When analyzing the influence factors which have an impact on the groups of windows industry with activity especially at European level, it could be noted that, despite a punctual decrease of construction market in the second quarter of 2015, a number of positive aspects noticed lately determined a restored profitability. Thus, the statistical information which were announced recently by Eurostat on the balance of trade reflects a heterogeneous situation, proving, however, the economic performance of each EU Member State. Consequently, for the first six months of this year, the deficit of the 28 EU Member States in the field of energy decreased (up to 128.1 billion euro, compared with 172.9 billion euro the first half of 2014), but the reducing of surplus for manufactured goods was less steep (reaching 153.4 billion euro, compared to 167.8 billion euro). A press release from the Eurostat shows that the "EU-28 exports to major trading partners grew in January-June 2014, excluding Russian Federation (-32%), Brazil (- 4%) and Norway (-1%), which were until recent states with a great potential. The most significant increases were recorded in exports to the US (+ 23%) and South Korea (21%). In terms of imports, the EU-28 most important enhancing stood on trade with the US (+ 24%) and various emerging countries such as China (+ 19%), Turkey (+ 12% ), India (+ 11%) and Japan (+9%). Sharp declines were observed in Russia (-26%) and Norway (-13%). Also among Community countries, trade balance surpluses of particular goods were observed in Germany (125.5 billion euro in the reference period), followed at some distance by the Netherlands State (28.8 billion euro), Ireland (22.7 billion euro) and Italy (18.5 billion euro). Major deficits, which could be recovered only in the long term, reflecting the lack of competitiveness, have been reported in the UK (-74.9 billion euro), France (-29.2 billion euro), Spain (-11.9 billion euro) and Greece (-9.2 billion euro). Romania is now a more stable area in terms of trade balance, because for the first six months of 2015 recorded a deficit similar to the one recorded in January-June 2014, placed at -3.3 billion euro, compared to -2, 8 billion euro.