Frequently Asked Questions
Preformed shapes are not necessary with Reliable Void Forms (RVF). RVF can be
cut to fit without losing the strength or
moisture resistance. You can cut a hole
in the middle, remove a corner, or cut a
shape to fit around a pipe or pier without
worry. Construction foam is also a good
way to fill small gaps if you prefer not to
cut forms. mattis, pulvinar dapibus leo.
Just like with carton forms, a good vapor
barrier with taped joints is all that is
required. Some customers also chose to
tape the hardboard panels.
Yes, this system works well when placed
are ok to use:
monolithic. It is not necessary but some
customers have poured a thin mud seal
over the covered Reliable Void Forms in
the beams for protection and to form a soil
retainer while they prep the slab and then
place the foundation.
Reliable Void Forms are 24” x 24”, optimized
for installer handling, shipping, storage and
production cost. Since the RVF only weighs
3 lbs. each, installers can pick up several
in a stack and drop them one at at time to
E. The ground should support the form
without sinking into the soil
F. The forms should not be exposed to
moisture for more than 48 hours
G. If you have doubts, replace the forms
quickly cover a large area.
No. Experienced users should be able
to install RVF quicker than carton forms.
Customers like that RVF can be torn or cut
to shape still hold their strength. No more
complicated puzzle layouts, no cutting and taping carton forms with partitions hoping
they won’t fail.
Reliable Void Forms are stacked on 4×4
pallets, shrink wrapped for stability in transit
and covered with a poly film pallet cover
for job site storage protection. No costly
storage trailers are in the way at the job and
no back-haul charges for freight.
RVF can be stacked to achieve a deeper
void. Place the first layer as normal. Stack
the second layer upside down so the forms
are face to face with good stability. Put
cover board on the top only, not in between
the stacked forms. Then cover with vapor
barrier taped securely at all joints. We
recommend you start at the perimeter so
that you do not have cut forms on the edge.
Then work around the piers so that any cut
forms are in the middle, away from edges.
A. They should support someone walking
on them without deflection.
B. You should not be able to compress the
form with your hand
C. If a form weighs more than 4 pounds it
should not be used
D. RVF can be used on damp soil, but NOT
standing water
E. The ground should support the form
without sinking into the soil
F. The forms should not be exposed to
moisture for more than 48 hours
G. If you have doubts, replace the forms