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Home My WebLink AboutRe: 1997 bldg code ��i�l 5 �'r�c-��S ��- l�sw� Lyle Oman From: Lyle Oman Sent: Thursday, December 11, 2008 4:04 PM To: 'dfkay@aol.com' Subject: 1997 building code Dear Mr. Kleifgen In 1998 the State Of Minnesota adopted the 1997 Uniform Building Code.Appendix chapter 18 was not adopted by state therefore was not enforced.The provisions for foundation damp proofing were contained in chapter 14 of the Uniform Building Code.These provisions did not require damp proofing of below grade foundation walls that had earth on both sides. If you have any further questions please feel free to contact me at my office. