Skip to content

Case studies & building science

Real projects with the numbers on them, plus the test data and building-science behind how we spec a job. Published so you can check our work.

90%less heat loss at 3 inches
Building science

How thick should closed-cell spray foam be? The ASTM C-236 data

Independent hot-box test data showing heat loss reduction at each inch of closed-cell spray foam, and why FoamGuard usually quotes two to three…

2026-09-25
65×more radon resistant than 6 mil poly
Building science

Closed-cell spray foam for radon abatement: 65× more resistant than 6 mil poly

Independent lab testing shows 1.25 inches of Heatlok HFO closed-cell spray foam is 65 times more resistant to radon migration than a 6 mil…

2026-09-25
R-7.4per inch, 6.5 in. in one lift
Product

Why we spray Huntsman Heatlok HFO High Lift

The closed-cell spray foam FoamGuard installs: R-7.4 per inch, a 6.5 inch single lift, an HFO blowing agent with a GWP of 1, GREENGUARD Gold…

2026-09-25
2 lbvs 0.5 lb per cubic foot
Building science

Closed-cell vs open-cell spray foam in Climate Zone 5 (Western PA)

How the two spray foams differ in R-value, density, vapor permeability and cost, and how FoamGuard decides which one belongs in a given assembly in…

2026-09-25
3"closed-cell, 2,676 ft²
Project

Horse barn, 60 × 49 × 17: 3 inches of closed-cell on metal walls

A 60 by 49 foot metal horse and animal enclosure in West Middlesex, Pennsylvania, with 17 foot walls sprayed at 3 inches of Heatlok HFO High Lift…

2026-08-04
2"closed-cell, 4,724 ft²
Project

Metal building, 28 × 73 × 17: walls and roof deck at 2 inches

A 28 by 73 foot metal building in Blair County, Pennsylvania, 17 feet to the eave with a 4/12 gable roof. Walls, gables and roof deck sprayed at 2…

2026-08-05
2.5"closed-cell, 1,972 ft²
Project

Metal shop, 20 × 30 × 12: walls, gables and roof deck at 2.5 inches

A 20 by 30 foot metal shop with 12 foot walls and a 6/12 gable roof. Walls, gables and roof deck sprayed at 2.5 inches of Heatlok HFO High Lift…

2026-07-30
Call Get my price