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Thread: Foam Insulation

  1. #26
    euston has flown

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    If you recon you can use sheets, these links might be of interest. I've been doing some preliminary research into building a cold room/pantry, Ive not approached or delt with this companies, but they do see insulating sheeting

    Global-Insulation
    www.pufoaminsulation.com
    pufoamdd.blogspot.com™
    ck-engineering

  2. #27
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    instead of sheets, you can stuff the cavity with the fibreglass 4" rolls

    probably cheaper

  3. #28
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    Quote Originally Posted by hazz View Post
    If you recon you can use sheets, these links might be of interest. I've been doing some preliminary research into building a cold room/pantry, Ive not approached or delt with this companies, but they do see insulating sheeting

    Global-Insulation
    www.pufoaminsulation.com
    pufoamdd.blogspot.com™
    ck-engineering

    When foam is used in coolroom they use polystyrene as there is no water adoration

    Also Marmite you need 40 m3 of foam sheet.
    I will find out from my supplier & let you know the name they give the foam sheet.

  4. #29
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    Quote Originally Posted by DrAndy
    what for, sound or heat?
    Heat.

  5. #30
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    Quote Originally Posted by DrAndy
    instead of sheets, you can stuff the cavity with the fibreglass 4" rolls
    I presume the fibreglass insulation is readily available? I don't remember seeing any at Global House yesterday.

  6. #31
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    Quote Originally Posted by Ratchaburi
    I will find out from my supplier & let you know the name they give the foam sheet.
    Many thanks

  7. #32
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    Quote Originally Posted by Marmite the Dog View Post
    Quote Originally Posted by DrAndy
    instead of sheets, you can stuff the cavity with the fibreglass 4" rolls
    I presume the fibreglass insulation is readily available? I don't remember seeing any at Global House yesterday.
    yes, easily found everywhere

    sold in largeish plastic covered rolls, in different thicknesses

  8. #33
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    If the cavity already exists i.e not a new build,you will have problems filling the void with methods previously mentioned,unless you use injectable foam.Polystyrene balls would be a preferable method.

  9. #34
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    Quote Originally Posted by Rigsby View Post
    If the cavity already exists i.e not a new build,you will have problems filling the void with methods previously mentioned,unless you use injectable foam.Polystyrene balls would be a preferable method.
    The only problem with injecting polystyrene balls is the pressure you need to
    stick the balls together.
    When they inject polystyrene with steam so you need 1000 of little hole to let the steam & pressure out

  10. #35
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    Quote Originally Posted by Rigsby
    If the cavity already exists i.e not a new build
    It's a timber framed house, with 100% access to the uncovered cavity.

  11. #36
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    Quote Originally Posted by Marmite the Dog View Post
    Quote Originally Posted by Rigsby
    If the cavity already exists i.e not a new build
    It's a timber framed house, with 100% access to the uncovered cavity.
    Let look at Marmite timber framed house & costs to insulate the wall cavity.
    Now the cavity is approx 4" in width that 100mm.
    Now he needs 400m2 so that would be 40m3 so the cheaps PU foam is liquid.
    Now the foam dentistry 40kgs m3.
    So Marmite will need for insulation 40m3 @40kgs p/m3 = 1600kgs @ 100baht
    = 160,000 Baht now that is the cheaps way

    Marmite are you turning your woodern framed house in to a ice box.

    I am still waiting for the infomation on the sheets

  12. #37
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    using the fibreglass rolls is the easiest way, esp if the cavity width is about the same as the roll width (otherwise you need a little bit of cutting)

    put it in, keep it in place with a staple here and there, or tape it across

    put bamboo board (for instance) over the wall

    result
    I have reported your post

  13. #38
    euston has flown

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    ^I have to say thats the way I would be tempted to go, particularly using the the fibre glass thats sealed in a foil bag. Its convent and won't burn.... unlike the rest of the house

  14. #39
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    true, that is a better insulator too although costs

  15. #40
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    You can get small pieces under the soffits ,recomend use small local person with a small broom handle type bat. Although hard to retro ft worth using reflctive rolls of metal.We did it and noticeably cooler than adjacent building without. Easily found in Homemart,Global etc.Pm if you need the brand name as I have an offcut lurking somewhere. Depending on roof shape need some ventilation and may wish to screen the last foot around the soffits to deter insects but allow circulation. Make sure screening securely mounted,as wildlife bats ,birds etc think your a hotel if in rural location like me. PS Home construction never really ends you move from top offtailgate party to maintainance crew within months
    Quote Originally Posted by Latindancer View Post
    I just want the chance to use a bigger porridge bowl.

