What R-Value do I need in Minnesota?

What R-Value do I need in Minnesota?

Many home attics in Minnesota have some insulation; most can benefit by adding more attic insulation. Increasing attic insulation to an R-60 can provide a good barrier to heat loss (the code minimum for new buildings is R49).

How high of an R-Value do I need?

Depending on where you live and the part of your home you’re insulating (walls, crawlspace, attic, etc.), you’ll need a different R-Value. 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.

What is a good R-Value per inch?

Comparative Insulation R-Values

What R-Value insulation should I use for my garage?

Exterior Garage Walls Typically these will be constructed from standard 2-by-4 studs which will define the amount of insulation that you can have installed. You should be targeting an R-Value of R-13 or R-15 in these areas to properly maximize your insulation in this application.

How much insulation do I need in MN?

Here in the Twin Cities area in Minnesota, we are in Zone 6. In uninsulated attic spaces, the target R-value is R49 to R60, R38 to R49 for attics with some insulation. For floors, the ideal R-value is R25 to R30.

How much insulation should I put in my attic?

The higher the R-Value, the better the thermal performance of the insulation. The recommended level for most attics is to insulate to R-38 or about 10 to 14 inches, depending on insulation type.

Can I use r30 insulation in walls?

“R” is a value – Not a thickness or a material. Rigid fiberglass and rock wool are much thinner (yet much more dense and much more effective) than ‘fluffy” stuff. R-30 fiberglass insulation is designed to be in a roof or ceiling cavity framed with 2x10s. It is way too thick for 2×4 walls.

What is the best R-value for 2×4 walls?

R-13
Insulation for 2×4 Walls In most wall applications, you will use R-13 or R-15 kraft-faced fiberglass insulation rolls for these two-by-four stud walls. While rated differently, these two types of insulation are close enough in thickness that they can both fit into modern two-by-four wall systems.

What are the drinking water standards in Minnesota?

The 1974 federal Safe Drinking Water Act directs the US EPA to set national drinking water standards for naturally occurring and man-made contaminants in public drinking water. These standards represent legally enforceable limits. MDH enforces these drinking water standards for public water supplies in Minnesota.

What is Class 1 groundwater in Minnesota?

In Minnesota’s water quality standards, all groundwater is protected as a source of drinking water (Class 1.) All surface waters are classified and protected for multiple beneficial uses. These uses encompass the benefits and uses of surface waters as listed in Minn.

What does the Minnesota Department of Health do for water safety?

Human Health-Based Water Guidance Table The Minnesota Department of Health (MDH) develops health-based rules and guidance to evaluate potential human health risks from exposures to chemicals in groundwater. For more information, see: Guidance Values and Standards for Contaminants in Drinking Water or contact the Health Risk Assessment Unit.

How much energy does your Minnesota home use?

ELECTRONICS 5% LIGHTING 10% APPLIANCES 15% WATER HEATING 15% HEATING AIR CONDITIONING 55% Home Energy Use A typical Minnesota household uses about 180 million British Thermal Units (mmBTU) of energy every year to heat, cool, light, and operate appliances and electronics.