Charlotte Roofing: Article About Retrofitting Roof Features For Energy Efficiency
Historic homes featured in hot, humid climates sometimes struggle to maintain energy efficiency due to poorly executed renovation or deteriorating materials. Charlotte roofing companies work closely with homeowners to help retrofit their historic properties with materials that will increase the home's efficiency without detracting from the building's history.
Attic insulation is a great retrofit option because it can be installed without disturbing historic materials, and it doesn't detract from the home's appearance. Homeowners should either use unfaced batt insulation or blown insulation for the best results. If there is limited space due to depth issues, batt insulation can be combined with rigid board insulation to achieve the proper R value. Loose fill fiberglass insulation is a great option for retrofitting projects because it doesn't decay, and it performs well in warmer temperatures. Cellulose insulation is another great option for attics. It's made with smashed newspapers that have been treated with boron, so it's fire and pest resistant. It can be blown into place, dry or wet. Although it can only be applied professionally, low density polyurethane spray foam eliminates the need for vapor barriers, blocks sound, and works well with older framing that expands and contracts.
Installing a radiant barrier is an excellent way to improve the energy efficiency of historic buildings in hot climates.
A roofing professional from Southern Home Services of Charlotte NC would be happy to answer questions about roof repairs or vinyl siding.
Radiant barriers are just sheets of aluminum bonded to sheathing that reflect the heat of the sun, preventing heat from being absorbed by the roof. To install a radiant barrier, the reflective part of the material has to face an air space that is at least one inch thick. If it's installed on the attic floor, the shiny side should face up, but if it's installed on the attic rafters, the shiny side needs to be facing down. The only time a radiant barrier shouldn't be installed on the attic floor is when the floor is insulated. This is because dust and moisture will become trapped between the insulation and the radiant barrier. Tests prove that the presence of a radiant barrier in a well insulated attic will lower the temperature of the space by at least 30 degrees. These barriers should be applied by professionals because improper installation will result in the ineffectiveness of the structure.
Most historic homes don't need very many improvements to be energy efficient. A few retrofitted features can be a great addition to the property as long as original features aren't altered or destroyed.