SETTLEMENT AGREEMENT

                                      among

                         ISO BLOCK PRODUCTS (USA), INC.,

                           R-S PLUS INVESTMENT CORP.,

                           JOSEF RATEY, an Individual

                                       and

                           HELGE SEIDEL, an Individual


         This Settlement  Agreement is entered into effective as of November 19,
1996,  between ISO BLOCK  PRODUCTS  (USA),  INC., a Colorado  corporation  ("ISO
BLOCK");  JOSEF  RATEY,  individually  ("Ratey");  HELGE  SEIDEL,   individually
("Seidel"); and R-S PLUS INVESTMENT CORP., a Florida corporation, ("R-S PLUS").

                                R E C I T A L S :

         On March 28, 1994,  the Company  entered into an Agreement  and Plan of
Reorganization  ("Exchange  Agreement") with R-S Iso-Block  Produktions  GmbH, a
German limited liability company ("Iso-Block GmbH"), Josef Ratey, an individual,
Helge  Seidel,  an  individual,   and  R-S  Plus  Investment  Corp.,  a  Florida
corporation ("R-S PLUS").  Pursuant to the Exchange Agreement, on March 31, 1994
the  Company  purchased  from Ratey and Seidel  all of the  equity  interest  in
Iso-Block GmbH, and purchased from R-S PLUS all of its right, title and interest
in  and  to  Iso-Block  GmbH,   including  all  R-S  PLUS  property  theretofore
contributed  to  Iso-Block  GmbH and all R-S  PLUS'  rights  to  Iso-Block  GmbH
profits, in exchange for the issuance of an aggregate of 2,000,000 shares of the
Company's  authorized but heretofore  unissued  common stock,  no par value (the
"Exchange   Shares").   The  Exchange   Shares  were  issued  in  the  following
proportions:  1,000,000 shares to R-S PLUS, 900,000 shares to Ratey, and 100,000
shares to Seidel. In addition, Ratey, Seidel and R-S PLUS received options for a
two-year  period to purchase an aggregate of not more than  1,000,000  shares of
the  Company  at a nominal  price in order to  prevent  their  aggregate  equity
interest  in  ISO-BLOCK  from  being  diluted  below  57%  of the  ownership  of
ISO-BLOCK's common stock.

         The parties, wishing now to enter into this Settlement Agreement and to
cancel the issuance of the Exchange  Shares,  have  designed  this  Agreement to
settle their  respective  differences and pretermit  potential  litigation among
them.

         NOW,  THEREFORE,   in  consideration  of  the  mutual  representations,
warranties and covenants set forth below, the parties agree that:

         1.  Settlement.  On the terms and  subject  to the  conditions  of this
Agreement,  R-S PLUS,  Ratey and Seidel each  hereby  agree to  irrevocably  and
forever  settle,  forgive and discharge all their existing and potential  claims
against  ISO-BLOCK,  against all  persons  now or formerly  serving or acting as
officers,  directors or employees of ISO-BLOCK or legal counsel,  accountants or
other advisers or consultants  to ISO-BLOCK,  both known and unknown,  effective
upon all parties  having  signed  this  Agreement.  The parties  agree that this
Agreement  shall  pretermit the need for litigation  and litigation  expenses in
relation to any action or lawsuit by ISO-BLOCK against the other parties or vice
versa. All parties acknowledge the sufficiency of the consideration respectively
realized by them pursuant to this Agreement.

         2.  Issuance  of  Options  to  Ratey;  Settlement  Shares.  (a) In full
settlement of all existing claims, if any, and all potential claims of R-S PLUS,
Ratey and  Seidel  against  ISO-BLOCK,  Ratey  shall be  allowed to keep and not
cancel an aggregate of 250,000 of the Exchange  Shares issued to Ratey  pursuant
to the Exchange Agreement (herein referred to as the "Settlement  Shares"),  and
ISO-BLOCK  shall issue and deliver to Ratey  options to purchase an aggregate of
240,000  shares of the common  stock of  ISO-BLOCK  at the price of Eighty Cents
(US$0.80) per share, subject to customary adjustments, for a period of two years
from the effective date of this Agreement (the "Settlement Options").

