• 4501 NE Minnehaha Street #200, Vancouver, WA 98661
  • Archives for Ask the Builder

    What is a U-value on Windows?

    Q: Windows-What is a U-value? A: Who would think that understanding how windows would perform is so complicated. AAMA (American Architectural Manufacturers Association) has a product certification that helps. Their website is www.aamanet.org/general/2/127/product-certification. Cars have MPG (miles per gallon) to…

    Read more