Cavity Wall Insulation

[Tlandcruiser]

I’ve just booked an appointment for EON to conduct a survey on my 1960s bungalow. Should I be concerned about cavity wall insulation causing damp issues? I remember reading a lot of issues a few years back.

[Tlandcruiser]

Thank you for all your input. Eon came round today and have quoted £644 inc vat. They charge on property type and not m2.

[Tlandcruiser]

Bit of a bump, I never got round to getting the cavity walls insulated due to carrying out other house improvements.

Roll on to the green grant, a company called AM energy group is quoting tomorrow and they will use fibre wool blown in. Will this still be ok? Or should I use a company that will use the beads?

[Tlandcruiser]

Bullet-Proof_Biscuit said:

No fibre wool probably won't be ok.

The product is;

Knauf Insulation Supafil 40 Cavity Wall Insulation , if that makes a difference?

[Tlandcruiser]

How do they fill the cavity to prevent the insulation from
Blocking my air vents to my floor. I imagine in the 1960s they fitted the vent brick on the external skin, and then just laid a vent brick on the internal skin opposite the external vent. I can’t image they fitted ducts between the vent bricks in the 60s?