This work deals with daylighting for indoor quality atmospheres, considering building skins and side-views. We also tested the vision perception provided by highly glazed façades. Several Spanish restaurants were analyzed, and two were assessed and measured under outside midday high luminance. The selected pictures can be identified as restaurants via MIT Scene Recognition software and are used to demonstrate working, stressful, and socializing atmospheres. Light and vision detailed analysis was performed defining three workplanes-"table", "person", and "outside"-from the viewpoint of the user. The obtained DGP (daylight glare probability) for the first case (facing southeast) shows a higher glare probability than the second (facing north). In both restaurants, there is notable spatial contrast and high information content. If, in the overall perception, the adaptation from the intermediate workplane is considered, the DGP is lower than if only one workplane is considered. The conducted indicative survey shows that there is a high light contrast, and there are some undesirable visual elements. The studied fully glazed façades tend to provide fraught atmospheres. These would be useful for some stimulating activities; however, for calm restaurants that offer tasting menus with quality food, it seems that the studied fully glazed façades may not be suitable.

This work deals with daylighting for quality indoor atmospheres, considering building skins. In recent years, almost all retrofit facades of restaurants are highly glazed façades, boosting glare, sun ray absorption and overheating inside. Most of the time, they are not integrated with daylight control; therefore, lighting and out view requirements are not so balanced. Taking into account this daylighting complexity, an alternative façade system is proposed to simulate by Radiance. Previously, perception simulations are compared with measured data, in order to discretize the simulations. In addition, for one point three different view are assessed as: work plane, relation plane and the out plane. Subsequently, two virtual façade models, windows combined by complex fenestration system (CFS) as prismatic film (PF) and highly glazed façade, are tested according to daylighting. For that, three indexes have been used: daylight glare probability (DGP), daylight glare index (DGI) and daylight autonomy (DA). The results show that the proposed complex façade has a good light contribution with less absorption, while maintaining the outside view. In addition, the DGI is needed to test the out plane, because DGP is more suitable for lower luminance; therefore, each visual plane should be assessed regarding different visual comfort conditions, or parameters and methods. Accordingly, the mean DGI result of window combined by CFS is approximately lower in 5% than highly glazed façade. However, the DA of highly glazed is higher in 5%, but the DA of window combined by CFS is enough, above 80%. Definitely, the complex scene at restaurant with the proposed integrated façade system improves light performance and indoor atmosphere.

Estalki putzuduna klima lehorreko herrialdetan erabili ohi da. Horregatik, ez da kasualitatea estalki honen inguruko ikerketa garrantzitsuenak Indian, AEBtan eta Israelen eginak izatea. Hala ere, pasa den mendean, estalki putzuduna asko hedatu zen Euskal Herriko eraikuntzetan, gehienbat ingurune industrialetan. Gaur egun, ordea, ia ez da erabiltzen. Zergatik erabili zen hainbeste estalki putzuduna gurea bezalako herrialde hezean? Artikulu honetan galdera hori erantzuten saiatu gara, estalki putzudunaren ezaugarriak, abantailak eta arazoak jorratuz. Hasteko, estalkien hainbat sailkapen aurkezten ditugu, estalki putzudunaren ezaugarriak hobeto ulertzeko. Estalki putzudunaren historia laburki lantzen dugu, Euskal Herriko (eta bereziki Arrasateko) adibideetan arreta jarriz. Estalki putzudunak abantaila garrantzitsuak ditu, eraikinaren kudeaketa termiko pasiboa hobetzeko. Alde batetik, eraikinaren inertzia eta isolamendu termikoa handitzen da barruko bizi-giroa hobetuz. Beste aldetik, eraikina hoztu edo berotu daiteke estalki putzuduna erabiltzen duten hainbat metodoetaz baliatuz. Estalki putzudunak bestelako abantailak ere eskaintzen ditu, hala nola, jasangarria dela eta ikuspegi ekologikotik onurak besterik ez dituela. Eta, noski, desabantaila batzuk ere baditu: zikinkeria pilatu daiteke, mantentze-lana behar du eta eraikinaren egitura sendoagoa izan behar da uraren zama jasotzeko. Amaitzeko, nazioarteko hainbat adibide aurkezten ditugu estalki putzudunaren gaur egungo erabilerak ezagutarazteko. Laburbilduz, arazo batzuk baditu ere, oraindik ere estalki putzuduna interesgarria da gaur egungo eraikinetan eta Euskal Herriko eraikin batzuetan onuragarria izan liteke.