ISO-BLOCK_________  R-S PLUS__________  Ratey_________  Seidel _________
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A certificate  evidencing the Settlement  Shares will be issued only after Ratey
has returned to ISO-BLOCK the certificate evidencing the 900,000 Exchange Shares
originally  issued to Ratey.  All or any part of such  shares or options  may be
conveyed  by  Ratey  to other  parties  to this  Agreement  or,  subject  to the
restrictions below, to third persons, as he sees fit. Upon the effective date of
this  Agreement and the issuance of these options,  neither R-S PLUS,  Ratey nor
Seidel shall have any further claim of any kind against ISO-BLOCK.

         (b) Ratey  acknowledges  and agrees that the Settlement  Shares and the
shares  purchasable  upon  exercise  of the  Settlement  Options  have  not been
registered  under the  Securities Act of 1933, as amended  ("Act"),  in reliance
upon  exemptions from  registration  provided by Section 4(2) of the Act, on the
grounds that the  issuance of such shares does not involve any public  offering.
Ratey acquired the  Settlement  Shares and will acquire any shares upon exercise
of the Settlement Options for his own account,  with no present intent to resell
or make a  distribution  of all or any  portion  thereof  except  to R-S PLUS or
Seidel. Ratey acknowledges that all such shares are "restricted  securities," as
that term is defined in Rule 144 of the  General  Rules and  Regulations  of the
Securities and Exchange  Commission  ("SEC") under the Act and understands  that
such shares must be held indefinitely,  unless they are subsequently  registered
under the Act or an exemption from such  registration  requirements is available
for their resale. Ratey understands and agrees that the prior written consent of
ISO-BLOCK  will be  necessary  for any  transfer  of any or all of such  shares,
unless  and until the  shares  have  been duly  registered  under the Act or the
transfer is made in  accordance  with Rule 144 under the Act. Any  transferee of
Ratey's  to whom  Settlement  Shares or  Settlement  Options  are  issued may be
required to execute an  investment  letter  satisfactory  to ISO-BLOCK  prior to
ISO-BLOCK's transfer of the shares or options.

         (c) Ratey  acknowledges and agrees that, unless and until the legend is
removed in accordance with law, any and all certificates which issued evidencing
the Settlement Shares or shares obtained upon exercise of the Settlement Options
shall  contain  a  customary  form of  investment  legend in  substantially  the
following form:

                  "The  shares  represented  by this  Certificate  have not been
         registered  under the  Securities  Act of 1933, as amended (the "Act"),
         and are  "restricted  securities"  as that term is  defined in Rule 144
         under the Act.  These  shares  may not be  offered  for  sale,  sold or
         otherwise  transferred  except  pursuant to an  effective  registration
         statement under the Act, or pursuant to an exemption from  registration
         under the Act, the  availability  of which must be  established  to the
         satisfaction of the Company's counsel."

         3.  Cancellation of Certain of the Exchange Shares and Certain Options.
The parties  acknowledge  and agree that  ISO-BLOCK has returned to the original
makers several of the Deutsche  Grundschulden acquired by ISO- BLOCK pursuant to
the Exchange  Agreement and all amendments  thereto,  which act would require in
any event  adjustment in the number of Exchange Shares  properly  issuable under
the  Exchange  Agreement.   The  shares  described  in  this  paragraph,   which
constituted  most of the 2,000,000  "Exchange  Shares" issued to R-S PLUS, Ratey
and Seidel,  shall be cancelled and voided as if never issued, such cancellation
to be effective upon all parties having signed this  Agreement,  irrespective of
when the original  stock  certificates  are received by ISO-BLOCK and physically
marked as cancelled:

          (i)  All 100,000 of the Exchange  Shares issued to Seidel  pursuant to
               the Exchange Agreement;

          (ii) 650,000 shares (that is, all but 250,000) of the Exchange  Shares
               issued to Ratey pursuant to the Exchange Agreement; and

          (iii)987,500  shares  (that  is,  all  but  12,500)  of the  1,000,000
               Exchange  Shares  issued  to R-S PLUS  pursuant  to the  Exchange
               Agreement,  which  includes  200,000 of such shares  subsequently
               transferred   to  Arnold   Stolle  and  100,000  of  such  shares
               subsequently transferred to Jan ter Stege.

         Pursuant to Section 1.06 of the Exchange Agreement, R-S PLUS, Ratey and
Seidel were issued  options to purchase an aggregate of 1,000,000  shares of the
authorized but unissued shares of ISO-BLOCK in order to prevent dilution. All of
such options shall be cancelled and voided as if never issued, such cancellation
to be effective upon all parties having signed this  Agreement,  irrespective of
when the original option  certificates  are received by ISO-BLOCK and physically
marked as cancelled.  All other options and similar rights,  if any,  heretofore
issued to R-S PLUS, Ratey and Seidel shall be cancelled as if never issued,  for
no additional consideration other than as set forth in this Agreement.


