Blog – Interwest Insulation

Home › Blog

INSULATION ARTICLES & GUIDES

Practical insulation guidance for Utah homeowners. Explore materials, attic upgrades, and common comfort questions. Each guide includes technical references and links to relevant Interwest services.

Looking for local job photos? Browse Our Work by city and project type.

Attics

Plan attic upgrades, understand R-values, and coordinate insulation with air sealing and ventilation.

Attic insulation around diagonal roof bracing with a depth marker in Lehi

Understanding Attic R-Values: R-38, R-49 and R-60

Learn the difference between existing, added, and final attic R-values, why insulation depth depends on the product, and what to confirm in a Utah upgrade estimate.

Read the guide →

Insulation and roof framing around a masonry flue in a Lehi attic

Attic Insulation, Air Sealing and Ventilation: How They Work Together

Understand the separate roles of insulation, air sealing, and ventilation in a vented attic, plus moisture concerns and preparation to resolve before an upgrade.

Read the guide →

Living room protected with plastic sheeting and floor coverings for overhead insulation work

Preparing Your Home for an Attic Insulation Upgrade

Use this homeowner checklist to prepare attic access, coordinate repairs, protect belongings, confirm the scope, and review your insulation upgrade at completion.

Read the guide →

Materials

Compare insulation materials and installation systems for attics, open walls, and ceilings.

Blown fiberglass insulation around roof trusses in a Draper attic

Cellulose vs. Fiberglass Attic Insulation in Utah

Compare cellulose and blown fiberglass for a Utah attic upgrade, including installation quality, settling, existing insulation, and questions to ask before choosing.

Read the guide →

Interwest installer on a scaffold installing insulation in a tall netted wall in Draper

Netted-and-Blown Fiberglass vs. Batt Insulation

Compare netted-and-blown fiberglass and batts for open walls and ceilings, including coverage, trade coordination, sound goals, and questions to ask before drywall.

Read the guide →

Home Comfort

Understand common comfort problems and the building systems that may contribute to them.

Loose-fill attic insulation between roof trusses in Lehi, Utah

Why Is My Upstairs So Hot in Summer?

A hot upstairs can involve attic insulation, air leaks, ductwork, windows, or HVAC performance. Learn what to observe before planning an insulation upgrade.

Read the guide →

Insulated residential walls and netted ceiling in open framing

Why Is the Bedroom Above My Garage Cold?

Learn why rooms over garages can be uncomfortable and how insulation coverage, air sealing, finished ceilings, and HVAC performance affect the right repair plan.

Read the guide →

Costs, rebates and next steps

Utah insulation cost guide — Learn what affects an insulation estimate.
Utah insulation rebates — Review current utility programs and eligibility requirements.
Insulation services — Find the service that fits your project.

Interwest provides insulation installation and upgrades. We do not currently install spray foam or offer insulation removal. Ask us about spray-foam referrals when needed.

Request an insulation estimate See completed local projects