Adding Insulation To Existing Roof

I started looking at this article which seems to have a picture of somebody sticking down a panel to an existing roof surface.

Adding insulation to existing roof.

Water is insulation s enemy. Portions of an existing building that are altered in the course of additions alterations renovations or repairs must be brought into conformance with the code with the following exceptions applicable to attic roof retrofit. How to install insulation board over an existing roof membrane. Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be.

It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow. Hack n stack sealed foam board between the rafters would be better since it s at least an air impermeable insulation but even that would require a vent gap below the roof deck to meet code and you d still be under r38 on that 2x6 rafters unless you. We have done many roof retrofits with a structural insulated panel nail base panel. Multiply the number of inches of insulation by the r value per inch.

The panel adds a remarkable amount of structure as well as insulation to the project. Unless your home was specially constructed for energy efficiency you can probably reduce your energy bills by adding more insulation. It is an acceptable practice to install a new roof over an existing roof membrane system provided that the roof deck is. When a flat roof is retrofitted by adding rigid foam insulation above the existing roof sheathing the new air and water control layers must be carefully integrated with the existing roof structures.

Department of energy fibgerglass batts have an r value of 3 2 per inch while loose fill fiberglass. Home weatherize insulation adding insulation to an existing home. Existing ceiling wall or floor cavities that are exposed provided the cavities exposed are filled with insulation. Or call at 316 995 1607.

Of your email interested please feel free to contact us on facebook at cp millworks business page. According to the u s. We go right over the existing shingles. Many older homes have less insulation than homes built today but even adding insulation to a newer home can pay for itself within a few.

Box out light fixtures.