4 veljače, 2023

Montažne i drvene kuće

Internetski vodič za investitore i kupce montažnih i drvenih kuća

CLT (X-LAM) ILI OKVIR – što je najbolji izbor?

Foto: Ilustracija sa stranice Studio DOMUS -Pula

CLT (X-LAM) ILI OKVIR, ŠTO JE NAJBOLJI IZBOR?

UPIT ČITATELJA: Poštovani arhitekte , već neko vrijeme pratim vaš blog i mislim da sam naučio puno stvari, ali još uvijek sam u nedoumici koji sustav gradnje odabrati. Nikada nisam našao jasno mišljenje o tome koja je struktura bolja (x-lam ili okvir)….

ODGOVOR EKSPERTA: Nakon više od sedam godina koliko sam odlučio objaviti svoje mišljenje o drvenim kućama, često sam se pitao koja su najčešća pitanja čitatelja bloga i nisam se posebno iznenadio kada sam otkrio da je najčešća tema vezana uz izbor “najboljeg” sustava gradnje, odnosno dilema: x-lam ili okvir ?
…U godinama profesionalnog djelovanja imao sam priliku projektirati i graditi zgrade za svoje klijente koristeći oba sustava gradnje, koje smatram učinkovitima sa svih točaka gledišta.
Statičko/antiseizmičko ponašanje i energetska svojstva vrlo su slični, čime su oba rješenja prikladna za izgradnju sigurnih i toplinski izoliranih zgrada. Čak su i cijene za javnost vrlo slične.
Prava razlika između ova dva rješenja leži u metodama sastavljanja zidova , budući da gradilišta koja koriste x-lam ploče u svakom pogledu uključuju izgradnju na licu mjesta.
Zapravo, prefabrikacija je ograničena na proizvodnju prethodno izrezanog i numeriranog materijala, koji će biti suho sastavljen izravno na gradilištu. Gradilište, na neki način, slično tradicionalnom gradilištu od opeke i betona, s velikim prostorom za modifikacije i varijacije i značajnom fleksibilnošću dizajna.
Okvirni zidovi u potpunosti spadaju u definiciju “montažnih kuća”, budući da se njihova izrada gotovo u potpunosti odvija u tvornici. Zidovi koji stignu na gradilište, osim nosive konstrukcije, gotovo uvijek uključuju i zatvorne ploče, unutarnju toplinsku izolaciju stupova, gipsane ploče, već djelomično ožbukane vanjske obloge, armaturu, grilje, predpozicije. električnog sustava (cijevi i prazne kutije). Zbog toga je montaža nedovršene montažne kuće izuzetno brza i traje jedva jedan tjedan.
…Male razlike između dvaju sustava gradnje (bolje ponašanje x-lam zidova ljeti, uz manju vrijednost propusnosti zimi za okvirne zidove) mogu se nadoknaditi pravilnim izborom izolacijskih ploča (materijala, debljine i gustoće).

Paola Crivellara ,
BIOARHITEKT – ekspert za niskoenergetske drvene zgrade
Izvornik: https://caseprefabbricateinlegno.it/
Poveznica na zvorni članak: OVDJE

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