Gras\u00fe\u00f6k eru vel \u00feekkt h\u00e9r \u00e1 landi eins og gefur a\u00f0 skilja, enda helsta \u00feakefni\u00f0 sem nota\u00f0 var fr\u00e1 landn\u00e1mi fram \u00e1 19. \u00d6ld. Eftir a\u00f0 hafa l\u00e1ti\u00f0 undan s\u00edga \u00e1 20. \u00f6ld hafa gras\u00fe\u00f6k aftur or\u00f0i\u00f0 vins\u00e6lt byggingarefni \u00e1 undanf\u00f6rnum \u00e1rum og gjarnan gripi\u00f0 til \u00feeirra \u00feegar fella \u00fearf byggingar vel a\u00f0 umhverfi s\u00ednu. N\u00fa m\u00e1 \u00ed \u00fe\u00e9ttb\u00fdli v\u00ed\u00f0a sj\u00e1 gras\u00fe\u00f6k \u00e1 b\u00edlgeymslum og \u00f6\u00f0rum st\u00f3rum byggingum me\u00f0 fremur fl\u00f6t \u00fe\u00f6k. \u00de\u00e1 er vins\u00e6lt a\u00f0 hafa gras\u00fe\u00f6k \u00e1 sumarb\u00fast\u00f6\u00f0um og fleiri byggingum \u00ed sveitum landsins. Kostir gr\u00e6nna \u00feaka eru me\u00f0al annars:<\/strong> \u00datlitslegur \u00e1vinningur er \u00f3tv\u00edr\u00e6\u00f0ur. Gr\u00e6n \u00fe\u00f6k eru yfirleitt falleg \u00e1 a\u00f0 l\u00edta og setja sterkan svip \u00e1 byggingar og umhverfi sitt.<\/p>\n Finna m\u00e1 \u00fdmsar gagnlegar uppl\u00fdsingar \u00e1 \u00feessum vefsl\u00f3\u00f0um:<\/p>\n Veg Tech<\/a> (S\u00e6nskir framlei\u00f0endur gr\u00e6nna \u00feakefna)<\/p>\n Flor Depot<\/a> (Breskir framlei\u00f0endur gr\u00e6nna \u00feakefna)<\/p>\n
\nHelsta vandam\u00e1l vi\u00f0 notkun gr\u00f3\u00f0urs \u00e1 \u00fe\u00f6kum tengist vatnsb\u00faskapnum vegna \u00feess hve vaxtarlagi\u00f0 er oftast \u00feunnt og me\u00f0 litla rakaheldni. \u00cd \u00feurrki h\u00e6ttir grasinu til a\u00f0 skr\u00e6lna og jafnvel drepast, \u00fear af lei\u00f0andi er mikilv\u00e6gt a\u00f0 h\u00e6gt s\u00e9 a\u00f0 v\u00f6kva \u00ed langvarandi \u00feurrkat\u00ed\u00f0 til a\u00f0 halda grasinu lifandi.
\n\u00cd n\u00e1grannal\u00f6ndum okkar hefur \u00e1hugi fyrir gr\u00f3\u00f0ur\u00fe\u00f6kum (e. green roofs – eco roofs) aukist og \u00fdmsar a\u00f0fer\u00f0ir veri\u00f0 \u00fer\u00f3a\u00f0ar til \u00feess a\u00f0 l\u00e1ta r\u00e6ktunina ganga upp. Algengt er a\u00f0 nota hno\u00f0ra (Sedum spp.) og a\u00f0rar \u00feurrk\u00feolnar tegundir fremur en gras \u00ed gr\u00f3\u00f0urlagi\u00f0. Valdar eru tegundir sem gera litlar kr\u00f6fur til vaxtarlags, n\u00e6ringar og vi\u00f0halds.
