Written by us,for you to keep.
Six free PDF guides, written in house by Trust Works Company, covering spray foam insulation from a homeowner's point of view: what to expect on installation day, the Minnesota code your project is measured against, how closed-cell and open-cell foam differ, and the real, cited energy-savings figures behind the decision. Every document opens right in your browser, no request required.
What to expect, in plain English.
These four guides walk through spray foam insulation the way we would explain it in person: what it is, how a project actually runs from estimate to finished job, and the honest details around smell, ventilation, and re-entry timing that homeowners ask about most.
Homeowner's Guide to Spray Foam Insulation
What spray foam actually is, closed-cell versus open-cell in brief, where it typically gets installed in a Minnesota home, and what it means for your energy bill.
View PDFInstallation Day: Preparation and Safety
What to clear and cover before the crew arrives, why spray foam has a strong smell during application, and an honest re-entry timeline based on EPA and manufacturer guidance.
View PDFWhat to Expect: The Trust Works Process
A step-by-step walk from your first free estimate through installation day, the re-entry window, and your first heating season with the new insulation in place.
View PDFClosed-Cell vs Open-Cell Spray Foam Explained
R-value per inch, moisture control, sound dampening, and general cost differences, compared side by side, with plain guidance on where each foam belongs.
View PDFThe numbers behind the recommendation.
These two references cite their sources by name throughout, Minnesota Rules Chapter 1322, the U.S. Department of Energy, and ENERGY STAR, so you can see exactly where a figure comes from rather than taking our word for it.
Minnesota Insulation and R-Value Code Reference
The Minnesota Residential Energy Code's minimum R-values by assembly and climate zone, plus the fire and moisture rules that apply specifically to foam plastic insulation.
View PDFInsulation and Energy Savings in Minnesota
Published U.S. Department of Energy and ENERGY STAR figures on air leakage and energy savings, and why Minnesota's cold climate makes the attic the highest-return upgrade.
View PDFQuestions after you read one?
Get a free, no-pressure written estimate, and ask us anything about the products, code, or process behind your project.