  16. #41
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    Quote Originally Posted by DrAndy View Post
    Quote Originally Posted by Ceburat1
    What is the insulating quality of this foam? R value? Is it good for roof insulation? Do you have a link to the selling company? Thanks.
    use the fibreglass stuff sold in rolls for your roof; if you are building a roof, you can also lay the silver stuff under the tiles as well

    Where can I buy the fiberglass rolls?

  17. #42
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    For what it is worth. I have searched high and low for such a material. The only thing that comes close is a French man that sprays your ceilings. He ain't cheap.

    I am still looking...

  18. #43
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    It looks like I may go with the fibreglass - we'll see.

    The roof material had insulation built in, but I will still use sheet foam/fibreglass on the ceilings. I want the AC to be cooling my sweaty carcass down, not the outside world.

  19. #44
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    Quote Originally Posted by ralphlsasser
    Where can I buy the fiberglass rolls?
    Quote Originally Posted by hillbilly
    I have searched high and low for such a material
    we bought ours in Global House or Homepro, can't remember which

  20. #45
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    Quote Originally Posted by DrAndy View Post
    Quote Originally Posted by ralphlsasser
    Where can I buy the fiberglass rolls?
    Quote Originally Posted by hillbilly
    I have searched high and low for such a material
    we bought ours in Global House or Homepro, can't remember which
    I have seen the fibreglass rolls at Globle.

    I have looked at polystyrene sheet prices
    1200mm X 600mm X 25mm cost 25 Baht
    If you use only 25 mm thick sheets then you need.
    555.5 sheets cost 13,887.50 Bath
    or if you use 2 X 25mm thick
    1111 sheets 27,775.00 Baht
    If you what to go for 100mm thick 55,550.00 Bath
    For the polystyrene foam I think that I will do my roof linning.



    I still waitting for information polyurethane

  21. #46
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    Quote Originally Posted by Ratchaburi
    I have looked at polystyrene sheet prices 1200mm X 600mm X 25mm cost 25 Baht If you use only 25 mm thick sheets then you need. 555.5 sheets cost 13,887.50 Bath or if you use 2 X 25mm thick 1111 sheets 27,775.00 Baht If you what to go for 100mm thick 55,550.00 Bath For the polystyrene foam I think that I will do my roof linning.
    I'm sure there's a 100mm thick sheet out there somewhere...

  22. #47
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    Quote Originally Posted by Marmite the Dog View Post
    Quote Originally Posted by Ratchaburi
    I have looked at polystyrene sheet prices 1200mm X 600mm X 25mm cost 25 Baht If you use only 25 mm thick sheets then you need. 555.5 sheets cost 13,887.50 Bath or if you use 2 X 25mm thick 1111 sheets 27,775.00 Baht If you what to go for 100mm thick 55,550.00 Bath For the polystyrene foam I think that I will do my roof linning.
    I'm sure there's a 100mm thick sheet out there somewhere...
    This was given to me from a local company they cut 25mm thick sheet.
    I ask them 100mm they told me 25mm.
    Looking at the 25mm sheets is easier to handle
    If buy polystrene in a block 1200mm X 600mm 6000mm. cost 6,000 baht
    Now I you cut this block into 240 sheets 1200mm X 600mm 25mm cost 6,000 baht

    The cost of Polystyrene is in m3 if they cut it is the same price

    I will make this more easy for you marmite Cutting of the foam is free.

    on 07/02/2007 purchace 4 blocks 1200mm X 600mm X 6000mm I payed 24,000 Baht.

    That mean that after 5 years the price is the same & cutting is still free

  23. #48
    euston has flown

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    One of the consernes i have with polystyrene is that in case of fire; not only does it have this habit of burning, melting and rain little balls of hot burning plastic onto whatever is beneith it.

  24. #49
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    Quote Originally Posted by hazz View Post
    One of the consernes i have with polystyrene is that in case of fire; not only does it have this habit of burning, melting and rain little balls of hot burning plastic onto whatever is beneith it.
    Well a woodern house will burn to don;t you tink

  25. #50
    euston has flown

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    ^ Idealy want a house that has a reasonable time lage between a fire starting and the house becoming an inferno to give you time to wake up and escape. Wood does burn, but it doesn't burn relasing hung amounts a thick toxic smoke, melting and raining down burning balls of moltern wood to start secondary fires. You are comparing chalk and cheese and saying they the same.

    But then if the foam is enclosed within something that is relitvly fire resistant such as steel, gypsum, concreate, then its not going to get the air it needs to burn and thats how ive seen it used in the last 20 years or so.

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