Three Strategies For Insultaing A Roof

Maximizing each role of the roofing insulation increases your roof s roi.

Three strategies for insultaing a roof.

There is blown in insulation between the rafters. Currently the built up asphalt roof is installed over homasote or something similar and a roof deck made of wood planks. If you are thinking of replacing your roof opt for a lighter color. Although there s some sparsely distributed insulation in the space between the ceilings and the roof deck it won t meet current recommendations for dymond s climate zone 4 house.

Heat moves through a roof in three ways. I have an existing cathedral roof unvented. When comparing these products look for the highest numbers in solar reflectance and thermal emittance both on a. Some shingles are energystar rated.

Roof insulation martin great article on insulating cathedral ceilings. This makes the insulation resistant to airflow and excellent at noise reduction. Another report taped insulating sheathing drainage planes describes this. The liquid turns into a solid cellular material of air filled cells which fills every space even the small spaces where air will not escape.

I want to remove the shingles repair sheathing as needed install 2 1 2 on rigid polyiso 1 2 cdx followed by shingles. Insulation must secure properly to the roof deck to provide an acceptable substrate for the roof covering. Mechanical fastening with self tapping screws and plates is the most common and approved method for insulation attachment on steel and wood roof decks. Gives me the proper r value for my zone 4.

Others have been tested by the cool roof rating council. Breaking down roofing insulation s thermal function. When a dark roof absorbs light it heats up you home causing you to use more energy to cool it. See the graphics for an overview of three assemblies focused on the exterior walls and roof systems of the building and demonstrating which combination of construction and materials provide the highest levels of stc oitc and r value.

The three layers of rigid insulation have yet to be. Lighter colors reflect light rather than absorbing it. Bsc s high r value retrofit techniques for roofs unvented attics describes the use of multiple layers of rigid insulation above the roof deck as a retrofit technique to insulate an attic and bring it into the thermal enclosure. Roof to wall air seal note the connection of the new roof deck membrane overlapping the trimmed back original gable overhang and catching the white housewrap water control layer and air control layer behind the wall exterior insulation the blue layer of foam.

Paradigm roofing is happy to show you the top strategies for an energy efficient roof. With rigid insulation as a component.