Which insulation is the best for the attic?
When it comes to your Albuquerque existing home’s attic, the best insulation to add is blown in fiberglass insulation. Fiberglass insulation today is completely different from the insulation of yesteryear. Today’s blown fiberglass is made with over 50% recycled glass, with no chemicals of additives like formaldehyde. Compared to other products like cellulose, in an existing home’s attic, fiberglass won’t settle, migrate or cause a lot of dust in your home. Blown fiberglass insulation is our product of choice for an existing home attic.
For new construction, there are many options and choices; like blown in fiberglass, however, the best of the best is Icynene spray foam insulation.
Which insulation is best for walls?
One thing to make note of if attempting to insulate walls in an existing home, this process is very invasive. What we mean by that is, holes must be cut in the drywall, which is very dirty, dusty and gets on everything! However, if you don’t have any insulation in your walls, the best insulation to add is blown fiberglass insulation. It will fill the was cavity fully around outlets and pipes.
For new construction, there are many options and choices, like batt insulation, web sprayed cellulose insulation or blown in fiberglass. However the best of the best is Icynene spray foam insulation.
What is good R value for home insulation?
R value is the way we quantify how much the insulation helps reduce heat flow; the R actually stands for resistance — resistance to heat flow. In Albuquerque, our current building code is R38 for the ceiling of a home. However, that is the bare bones minimum. Actually, the department of energy says for our Albuquerque climate zone we should have at least R49 to R60, this is for both existing homes and new construction homes.
For the walls in new construction, the Albuquerque building code is (19 in a 2×6 frame; R24 in a 2×6 wall construction is the best R-value to attain.
Can insulation get moldy?
As with any product that gets wet, mold can begin to grow. So yes, insulation that has been exposed to moisture can grow mold. This can happen with a roof leak, air conditioner leak, or any water leak throughout the home. However, not all mold issues come from leaks. Controlling moisture can prevent mold growth and make your home more comfortable and less costly to heat and cool. Air movement accounts for more that 98% of all water vapor movement in homes. Air naturally moves from high pressure to lower pressure, generally through holes or cracks in the building envelope. Sealing air holes and adding insulation to help reduce the heat transfer can help solve moisture problems.