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attic insulation improve upstairs heating

  • 12-12-2019 10:41am
    #1
    homer1982
    Registered Users Posts: 262 ✭✭


    Hi All

    I've noticed that our upstairs is not as warm as we would like when the heating is on. We are going to have a plumber call in the next few days to install a magnaflow, clean the system and re-balance the system as we found that some of the rads upstairs have to be bleed once or twice a week.

    I am looking at adding more rolled insulation in the attic, we already have the ecose insulation up there, with 150mm in the joists and 150mm going the other direction over that so 300mm altogether.

    Would there be any benefit to adding more say another 150mm over the existing insulation and if so can anyone recommend a type of rolled insulation please?


Comments

  • #2
    listermint
    Registered Users, Registered Users 2 Posts: 34,105 ✭✭✭✭listermint


    homer1982 wrote: »
    Hi All

    I've noticed that our upstairs is not as warm as we would like when the heating is on. We are going to have a plumber call in the next few days to install a magnaflow, clean the system and re-balance the system as we found that some of the rads upstairs have to be bleed once or twice a week.

    I am looking at adding more rolled insulation in the attic, we already have the ecose insulation up there, with 150mm in the joists and 150mm going the other direction over that so 300mm altogether.

    Would there be any benefit to adding more say another 150mm over the existing insulation and if so can anyone recommend a type of rolled insulation please?

    300 mm is a very sound amount. What you have to look at (its a must) is airtightness. alot of people completely forget about this, and in many aspects its more important than increasing the depth of insulation, for example you can get away with nominal depth of insulation if the airtightness is sound.

    Often over looked (including by me when i was renovating some rooms, im going back now doing a more fuller review)

    Attic close rooms are the worst for air behind the plasterboards bleeding out into skirting and sockets (draughts) Also attic stairs can be a open hole of heat loss. Window frames and the window boards beneath them.

    Simply removing skirting putting in air tight tape and replacing same skirting can do huge things to a room.


  • #3
    Idbatterim
    Registered Users, Registered Users 2 Posts: 17,853 ✭✭✭✭Idbatterim


    homer1982 wrote: »
    Hi All

    I've noticed that our upstairs is not as warm as we would like when the heating is on. We are going to have a plumber call in the next few days to install a magnaflow, clean the system and re-balance the system as we found that some of the rads upstairs have to be bleed once or twice a week.

    I am looking at adding more rolled insulation in the attic, we already have the ecose insulation up there, with 150mm in the joists and 150mm going the other direction over that so 300mm altogether.

    Would there be any benefit to adding more say another 150mm over the existing insulation and if so can anyone recommend a type of rolled insulation please?
    This might not apply to your situation, but drsughts and excessive vents are the worst culprits by far with heat loss ! What sort of vents do the rooms have ?


  • #4
    homer1982
    Registered Users Posts: 262 ✭✭homer1982


    We have vents on all of the windows, except the bathrooms and they have extractor fans.


  • #5
    GreeBo
    Registered Users, Registered Users 2 Posts: 27,253 ✭✭✭✭GreeBo


    homer1982 wrote: »
    Hi All

    I've noticed that our upstairs is not as warm as we would like when the heating is on. We are going to have a plumber call in the next few days to install a magnaflow, clean the system and re-balance the system as we found that some of the rads upstairs have to be bleed once or twice a week.

    I am looking at adding more rolled insulation in the attic, we already have the ecose insulation up there, with 150mm in the joists and 150mm going the other direction over that so 300mm altogether.

    Would there be any benefit to adding more say another 150mm over the existing insulation and if so can anyone recommend a type of rolled insulation please?

    Rads having to be bled weekly is more indicative of a leak than an imbalance.

    Do you have a closed loop or a open/gravity fed heating system?
    Your system shouldnt be losing water at that rate.


  • #6
    homer1982
    Registered Users Posts: 262 ✭✭homer1982


    We have a closed loop, I have a plumber coming in the next few days or early next week to look at that and I hope to be with him helping so I can have a better understanding and be able to sort these issues in the future myself.

    Thanks to all for the replies so far by the way, really appreciate the help.


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  • #7
    Calahonda52
    Registered Users, Registered Users 2 Posts: 12,564 ✭✭✭✭Calahonda52


    What is the house age/ construction type?

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



  • #8
    GreeBo
    Registered Users, Registered Users 2 Posts: 27,253 ✭✭✭✭GreeBo


    homer1982 wrote: »
    We have a closed loop, I have a plumber coming in the next few days or early next week to look at that and I hope to be with him helping so I can have a better understanding and be able to sort these issues in the future myself.

    Thanks to all for the replies so far by the way, really appreciate the help.

    What pressure does the boiler say and whats does the gauge on the closed loop say?


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