30 grains of black powder will drive that lead ball just fine.
R30 attic insulation good.
First off there is no code requirement that would mandate adding insulation to a 6 year old house.
Sixty grains even faster.
Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
Here s what i mean.
Insulation our building science makes insulation br smarter.
To increase home comfort and save energy year round start by insulating the attic keeping the heat in during the winter and out in the summer.
Whoa whoa david oswald you ve just entered the domain of the law of diminishing returns.
Choice in attic insulation can make a big difference for energy saving in your home.
Attic existing 3 4 inches of insulation uninsulated floor uninsulated wood frame wall insulated wood frame wall 1 r30 to r49 r25 to r30 r13 2 r30 to r60 r25 to r38 r13 to r19 n a 3 r30 to r60 r25 to r38 r19 to r25 and add r5 insulative wall sheathing beneath the new siding 4 r38 to r60 r38 r25 to r30.
See the department of energy s doe ranges for recommended levels of insulation below.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
The current standard in new construction is to try to achieve a r 42 in attic spaces.
Existing 3 4 inches of insulation.
10 bags model bf90 view the owens corning attic insulation.
From schools to businesses to family homes our insulation works everywhere.
This is one of the most cost effective areas to add insulation.
Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces.
Use rockwool thermal stone wool insulation to.
Its expert engineering lets you create the most comfortable environment without compromising your design.
90 grains might be approaching the ma.
Owens corning r 30c ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 15 1 2 in.
Add insulation to attic.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.