Following
are some of the questions we've been asked about Spray Foam Insulation
What Is Soft Open Cell Spray
Foam?
Open Cell Foam is an insulation and air sealing system that is ideal for
residential applications. An application of Spray Foam combines both a
material and a service. The material is a lightweight foam compound. The
service is custom installation of each stud cavity or rafter cavity of
a building directly on the construction site by trained, licensed installers.
It is much more than just another insulation. By virtue of its low permeability
to air infiltration, its adhesion to other building materials and its
flexibility, it provides good air leakage control, moisture control, and
sound control, as well as great insulation. All in one application.
Does Spray Foam Insulation Have
Building Code Approvals?
Yes! Foam has approval of all four major building codes in the United
States and the Canadian building code. In fact, it is one of the most
extensively tested insulation products ever. Concern in the 1970's over
the excessive off-gassing of an early foam product called urea formaldehyde,
and related concerns in subsequent years over the health effects of other
insulating products, specifically asbestos and fiberglass, have resulted
in some of the most thorough and sensitive emissions testing of a new
building product to date. Based upon the results of this stringent testing,
Spray Foam met the requirements of the building codes and subsequent re-certifications
as required on a periodic basis.
What Are The Advantages Of Foam?
The major advantage of Spray Foam is that it does more than just insulate.
It also windproofs wall and ceiling cavities from air movement, with a
3 1/2" sample of foam proving to be about 24 times less permeable
to air infiltration than a similar thickness of fiberglass batt. In addition,
the insulating power is not diminished by lower temperatures or by air
movement. Its R-value performs as stated. By contrast, some building experts
state that an R-13 fiberglass batt in the presence of a 10 mile per hour
breeze (the real world) diminishes the insulating power of a batt to an
R-5! Hardly the kind of protection from heat and cold you were hoping
to arrange for your family.
What Is Spray Foam Insulation
Made Of?
Spray Foam is an organic material developed from products of the petrochemical
industry. It is a two component system that is sprayed like paint. The
chemical constituents are similar to those used in the manufacturer of
many products already in your home, such as upholstery foam and the foam
used for pillows and mattresses---although the properties of the foam
are different.
Spray Foam is an environmentally friendly urethane in which the ozone-robbing
CFA's have been replaced with air and water.
How Long Does It Take To Cure?
The foam is created within seconds after spraying. You can watch it expand
within seconds to 120 times its original volume, literally before your
eyes. It completely cures within a few minutes.
Does Open Cell Soft Foam Absorb
Water?
No; it looks like a sponge but it is actually hydrophobic, i.e. it repels
water. If placed in water it will float, and on removal, it will dry rapidly
with no loss of insulating properties. If you ever have a roof leak or
plumbing leak in your home which would soak the insulation, the water
will ultimately settle out and it will not damage the foam. We can't say
the same for other insulation. Water breaks down the glue in a fiberglass
batt so the batt is destroyed and loses its effectiveness. Water also
turns cellulose (ground newspaper) to mush and it dries out VERY slowly
(have you ever tried to dry out a wet newspaper?). The cellulose settles
into a lump leaving a large un-insulated cavity in the wall. Of course,
if it remains wet long enough, it can cause wood to rot and foster mold
or mildew growth within your walls.
Does Open Cell Foam Entrap Water?
No. As stated above, Spray Foam is an opened cell foam which is ideal
for architectural purposes. The foam breathes slowly, and any moisture
in the buildings' concrete or lumber can escape through the foam as the
building dries out, thus eliminating any risk of lumber rot or mildew
usually associated with materials that trap moisture.
How Long Does Spray Foam Last?
Does It Change Physically?
Aging is not an issue with Spray Foam. It is inert, and its physical and
insulating properties are constant.
Environmentally Speaking, Is
There Anything To Worry About?
No. Spray Foam has been thoroughly tested. Once it has aged for 30 days
it is a stable product and no longer has any detectable emissions. Spray
Foam has been used in many of the American Lung Association "Health
Homes" being built around the U.S. In addition to the ALA use, Foam
Insulation is also the only insulation that has an
Are There Glass Fibers Or Formaldehyde
In Spray Foam?
No to both. Glass fibers have been listed as a suspected carcinogen by
the EPA and most fiberglass batt manufacturers now print a warning label
on the wrapper. Formaldehyde was present in an early commercial foam called
urea formaldehyde which was also used in residential applications in the
early 1970's. Spray Foam is free of both glass fibers or formaldehyde
and is a great choice for insulating your new home. |