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100mm insulation

jasushaw · 2020-08-11 17:49:39

Hi I have insulated my house with 100mm cavity insulation in a timber frame house and made air tight. Should I just slab with 12mm board or will I need 50mm insulated board. I know the new standard is 150mm of insulation but I don't like stuffy temperatures in houses. Will a 100mm be ok?

11-08-2020 6:49pm

#1

jasushaw

Registered Users Posts: 151 ✭✭

Join Date: February 2009

Posts: 78

Hi
I have insulated my house with 100mm cavity insulation in a timber frame house and made air tight. Should I just slab with 12mm board or will I need 50mm insulated board. I know the new standard is 150mm of insulation but I don't like stuffy temperatures in houses.

Will a 100mm be ok?

0

Comments

#2 11-08-2020 7:04pm

Calahonda52

Registered Users, Registered Users 2 Posts: 12,593 ✭✭✭✭

Join Date: January 2015

Posts: 11759

whats your ventilation strategy which is the key to stuffiness?
.
airtightness and insulation are two different issues

How do you know it is airtight?

Is this a self build?

“I can’t pay my staff or mortgage with instagram likes”.

0
#3 11-08-2020 7:11pm

sydthebeat

Subscribers Posts: 41,860 ✭✭✭✭

Join Date: November 2007

Posts: 40771

jasushaw wrote: »

Hi
I have insulated my house with 100mm cavity insulation in a timber frame house and made air tight. Should I just slab with 12mm board or will I need 50mm insulated board. I know the new standard is 150mm of insulation but I don't like stuffy temperatures in houses.

Will a 100mm be ok?

Do you know what u value you need to meet to be building reg compliant??

0