Design a MODERN & CATCHY logo for a FLATROOFING company!!

VARIGE TAK OG MEMBRANER

Hello Designers. My Company is a craftsmancompany which has spesialized in flatroofing 0-12d roof pitch and various membranes. Delivers for example sealed roofs With Product of Sarnafil, Icopal and Bauder.
Company is located i South Norway.
Target audience is houseowners, carpenters, Buildingcontractors, arcitects, landlords and everybody who can need a waterproof roof/swimmingpool-membrane/ terrace-membrane etc.

VARIGE TAK OG MEMBRANER is Norwegian words. I will translate them for you. VARIGE = lasting, TAK = roofs/flatroofs, OG = and, MEMBRANER = Membranes. I like the green color to reflect a environmentally friendly thought, and the blue color to reflect water.
Here are som keywords i like people to (subconscious) think when they see my logo: clear, environmentally friendly, reliable, power, majestically. etc
VARIGE TAK is most important letters. OG MEMBRANER can be written with smaller letters to fit in good design. The logo will be used on cars, businesscards webpages etc. so i need the logo in webfile and vector files ready for print/press. It could also be nice to see an logo that could fit in a square for an facebookprofie.
I made some ideas myself to let you know the way i think.
I wish U the best desire to work.
With best regards
Marius M.