Alberti, Leon Battista, L' architettura

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            <s xml:id="echoid-s3637" xml:space="preserve">
              <pb o="80" file="084" n="84" rhead="DELLA ARCHITETTVRA"/>
            s’aprino l’una dall’altra. </s>
            <s xml:id="echoid-s3638" xml:space="preserve">Et per queſta magagna non ſi puo dire quanto il mu
              <lb/>
            ro indebolito, diuenti pronto al rouinare. </s>
            <s xml:id="echoid-s3639" xml:space="preserve">Il Muro groſſo, non ha biſogno di
              <lb/>
            armadure, o ponti, concioſia che per la ſua larghezza, dà occaſione a Maeſtri
              <lb/>
            da poterui ſtare ſopra.</s>
            <s xml:id="echoid-s3640" xml:space="preserve"/>
          </p>
          <note position="left" xml:space="preserve">5</note>
        </div>
        <div xml:id="echoid-div94" type="section" level="1" n="45">
          <head xml:id="echoid-head51" style="it" xml:space="preserve">Del fare le mura con uarie coſe, del modo dello intonicarle, delle ſpranghe, & de rimedij lo-
            <lb/>
          ro, & della antichiſsima legge delli Architettorí, & de remedij da ſchifare i pericoli
            <lb/>
          delle Saette. Cap. X I.</head>
          <p>
            <s xml:id="echoid-s3641" xml:space="preserve">NOi habbiamo trattato del legitimo modo del murare; </s>
            <s xml:id="echoid-s3642" xml:space="preserve">con che pietre
              <lb/>
              <note position="left" xlink:label="note-084-02" xlink:href="note-084-02a" xml:space="preserve">10</note>
            certo ſi innalzi; </s>
            <s xml:id="echoid-s3643" xml:space="preserve">& </s>
            <s xml:id="echoid-s3644" xml:space="preserve">con che calcina ſi muri; </s>
            <s xml:id="echoid-s3645" xml:space="preserve">Ma hauendoſi a maneggiare di
              <lb/>
            uerſe ſorti di pietre, alcune le quali non ſi murino con la calcina, ma con
              <lb/>
            lo ſtucco; </s>
            <s xml:id="echoid-s3646" xml:space="preserve">& </s>
            <s xml:id="echoid-s3647" xml:space="preserve">alcune altre, che ſi cõmettino infra loro ſenza intriſo di ſorte alcuna;
              <lb/>
            </s>
            <s xml:id="echoid-s3648" xml:space="preserve">Et ſieno oltra di queſto alcuni altri modi di edificare, che con i ripieni ſoli; </s>
            <s xml:id="echoid-s3649" xml:space="preserve">& </s>
            <s xml:id="echoid-s3650" xml:space="preserve">al-
              <lb/>
            cuni che con le corteccie ſole ſi finiſchino, & </s>
            <s xml:id="echoid-s3651" xml:space="preserve">ſimili; </s>
            <s xml:id="echoid-s3652" xml:space="preserve">ne tratteremo breuiſsimamẽ
              <lb/>
              <note position="left" xlink:label="note-084-03" xlink:href="note-084-03a" xml:space="preserve">15</note>
            te. </s>
            <s xml:id="echoid-s3653" xml:space="preserve">Le pietre che ſi hanno a murare con terra; </s>
            <s xml:id="echoid-s3654" xml:space="preserve">biſogna che ſiano, quadre, & </s>
            <s xml:id="echoid-s3655" xml:space="preserve">
              <lb/>
            molto aride, & </s>
            <s xml:id="echoid-s3656" xml:space="preserve">a queſto non è coſa alcuna piu commoda che i mattoni, o cotti, o
              <lb/>
            piu preſto crudi ben ſecchi. </s>
            <s xml:id="echoid-s3657" xml:space="preserve">Il muro fatto di mattoni crudi, è molto atto alla
              <lb/>
            ſanità de gli habitatori; </s>
            <s xml:id="echoid-s3658" xml:space="preserve">& </s>
            <s xml:id="echoid-s3659" xml:space="preserve">eſſendo contro a fuochi ſicurriſsimo, non è anco mol-
              <lb/>
            to commoſſo da Tremuoti: </s>
            <s xml:id="echoid-s3660" xml:space="preserve">Ma il medeſimo, ſe e’ non ſl fa groſſo, non regge alle
              <lb/>
              <note position="left" xlink:label="note-084-04" xlink:href="note-084-04a" xml:space="preserve">20</note>
            impalcature. </s>
            <s xml:id="echoid-s3661" xml:space="preserve">Per queſto comandaua Catone, ch’e’ ui ſi tiraſsino alcuni pilaſtri
              <lb/>
            di pietra, che reggeſsino le Traui. </s>
            <s xml:id="echoid-s3662" xml:space="preserve">Sono alcuni, che deſiderano che il loto con
              <lb/>
            che hanno a murare, ſia ſimile al Bitume; </s>
            <s xml:id="echoid-s3663" xml:space="preserve">& </s>
            <s xml:id="echoid-s3664" xml:space="preserve">credono che quello ſia ottimo, che
              <lb/>
            meſſo nell’acqua ſi riſolue adagio; </s>
            <s xml:id="echoid-s3665" xml:space="preserve">& </s>
            <s xml:id="echoid-s3666" xml:space="preserve">che maluolentieri ſi ſpicchi dalle mani; </s>
            <s xml:id="echoid-s3667" xml:space="preserve">& </s>
