Care este cel mai bun material pentru izolatie: polistiren sau vata minerala?

20
1899

Care este cel mai bun material pentru izolatie? Iata o intrebare pe care si-o pun nu doar constructorii, ci si toti cei care doresc sa izoleze termic si fonic o locuinta sau un imobil. In cele ce urmeaza vom realiza o comparatie intre polistiren si vata minerala, cele mai utilizate materiale termoizolate.

Polistiren – Avantaje si dezavantaje

Polistirenul are o rata mica de absorbtie, astfel ca, desi este expus umezelii si apei, nu isi pierde proprietatile izolatoare.
Cu toate ca este un material artificial obtinut prin procesarea petrolului, nu contine substante ce pot fi daunatoare mediului. Polistirenul este foarte usor si are proprietati mecanice bune. Totusi, capacitatea de izolare nu este neaparat mare, iar coeficientul de absorbtie al vaporilor este scazut. Temperaturile mai mari de +80C il pot distruge, la fel si majoritatea solventilor organici. Varietatile de polistiren CS (10)70 sau CS (10)80 satisfac nevoile standardului EN 13163 si pot fi folosite in cadrul sistemelor de incalzire.

Este un material ignifug, asa ca nu reprezinta un risc in caz de incendiu.

Vata minerala – Avantaje si dezavantaje

Vata minerala este rezistenta la temperaturi inalta. Realizata din piatra naturala, incepe sa se topeasca doar dupa 2 ore dupa expunerea la temperaturi mai mari de 1000 grade Celsius. Rezistenta termica a liantilor si a agentilor hidrofobi este mai mica.

Vata minerala este un material ignifug. Insa este si foarte rezistenta la majoritatea substantelor chimice. Coeficientul de absorbtie a vaporilor este foarte ridicat, permitand trecerea libera a vaporilor de apa (apa din atmosfera este absorbita mult mai greu).

Durabilitatea este una relativ scazuta. Totusi, datorita structurii fibroase, vata minerala are capacitati bune de izolare fonica, satisfacand standardele EN 13162 pentru gama CS (10)40.

Polistiren sau vata minerala?

Ce material alegem pentru izolatie? Depinde de natura cladirii ce urmeaza a fi izolata. Astfel, este recomandat sa utilizam vata minerala pentru structuri inalte, spatii pentru birouri, scoli, spitale, cladiri pentru evenimente, uzine de tratare a apei, piscine publice, bucatarii catering, spalatorii de masini, acolo unde nivelul de umiditate este unul ridicat.  Aceste sisteme hidroizolatoare trebuie instalate in interior, deoarece vata minerala este vulnerabila la condensul vaporilor de apa, fapt ce ii poate reduce din eficienta izolarii termice.

Polistirenul ramane cea mai ieftina si eficienta metoda de izolare pentru locuinte (case, blocuri). Este un material sigur si rapid de instalat, asigurand o buna izolatie termica si fonica.


Warning: A non-numeric value encountered in /home/wwwalpinistiutil/public_html/wp-content/themes/Newspaper/Newspaper/includes/wp_booster/td_block.php on line 353

20 COMENTARII

  1. Wow, awesome weblog format! How lengthy have you ever been running a blog for?

    you made blogging look easy. The entire glance of your site
    is excellent, as well as the content! You can see similar:
    sklep and here sklep online

  2. What’s up i am kavin, its my first time to commenting anywhere, when i read
    this post i thought i could also create comment due to this brilliant post.
    I saw similar here: sklep online and also here:
    sklep internetowy

  3. Hmm is anyone else encountering problems with the images on this
    blog loading? I’m trying to determine if its a problem
    on my end or if it’s the blog. Any responses would be greatly appreciated.
    I saw similar here: Dobry sklep

  4. Hey! Do you know if they make any plugins to help with Search Engine Optimization? I’m trying
    to get my blog to rank for some targeted keywords but I’m not seeing very good
    gains. If you know of any please share. Kudos! You can read similar
    article here: Sklep online

  5. What’s Taking place i am new to this, I stumbled upon this I’ve discovered It absolutely helpful and it has helped me out loads.
    I hope to contribute & aid other users like
    its aided me. Good job.

  6. I think this is one of the most vital information for me.
    And i’m glad reading your article. But want to remark on few general
    things, The website style is wonderful, the articles is really
    nice : D. Good job, cheers

  7. I do not even know the way I ended up right here, but I believed this post was good.
    I do not recognize who you are but certainly you are going to a well-known blogger in the event you are not already.
    Cheers!

  8. Howdy! Do you know if they make any plugins to assist with
    SEO? I’m trying to get my blog to rank for some targeted keywords but I’m not seeing very good gains.
    If you know of any please share. Many thanks!

    I saw similar article here: Backlinks List

  9. We stumbled over here different page and thought I may as well check things out.
    I like what I see so now i am following you. Look forward to checking out your web page for a second time.

  10. Wow, incredible weblog structure! How long have you ever been blogging for?
    you make running a blog glance easy. The entire look of your website is
    magnificent, let alone the content material! I saw similar here prev next and that was wrote by Wes06.

  11. Wow, awesome weblog layout! How lengthy have
    you ever been running a blog for? you made running a blog glance easy.
    The full glance of your site is excellent, as neatly as the content!
    I read similar here prev next and it’s was wrote by Zack61.

LĂSAȚI UN MESAJ