{"id":6964,"date":"2021-08-08T10:48:38","date_gmt":"2021-08-08T08:48:38","guid":{"rendered":"https:\/\/era.archi\/?p=6964"},"modified":"2023-03-06T07:52:39","modified_gmt":"2023-03-06T06:52:39","slug":"finestres-passive-casa-passiva","status":"publish","type":"post","link":"https:\/\/era.archi\/ca\/finestres-passive-casa-passiva\/","title":{"rendered":"Finestres passive Casa Passiva"},"content":{"rendered":"

Quines finestres instal\u00b7lar per a la teva Casa Passiva?<\/strong><\/p>\n

En aquest post ‘Finestres passive Casa Passiva’, t’explico les 3 sistemes de finestres passive que pots instal\u00b7lar a casa teva passiva, els seus pros i els seus contres.<\/span><\/p>\n

En dir, t’explico els 3 materials de finestres que recomanem per a Passive House.<\/span><\/p>\n

 <\/p>\n

Per si encara no ens coneixes, em presento, s\u00f3c Esther Rovira, fundadora d’ERA architects, arquitecta a Barcelona i passive house designer per a reformes sostenibles, reformes passives, cases passives, cases eficients i cases positives a Barcelona i Catalunya.<\/span><\/p>\n

Espero que t’ajudi!<\/span><\/p>\n

 <\/p>\n

\u00a0<\/span><\/p>\n

 <\/p>\n

1) Alumini<\/strong><\/p>\n

Tot i que hi ha gran varietat de finestres d’alumini amb trencament de pont t\u00e8rmic i fins i tot certificades per a Passive House; aquesta opci\u00f3 no m’acaba de conv\u00e8ncer (per ara).<\/span><\/p>\n

L’alumini \u00e9s un material amb alta transmit\u00e0ncia t\u00e8rmica (\u00e9s a dir, que transmet altament la temperatura de fora a dins i al rev\u00e9s).<\/span><\/p>\n

A les nostres Cases Passives intentem separar al m\u00e0xim la temperatura de fora i la de dins i l’alumini de manera natural no ens ofereix aquesta qualitat.<\/span><\/p>\n

Perqu\u00e8 una fusteria d’alumini compleixi els nivells d’a\u00efllament que necessita una casa passive, s’hi afegeixen cambres, escumes o gomes a\u00efllants.<\/span><\/p>\n

Aix\u00f2 fa augmentar les dimensions de la fusteria a m\u00ednims de 110-119mm.<\/span><\/p>\n

 <\/p>\n

2) Fibra de vidre<\/strong><\/p>\n

T\u00e8rmicament \u00e9s millor que l’alumini, per\u00f2 ni de lluny s’acosta a les prestacions t\u00e8rmiques del PVC.<\/span><\/p>\n

La fibra de vidre \u00e9s gaireb\u00e9 10 vegades m\u00e9s forta que el PVC i molt m\u00e9s estable (amb menys expansi\u00f3 i contracci\u00f3).<\/span><\/p>\n

Solen ser amples (105mm en abatible inferior) i t\u00e9 una durabilitat molt alta.<\/span><\/p>\n

Hi ha \u00fanicament 8 fabricants d’aquestes fusteries al m\u00f3n i 6 estan ubicades a la Xina.<\/span><\/p>\n

 <\/p>\n

3) PVC<\/strong><\/p>\n

Ara mateix el material amb millors prestacions t\u00e8rmiques i relaci\u00f3 qualitat-preu s\u00f3n les finestres de PVC.<\/span><\/p>\n

\u00c9s a dir, \u00e9s la teva opci\u00f3 m\u00e9s econ\u00f2mica i t\u00e8rmicament a\u00efllant.<\/span><\/p>\n

Tot i aix\u00ed, has de saber que \u00e9s un material fet amb grans fusteries (101mm en abatible inferior) i premarcs que no permet grans obertures.<\/span><\/p>\n

Tamb\u00e9 \u00e9s important recalcar que el PVC \u00e9s Policlorur de Vinil i com tots els pol\u00edmers, la base \u00e9s el petroli (normalment en m\u00e9s del 40%!).<\/span><\/p>\n

 <\/p>\n

4) Fusta<\/strong><\/p>\n

\u00c9s l’opci\u00f3 m\u00e9s coherent, ja que la fusta de forma natural \u00e9s a\u00efllant.<\/span><\/p>\n

Tot i que solen tenir gruixos gruixuts (117-121 mm en abatible inferior), avui en dia pots trobar models de fusteries molt minimal (98mm en abatible inferior).<\/span><\/p>\n

Els \u00fanics dos inconvenients s\u00f3n: el preu i el manteniment.<\/span><\/p>\n

El manteniment el pots evitar amb la fusteria mixta de fusta amb alumini per fora i fusta per dins.<\/span><\/p>\n

Si les finestres de fusta normal s\u00f3n cares, les mixtes s\u00f3n encara m\u00e9s inaccessibles.<\/span><\/p>\n

 <\/p>\n

\u00a0<\/span><\/p>\n

 <\/p>\n

La meva recomanaci\u00f3 professional:<\/strong><\/p>\n

Al nostre estudi d’Arquitectura a Barcelona recomanem sempre les fusteries de fusta o PVC.<\/span><\/p>\n

Sin\u00f3 tens pressupost per a fusta i est\u00e0s en una ciutat de clima c\u00e0lid-temperat, directament demana pressupost de finestres de PVC amb doble vidre sota emissiu passiu.<\/span><\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

Espero que aquesta info t’ajudi en la teva\u00a0aventura.
\nFins al proper post!<\/p>\n

 <\/p>\n

Esther Rovira Raurell<\/a><\/span><\/div>\n
Arquitecta col.legiada a Barcelona<\/a>\u00a0#44234-8<\/span><\/div>\n
Passive House Designer<\/a><\/span><\/div>\n
Afiliada a la International Passive House Association<\/a><\/span><\/div>\n
Fundadora d’ERA architects<\/a>\u00a0<\/span><\/div>\n
<\/div>\n

P.S. Vols rebre consells sostenibles GRATIS? S\u00ed, vull!<\/a> <\/strong><\/span>o segueix-nos a Instagram<\/a>,\u00a0Pinterest<\/a>,\u00a0Twitter<\/a>\u00a0y\u00a0Facebook<\/a><\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Quines finestres instal\u00b7lar per a la teva Casa Passiva? 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