            <s xml:id="echoid-s3668" xml:space="preserve">
              <lb/>
            che ſi riſerri molto, quando ſi ſecca. </s>
            <s xml:id="echoid-s3669" xml:space="preserve">Altri lodano piu il renoſo, per che egliè
              <lb/>
              <note position="left" xlink:label="note-084-05" xlink:href="note-084-05a" xml:space="preserve">25</note>
            piu trattabile. </s>
            <s xml:id="echoid-s3670" xml:space="preserve">Queſto sì fatto lauoro biſogna di fuori ueſtirlo d’una croſta di
              <lb/>
            calcina, & </s>
            <s xml:id="echoid-s3671" xml:space="preserve">di dẽtro, ſe ti piace di geſſo, o di terra bianca. </s>
            <s xml:id="echoid-s3672" xml:space="preserve">Et perche queſta piu
              <lb/>
            adattamente ſi accoſti, ſi debbe nel murare, mettere ne feſsi delle congiunture,
              <lb/>
            alcuni pezzuoli di mattoni hor in queſto luogo, & </s>
            <s xml:id="echoid-s3673" xml:space="preserve">hor in queſto altro, che ſpor-
              <lb/>
            tino in fuori, come dentelli; </s>
            <s xml:id="echoid-s3674" xml:space="preserve">accioche la corteccia meglio ui ſi attenga. </s>
            <s xml:id="echoid-s3675" xml:space="preserve">Lepie-
              <lb/>
              <note position="left" xlink:label="note-084-06" xlink:href="note-084-06a" xml:space="preserve">30</note>
            tre ignude, debbono eſſere, & </s>
            <s xml:id="echoid-s3676" xml:space="preserve">quadrate, & </s>
            <s xml:id="echoid-s3677" xml:space="preserve">maggiori che l’altre, ſalde, & </s>
            <s xml:id="echoid-s3678" xml:space="preserve">fermiſsi
              <lb/>
            me; </s>
            <s xml:id="echoid-s3679" xml:space="preserve">nel murare queſte, non accaſcono alcuní ripieni: </s>
            <s xml:id="echoid-s3680" xml:space="preserve">Ricercano gli ordini giu-
              <lb/>
            ſtiſsimi con cõmettitura perpetua, & </s>
            <s xml:id="echoid-s3681" xml:space="preserve">ui ſi debbono mettere legamenti ſpeſsi di
              <lb/>
            ſpranghe, & </s>
            <s xml:id="echoid-s3682" xml:space="preserve">di perni. </s>
            <s xml:id="echoid-s3683" xml:space="preserve">Le ſpranghe ſon quelle che cõgiungono le pietre a due
              <lb/>
            a due, ugualmente poſte; </s>
            <s xml:id="echoid-s3684" xml:space="preserve">& </s>
            <s xml:id="echoid-s3685" xml:space="preserve">che le uniſcono per ordine. </s>
            <s xml:id="echoid-s3686" xml:space="preserve">I Pernì ſon quelli, che
              <lb/>
            fitti nelle pietre, & </s>
            <s xml:id="echoid-s3687" xml:space="preserve">di ſotto, & </s>
            <s xml:id="echoid-s3688" xml:space="preserve">di ſopra, procurono che per auuentura gli ordini
              <lb/>
              <note position="left" xlink:label="note-084-07" xlink:href="note-084-07a" xml:space="preserve">35</note>
            delle pietre non eſchino l’uno troppo fuori dell’altro: </s>
            <s xml:id="echoid-s3689" xml:space="preserve">Non biaſimano le Spran
              <lb/>
            ghe, & </s>
            <s xml:id="echoid-s3690" xml:space="preserve">i Perni di ferro; </s>
            <s xml:id="echoid-s3691" xml:space="preserve">Ma io ho conſiderato ne gli edificij de gli Antichi; </s>
            <s xml:id="echoid-s3692" xml:space="preserve">che
              <lb/>
            il ferro ſi guaſta: </s>
            <s xml:id="echoid-s3693" xml:space="preserve">& </s>
            <s xml:id="echoid-s3694" xml:space="preserve">non dura, ma il Rame dura, & </s>
            <s xml:id="echoid-s3695" xml:space="preserve">quaſi ſempre ſi mantiene
              <lb/>
            eterno. </s>
            <s xml:id="echoid-s3696" xml:space="preserve">Oltre a che, io hò auertito che i Marmi per la ruggine del ferro, ſi
              <lb/>
            guaſtano, & </s>
            <s xml:id="echoid-s3697" xml:space="preserve">a torno ad eſſo, ſi rompono. </s>
            <s xml:id="echoid-s3698" xml:space="preserve">Veggonſi ancora Spranghe di legno
              <lb/>
              <note position="left" xlink:label="note-084-08" xlink:href="note-084-08a" xml:space="preserve">40</note>
            meſſe nelle pietre delle antichiſsime muraglie; </s>
            <s xml:id="echoid-s3699" xml:space="preserve">le quali io giudico, che non ſi
              <lb/>
            debbino poſporre a quelle di ſerro; </s>
            <s xml:id="echoid-s3700" xml:space="preserve">Le di Rame, & </s>
            <s xml:id="echoid-s3701" xml:space="preserve">di ferro ſi fermano con
              <lb/>
            piombo; </s>
            <s xml:id="echoid-s3702" xml:space="preserve">quelle di legno, ſono aſſai ferme per la forma loro, perche e’ le </s>
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