A update in January
2000 was distributed addressing the requirements for each
of the model building codes as it pertains to barrier and
drainage EIFS. Some changes have taken place since the last
update; therefore, listed below are the current requirements.
BOCA- The 1999 National Building
Code has been published and requires the following:
EIFS with or without a secondary weather resistant
Special inspectors are required on all types of
construction except when the EIFS is installed over masonry
or concrete walls.* *
It is important to note that the local code official has the
authority to disregard this requirement if he/she chooses.
All details that are a part of our detail package
must be tested to show that they are designed to prevent water
penetration. To date we have not conducted tests since EIMA
is working with BOCA to finalize the test procedure.
BOCA has extended all Barrier EIFS evaluation
reports for 1 year without justification of details as noted
are not required for EIFS with drainage.
A weather resistive barrier of No. 15 felt or
equivalent shall be installed over all sheathing substrates.
A means of drainage must be created between the
insulation board and the weather resistive barrier except
when concrete or masonry substrates exist.
All penetrations and termination's must be flashed
to maintain weather resistance.
ICBO - The Acceptance Criteria for External Insulation
and Finish Systems AC24 dated November 1999 requires the following:
EIFS with or without a weather resistive barrier.
Barrier type systems are limited to types I through
IV construction. Barrier systems are not allowed to be installed
in type V construction (i.e. combustible construction).
inspections are not required.
Required on all Type V construction (i.e. combustible
construction). EIMA submitted revised acceptance criteria
to ICBO that would limit drainage to Type V, Group R, Division
1 and 3 construction. This was voted on and accepted at a
meeting in Whittier, CA on October 15, 1999 and is now in
the AC24 Criteria dated November 1999.
SBCCI - There are no specific requirement's or
limitations for Barrier Systems or EIFS with drainage. It
is strictly a design preference.
ICC - A final draft was voted upon during the week
of September 13, 1999 in St. Louis. The draft is similar to
the requirement's of BOCA's 1999 code. It was published in
March, 2000 and is now available from ICBO, BOCA or SBCCI.
It is now up to the individual states to adopt or not.
IRC - The IRC will replace the CABO One & Two Family
Dwelling Code. It went into effect in January, 2000 and requires
EIFS with drainage over a weather resistive barrier.
Special Inspections will not be required.