ISO-BLOCK_________  R-S PLUS__________  Ratey_________  Seidel _________
                                                                          Page 2





     4.  Deliveries  and Conditions  Precedent.  On the terms and subject to the
conditions  of this  Agreement,  the  parties  each agree to do and  deliver the
following things:

         (a) ISO-BLOCK shall promptly arrange for three certificates  evidencing
the Settlement  Shares (100,000,  100,000 and 50,000) and the option  evidencing
the Settlement Options to be issued and delivered to Ratey.

         (b) Ratey shall  return to ISO-BLOCK  the  certificate  evidencing  the
900,000 shares  required by Section 3 hereof to be cancelled.  His failure to do
so shall entitle  ISO-BLOCK to  unilaterally  cancel and rescind the  Settlement
Options.  Ratey  may  not  transfer  any  or all of  the  Settlement  Shares  or
Settlement Options until the certificate evidencing such 900,000 shares has been
returned to ISO-BLOCK and a new  certificate  issued  evidencing  the Settlement
Shares.

         (c) Seidel shall return to ISO-BLOCK  the  certificate  evidencing  the
100,000 shares required by Section 3 hereof to be cancelled.

         (d) R-S PLUS shall return to ISO-BLOCK the certificates  evidencing the
987,500  shares  required  by  Section  3  hereof  to  be  cancelled,  ISO-BLOCK
acknowledging the receipt of certificate  number 1541 evidencing  687,500 shares
issued in the name of R-S PLUS.

         (e) Ratey shall resign from ISO-BLOCK's board of directors.

         5. Miscellaneous. All of the undersigned parties have the unconditional
right,  power and authority to execute,  consummate and perform this  Agreement.
Upon due execution,  this Agreement  shall be valid and binding upon the parties
and their  respective  successors,  enforceable  in  accordance  with its terms,
except as  enforceability  may be limited by  applicable  federal or state laws.
This Agreement may be executed in  counterparts,  at different times and places,
all of which shall constitute one and the same instrument.  This Agreement shall
be governed by and interpreted  under Colorado law, and shall be construed as if
all parties hereto  participated  equally in its preparation  and drafting.  Any
dispute arising  hereunder shall be settled by arbitration in Denver,  Colorado,
in  accordance  with the  rules of the  American  Arbitration  Association;  and
parties to such an arbitration  proceeding  shall pay their own respective legal
fees and other costs. Notwithstanding any other language of this Agreement, this
Agreement shall be effective among ISO- BLOCK, Ratey and R-S Plus even if Seidel
fails for any reason to sign this Agreement.

         IN  WITNESS  WHEREOF,   the  undersigned  parties  have  executed  this
Agreement and Plan of Reorganization and initialled every preceding page hereof,
effective as of the date first above written.


ISO BLOCK PRODUCTS (USA), INC.                R-S PLUS INVESTMENT CORP.



By /s/ Egin Bresnig                          By /s/ Josef Ratey
- -------------------                          ------------------
Egin Bresnig, Chief Executive Officer         Josef Ratey, President


JOSEF RATEY, Individually                     HELGE SEIDEL, Individually


By /s/ Josef Ratey                            By /s/ Helge Seidel
- ------------------                            -------------------
Josef Ratey                                   Helge Seidel




ISO-BLOCK_________  R-S PLUS__________  Ratey_________  Seidel _________
                                                                          Page 3






                       NOTARIAL ACKNOWLEDGEMENT BY PARTIES



STATE OF COLORADO                   )
                                    ) ss.
COUNTY OF DENVER                    )


         I HEREBY CERTIFY that before me, the  undersigned  Notary Public,  duly
commissioned  and qualified in and for the  jurisdiction  aforesaid,  personally
came and  appeared  Egin  Bresnig,  the  chief  executive  officer  of Iso Block
Products (USA), Inc., and Josef Ratey, both individually and as President of R-S
Plus  Investment  Corp.,  all being persons known to me and each of whom,  after
being duly sworn,  did depose and say that he executed the foregoing  Settlement
Agreement as his own free act and deed.




                                        By /s/ John D. Brasher
                                        ----------------------
                                        NOTARY PUBLIC



(SEAL)                                  My Commission Expires:



ISO-BLOCK_________  R-S PLUS__________  Ratey_________  Seidel _________
                                                                          Page 4