After crawling around in my attic and crawl space yesterday and inspecting the current linesets for the two units i m about to replace i ve decided that i m not going to re use them.
Old insulation on attic ac lines.
Rigid insulation is extruded into board form and is often made of plastic.
Foam insulation is sprayed into place and expands to fill the cavity.
Both can be added to uninsulated attics or layered over existing material.
For diy attic insulation you ve got two choices.
Condensation that forms on your outdoor a c lines reduces efficiency and raises your energy costs.
Believe it or not there are situations in a home when you should remove the old attic insulation before adding more over the existing and in this short video.
The insulation must meet doe standards.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Then measure the outside diameter on the larger of the two tubes the skinny tube doesn t need insulation.
Start by peeling off all the old air conditioner foam insulation.
Put it in an attic full of blown insulation and you re.
Loose fill or batt the common term for blanket insulation.
There are several couplings and by the look of things the guy who installed the current condensing units in the 80 s only used insulation on the lines where it would be visible as soon as the linesets get to.
The answer to making an old house inhabitable is insulation.
Replacing ac pipe insulation if your air conditioning system s pipe insulation has degraded you may be spending more than is necessary to adequately cool your home.
Direct the blower away from the baffles and attic stairs to minimize cleanup.
Even if you bought the house with insulation already installed into it it s best to double check.
Radiant barriers which are usually installed in the attic have aluminum foil backing to prevent heat from radiating through.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Spray insulation to the corners and perimeter of the attic first working your way into the center.
The insulation materials used in older houses are not as effective in keeping heat in as the new ones.