building insulation
Wall cavity filler
Building insulation is material installed in walls, roofs, floors, and other structural components to reduce heat transfer between inside and outside.
Common types include fiberglass batts, spray foam, cellulose, and rigid foam boards.
Insulation is rated by R-value—higher numbers indicate greater resistance to heat flow.
The contractor recommended adding insulation to the attic to lower heating costs.
- polystyreneLightweight synthetic foam plastic
- aerogelGas-filled porous solid
- foam boardRigid polystyrene-core panel
- fiberglassReinforced woven strand composite
- cellulosePlant wall polysaccharide
loose fill · vapor barrier · mineral wool · rigid foam · spray foam · thermal bridging · R-value · weatherization · energy efficiency · draft stopper · rock wool · acoustic foam · polyurethane · seal · ceiling · foam · batting · contractor
building insulationheat sink
Device absorbing component warmth
radiator · cooling system · heat exchanger · conductive materials · bare concrete