Spray foam questions? Get answers from 30 years in the business.
Whether you're insulating a pole barn or dealing with a foam job gone wrong, get straight answers and request help finding the right kind of contractor.
- Written from 30 years in the urethane trade
- We sell no foam, no buildings, no products
- Every number sourced or absent — nothing invented
Which one are you?
Who writes this — and what we're selling
FoamTruth is built on 30 years in the urethane insulation trade — the failure stories, the cost realities, and the jobs that should never have been sprayed, from a career spent installing the stuff. When a page draws on that experience, it says so. When a subject is outside it — like the removal trade — we say that too, and build from the industry's own published guidance instead.
We sell no foam, no buildings, no board products. The site earns its keep connecting readers with contractors who do this work right — and that only works if the answers stay straight. So the standing rule on every page: every number is attributed to its source, or it isn't published.
— FoamTruth, Colorado
The calls we get most
"I'm building a shop or pole barn — what's insulation actually going to cost me, and is spray foam worth it?"
- "Something's wrong with the foam in my house — it smells, it's failing, or my lender flagged it. Does it need to come out?"
- "A contractor quoted me on spray foam. Is that the right choice for my building, or am I being oversold?"
The library
Insulating a building
Pole barns, shops, steel buildings, barndominiums — what the options really are, what drives cost, and when spray foam isn't the answer.
Pole barn insulation: options, tradeoffs, and cost An honest look at insulating a pole barn or metal shop — spray foam vs. batts vs. rolls, when foam is worth it, and what actually drives the price. Reviewed Jul 2026 Pole barn insulation cost: how pros build the number How spray foam pricing works — board-foot math, set prices through the years, why identical barns quote differently, and when more inches stop paying. Reviewed Jul 2026 Is spray foam worth it? A 30-year installer's answer When spray foam earns its cost, when a 30-year installer would hesitate, and how to protect yourself — the needle trick, vetting crews, DIY kit truth. Reviewed Jul 2026 R-value drift: how insulation's real R-value changes over time The label R-value is a lab snapshot. What aging does to closed-cell foam, what cold does to everything, and the aged numbers the law requires. Reviewed Aug 2026 Pole barn condensation, venting, and spray foam Where the dew point lands decides whether foam works — the cold-roof principle, why open-cell belongs on walls, and when you need an air exchanger. Reviewed Jul 2026 Metal building insulation: options and condensation How to insulate a metal building — spray foam, batts, rigid board, and blanket compared, why steel sweats, and when foam is and isn't the right call. Reviewed Jul 2026 How to insulate an existing metal building A practical sequence for insulating a metal building that's already up — assess, air-seal first, get condensation right, then pick methods by assembly. Reviewed Jul 2026 Blanket insulation for metal buildings: honest strengths, real limits What faced blanket insulation on a steel building actually does — where the rolls earn their price, where they quietly fail, and when to choose something else. Reviewed Jul 2026 Barndominium insulation: what changes when it's home Insulating a barndominium — why living in a metal or post-frame shell raises the stakes on moisture, fire code, and foam placement, and which options fit where. Reviewed Jul 2026
When foam goes wrong
Smells, failures, moisture, and the removal question — inspect first, and know what the work actually involves before anyone quotes you.
Spray foam insulation problems: what each one means Persistent smell, lumps, gas pockets, cracks, delamination, rusting metal — the mechanism behind each spray foam problem, from 30 years in the trade. Reviewed Jul 2026 EPA's spray foam safety guidance: what it said, where it lives now EPA retired its Safer Choice spray foam safety pages in a 2017 site move. What the guidance said, the archive links that still work, and what's current. Reviewed Aug 2026 Does spray foam need to come out? An honest checklist A 30-year installer's checklist: when spray foam stays (solid, dry, adhered), when it comes out, and why a moisture inspection should come before demolition. Reviewed Jul 2026 Get spray foam inspected before you rip it out Told to remove your spray foam because no one can inspect under it? Moisture and infrared inspection can answer that question without demolition. Start there. Reviewed Jul 2026 How to remove spray foam insulation — the real process What removing spray foam actually involves — the industry's own guidance decoded: tools by foam type, containment, the residue problem, and disposal. Reviewed Jul 2026 Spray foam removal cost: the sourced numbers, no guessing What spray foam removal costs — published guides report $3–12 per square foot, homeowners report $4,000–$15,000 attic quotes, and why quotes vary 4x. Reviewed Jul 2026 Spray foam removal: does bad foam need to come out? How to tell if spray foam needs to be removed — smell, off-ratio, moisture, lender flags — how removal works, and the appraisal angle. Request an assessment. Reviewed Jul 2026 Spray foam removal quote decoder — score any bid in a minute Check a spray foam removal quote against what a complete bid contains — containment, method, residue standard, disposal — and see exactly what to ask about. Reviewed Jul 2026 Roof moisture scans, surveys, and mapping explained Roof moisture scans, surveys, and mapping are one service with three names. How infrared finds wet insulation, what the report shows, and the cost drivers. Reviewed Jul 2026 How to remove spray foam from skin, clothes, and wood Getting spray foam off skin, hands, clothes, and wood — what works on uncured foam (acetone), why nothing dissolves cured foam, and what just takes time. Reviewed Jul 2026
Paperwork, lenders, and finding help
When a lender, insurer, or appraiser flags the foam — and the specialists who handle it, state by state.
Spray foam, lenders, insurers, and appraisers Why lenders, insurers, and appraisers flag spray foam — the UK precedent, what US mortgage documents actually require, and what resolves a flag. Reviewed Jul 2026 Spray foam removal companies: state-by-state directory Find spray foam removal companies — a neutral state-by-state directory covering CO, WY, NE, KS, UT, and NM. Listing is not an endorsement. Reviewed Jul 2026 Spray foam glossary: the trade's terms in plain language Every term the spray foam trade throws around — board foot, set, off-ratio, substrate, thermal barrier — defined plainly, with links to the full story. Reviewed Aug 2026
What's moving in this industry
- Aug 2026 California's toxics regulator issued a February 2026 final determination on spray foam systems with unreacted MDI — applicator training, protective-equipment disclosure, and a green-chemistry fee for manufacturers — while EPA's own SPF safety pages quietly moved to its archive. We mapped what moved, what's live, and where it all still reads. EPA's guidance, and what's current
- Jul 2026 UK surveyors' body RICS is reported to have found only about 1 in 10 spray foam removals technically justified — in the world's busiest removal market. The lesson travels: inspect before you demolish. Why inspection comes first
- Jul 2026 We decoded the foam industry's own removal manual — the ACC/CPI guidance contractors use — into plain language: tools by foam type, containment, and the residue truth nobody advertises. How removal actually works
- Jul 2026 Lenders, insurers, and appraisers keep tightening their questions about foamed attics. If a closing or renewal just flagged yours, there's a playbook. The lender playbook
Write to us about your building or your foam
Real people read every message — no call center, no ticket queue. Describe it in plain language; if the honest answer is "don't spend money on this," that's the answer you'll get.