Standard Behind Your Walls

The one thing you can not go back and remodel or upgrade later is what is behind your walls. Here we will SHOW you what we do and in some cases let you know what most builders get by with. Wardcraft’s high performance standards form the foundation of a superior energy-efficient home that exceeds even the most stringent regional building codes. Quality construction helps homeowners live comfortably while paying lower monthly energy bills. Our product choices were carefully selected for durability, low maintenance, optimum value and performance. Our standards include:

Enhanced Insulation Package, Formaldehyde-Free
BENEFIT: Properly installed, high R-value insulation requires less energy to heat and cool,
resulting in lower utility bills and a quieter, more comfortable home.

Standard 2"x6" R-23 Exterior Walls
Johns Manville Spider Fiber® blown fiberglass insulation is glued in place in 2"x6" exterior walls. This product far outperforms fiberglass batt insulation and other blown insulation systems that introduce water into the building envelope and tend to settle over time. The glue used introduces less than 10% moisture into the home, as well as holding the insulation in place over the lifetime of the product, creating a much tighter installation and eliminating settling, gaps, voids and depressions, which improves energy efficiency and decreases sound transmission. The insulation is treated with an EPA registered mold inhibitor to protect against mold. In addition, only fiberglass insulation made without formaldehyde—such as Spider Fiber —can pass Environmental Specification 1350, the toughest indoor air quality test in North America, with no formaldehyde detected. During factory tours, we invite visitors to touch this unique product, which feels like cotton.

Standard R-49 Attic Insulation
Johns Manville Climate Pro® formaldehyde-free blown-in loose-fill fiberglass is a premium alternative to fiberglass batt and cellulose insulation. You can be assured that your home is highly energy efficient with minimal heat loss. Unlike cellulose, it won’t decay or provide food for animals or microbes. It’s effective for the life of your home.


Tight Building Envelope & Air-Sealing Techniques
BENEFIT: High quality construction practices and air-sealing techniques reduce energy loss by keeping the heated or cooled air inside the home.

Standard Advanced Sealing Techniques. (1) We caulk all exterior sheathing seams. (2) Tape all house wrap seams and seal the bottom plate of the wall to the subfloor. (3) Our Full Box Construction® joins the walls to the floor system with 7/16" exterior wall sheathing, designed to maximize the shear wall strength and structural integrity of your home. Full-Box Construction also eliminates air infiltration between the walls and floor system, an area where most homes leak a tremendous amount of air. (4) All penetrations through the exterior envelope are sealed with foam. (5) Windows are sealed in to the rough opening with spray foam and then flashing tape is carefully applied.

Standard Indoor Air Quality Features
BENEFIT: Reducing indoor pollutants affects the health of the entire family.
Our indoor air quality begins with a tight building envelope
that keeps outdoor pollutants outside, and continues with
products that contribute to a healthier indoor environment. As a family based business, we have designed our standards to provide a healthier living environment for all families. Standards:
• Combination smoke/carbon monoxide detectors by all sleeping areas.
• High-efficiency sealed combustion HVAC equipment
• Formaldehyde-free Johns Manville fiberglass insulation made of 25% recycled content (6)
• Zero-VOC Sherwin Williams interior primer and paint
• Low-VOC adhesives and sealants. (7)
• Low-VOC oriented strand board used in exterior sheathing (8), floor decking (9) and roof decking.
• Caulking of exterior sheathing (1) and taping of exterior house wrap (2), reducing air infiltration.
• American-made gypsum eliminating risk of toxic foreign drywall.
• Mechanical ventilation to the exterior.
• A passive radon standpipe.
• Galvanized supply ducts, with optional galvanized returns.


Blown Insulation (standard) vs Batt (other builders)

BENEFIT: In a 2"x6" wall R-23 can be obtained (standard with Wardcraft).
In a 2"x4" wall (other builders) only an R-15 can be achieved with blown insulation.

For the best performance, an insulation material needs to fill the whole space, with no gaps, voids, compression, or incompletely filled areas. See the image to the left, batt insulation does not fill these while blown does.

  Batt Insulation
(other builders)
Blown Insulation (Wardcraft)


Vulnerable to Moisture

Wet fiberglass insulation loses all
R-value and has almost no insulating properties until it dries out. Moisture
may contaminate insulation in attics, a primary location for fiberglass batts — due to persistent roof leaks or from simple condensation as moist warm
air from living spaces below accumulates in the attic and condenses when temperatures drop at night, saturating
the insulation.

Our blown insulation will not rot, mildew or otherwise deteriorate. JM Spider insulation will not hold moisture or permanently lose R-value
Mold Mold Can Thrive if Moist

Airborne mold spores that settle in the fibers of fiberglass insulation thrive
when exposed to moisture from water vapor in the air or condensation. Mold can be a source of unhealthy indoor air quality and produce allergic symptoms
in susceptible individuals.

Mold and mildew resistant – fiber glass is naturally mold resistant; adhesive contains an EPA-registered mold inhibitor to further protect the product from mold and mildew


Why do you want Blown vs Batt?

Even a small gap in insulation (as shown above) that permits unrestricted flow of heat energy can reduce a wall or ceiling’s overall heat resistance, known as its R-value, by as much as 50 percent. Wardcrafts blown insulation is denser and offer more effective protection against air leaks than batth fiberglass insulation. Because fiberglass has low density air passes through it easily. The Green Home Guide states "batt insulation is the method of last resort from an energy efficiency standpoint."



When Choosing a Builder, Keep in Mind

Site builders use 2"x4" construction thus a bid could be less, and as described above Wardcrafts walls have R-23 where the top you can achieve in a 2"x4" wall is R-15. This means your home will not be as energy efficient. With wind chills hitting -25 this winter and considering you will spend a decade in your home, the initial investment will pay for itself many times over in increased energy savings. Wardcraft builds will quality products, we do not cut corners or use “builder grade.” We believe in giving you a quality home you will be happy with for decades. Many of our homeowners are now buying their second Wardcraft. The quality is simply unmatched.