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Insulation

  • 10-01-2008 9:46am
    #1
    davederave
    Closed Accounts Posts: 2 ✭


    Hi,

    Just joined the board and these are my first questions. I am sure they are just the first of many!

    I plan to do some refurb work on my house this year and I have a query re insulation. My house is a three bed semi that was built about 40 years ago and can be pretty cold.

    Q.1. The house has wooden floors with a subfloor 18-20" beneath the floor boards. Would it be common practice to insulate below the floor boards.

    Q.2. Does anybody have experience/opinions on the benefit of getting the pumped cavity wall insulation.

    Q.3. I am going to reinsulate my attic and plan to create a floored/walled storage space. Does it make sense to insulate the floor and also insulate the roof between the rafters.

    Dave


Comments

  • #2
    250882
    Closed Accounts Posts: 206 ✭✭250882


    Theres a post above there where I have explained the process of insulating an attic conversion but BE WARNED, Attic conversion is a nasty issue planning wise, be sure that you get some professional advice if you intend to put habitable rooms up there, there will need to be escape windows etc.. If you were to insulate below the floors I would think sheeps wool insulation would be best(should still allow ventilation but preforms as well wet as dry) and just between the joists. Cavity fill insulation should be a last resort if your house is on an exposed site, otherwise it could be considered(personally I think its dodgy bridging the cavity in a blockwork wall)


  • #3
    smashey
    Registered Users, Registered Users 2 Posts: 21,676 ✭✭✭✭smashey


    davederave wrote: »
    Hi,

    Just joined the board and these are my first questions. I am sure they are just the first of many!

    I plan to do some refurb work on my house this year and I have a query re insulation. My house is a three bed semi that was built about 40 years ago and can be pretty cold.

    Q.1. The house has wooden floors with a subfloor 18-20" beneath the floor boards. Would it be common practice to insulate below the floor boards.

    Q.2. Does anybody have experience/opinions on the benefit of getting the pumped cavity wall insulation.

    Q.3. I am going to reinsulate my attic and plan to create a floored/walled storage space. Does it make sense to insulate the floor and also insulate the roof between the rafters.

    Dave
    250882 wrote: »
    Theres a post above there where I have explained the process of insulating an attic conversion but BE WARNED, Attic conversion is a nasty issue planning wise, be sure that you get some professional advice if you intend to put habitable rooms up there, there will need to be escape windows etc.. If you were to insulate below the floors I would think sheeps wool insulation would be best(should still allow ventilation but preforms as well wet as dry) and just between the joists. Cavity fill insulation should be a last resort if your house is on an exposed site, otherwise it could be considered(personally I think its dodgy bridging the cavity in a blockwork wall)
    He didn't say anything about habitable rooms in the attic. Just storage.


  • #4
    davederave
    Closed Accounts Posts: 2 ✭davederave


    THanks for the tips.

    What about the roof area insulation in the attic. Even if the attic was not converted for storage would it make sense to insulate it. Would that help with heat retention in the house?

    Dave


  • #5
    250882
    Closed Accounts Posts: 206 ✭✭250882


    definately!!, I lived in a rented single storey apartment in Waterford, it was really cold so one day i went into the attic to see what was up there and there was no insulation at all, just a roll of old carpet, i rolled it out above the living room and it made a huge difference. If you are using the attic as storage make sure that your ceiling joists are sufficent to hold the weight.


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