilated away.
I have had great results by 'waterproofing' the outer wall. Not going to suggest any particular product, however a coating of Stormshield to bare brickwork has greatly alleviated any trapped damp problem by stopping damp penetrating the outer leaf. It can be applied directly to brickwork or to render and, like most other products of this kind, dries clear. On throwing a cupful of water at a treated wall you will see that the water simply runs off.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
