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Pump cavity walls before external wall insulation EWI?

Jojo153 · 2017-12-15 18:44:17

Hi We are shortly getting external wall insulation on our house. The house is a mix of older solid walls and newer cavity walls. Would we have to pump the cavity walls before putting on the external wall insulation?

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15-12-2017 7:44pm

#1

Jojo153

Registered Users Posts: 6 ✭

Join Date: January 2017

Posts: 2

Hi
We are shortly getting external wall insulation on our house. The house is a mix of older solid walls and newer cavity walls. Would we have to pump the cavity walls before putting on the external wall insulation?

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#2 15-12-2017 11:01pm
BryanF

Moderators, Home & Garden Moderators Posts: 10,140 Mod ✭✭✭✭

Join Date: October 2010

Posts: 9844

Yes.

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