WeSprayIt field guide
Choosing spray insulation for an existing building
Compare spray foam and Monoglass by assembly and goal.
Original WeSprayIt planning illustration. Scope relationships only; not construction or specification instructions.Original WeSprayIt editorial diagram explaining this planning topic; not a project photograph.
WeSprayIt editorial team · Reviewed October 13, 2026
Start with the assembly
Describe the surface, control-layer goals and acoustic or appearance needs.
Bring observations
Note moisture, access and existing materials.
