Homeowner guides
Attic and Crawl Space Guides
These guides answer the questions we hear most during inspections. Each one is specific to houses in Western Washington: our wet winters, glacial soils, local rodents and the way homes here were built.
Western Washington homes
7 guides
Crawl spaces
Attics
How much attic insulation do I need?R-values, depth by material and how to measure yoursWhy attics frost and drip in wintercondensation, frosted nails and black sheathing explainedVermiculite in the attic: what to do about asbestos riskhow to recognize it and the steps before any workKnob-and-tube wiring and attic insulationwhy old wiring changes the insulation plan