\nSem d\u00e6mi m\u00e1 nefna a\u00f0 Kaupmannahafnarborg hefur sett s\u00e9r \u00fea\u00f0 markmi\u00f0 a\u00f0 allar n\u00fdjar opinberar byggingar me\u00f0 \u00feakhalla undir 30\u00b0 ver\u00f0i uppbygg\u00f0ar me\u00f0 gr\u00f3\u00f0ur\u00feekju \u00e1 \u00feaki og a\u00f0 vi\u00f0 endurn\u00fdjun eldri \u00feaka me\u00f0 flatt yfirbor\u00f0 ver\u00f0i einnig notu\u00f0 gr\u00f3\u00f0ur\u00feekja. Markmi\u00f0i\u00f0 me\u00f0 \u00feessum a\u00f0ger\u00f0um er me\u00f0al annars a\u00f0 minnka \u00e1lag \u00e1 holr\u00e6sakerfi boraginnar sem hefur aukist miki\u00f0 \u00ed samr\u00e6mi vi\u00f0 auki\u00f0 \u00farkomumagn \u00ed rigningum. Sj\u00e1 n\u00e1nar um markmi\u00f0 Kaupmannahafnarborgar : Hopenhagen<\/a>
\n\u00der\u00e1tt fyrir meiri kostna\u00f0 vi\u00f0 uppsetningu gr\u00e6nna \u00feaka en hef\u00f0bundinna m\u00e1 f\u00e6ra r\u00f6k fyrir \u00fev\u00ed a\u00f0 kostirnir s\u00e9u margir og a\u00f0 uppbyggingarkostna\u00f0urinn s\u00e9 jafnvel l\u00e6gri til lengri t\u00edma liti\u00f0.<\/p>\n
\n\u2022\tAukinn l\u00edft\u00edmi \u00feakefna \u00fev\u00ed gr\u00f3\u00f0ur\u00feekjan verndar yfirbor\u00f0i\u00f0 gegn ve\u00f0run og s\u00f3larlj\u00f3si.
\n\u2022\tL\u00e6kkun h\u00fashitunarkostna\u00f0ar vegna \u00feess a\u00f0 gr\u00f3\u00f0ur\u00feekjan er einangrandi.
\n\u2022\tBetri hlj\u00f3\u00f0vist \u00fear sem gr\u00f3\u00f0ur\u00feekjan er hlj\u00f3\u00f0einangrandi og verndar \u00fear af lei\u00f0andi gegn h\u00e1va\u00f0amengun.
\n\u2022\tAukin l\u00edffr\u00e6\u00f0ileg fj\u00f6lbreytni. \u00ddmsar pl\u00f6ntutegundir \u00fer\u00edfast \u00e1 \u00fe\u00f6kum auk skord\u00fdra, annara sm\u00e1d\u00fdra og \u00f6rvera \u00feannig ver\u00f0ur til s\u00e9rstakt l\u00edfr\u00edki upp \u00e1 \u00feaki
\n\u2022\tBetri mi\u00f0lun regnvatns, auki\u00f0 magn \u00farkomu veldur \u00e1lagi \u00e1 holr\u00e6sakerfum. Gr\u00f3\u00f0ur\u00fe\u00f6k h\u00e6gja \u00e1 rennsli og binda st\u00f3ran hluta \u00feess vatns sem fellur \u00e1 \u00feaki\u00f0.
\n\u2022\tGr\u00f3\u00f0ur gr\u00e6nna \u00feaka bindur CO2, ryk og mengun. Einnig hafa ranns\u00f3knir s\u00fdnt a\u00f0 gr\u00f3\u00f0ur\u00feekjan verndi gegn rafsegulbylgjum.
\n\u2022\tL\u00e6kkun \u00e1 k\u00e6likostna\u00f0i \u00e1 sv\u00e6\u00f0um \u00fear sem hitastig er h\u00e1tt og nau\u00f0synlegt er a\u00f0 nota loftk\u00e6lingu.<\/p>\n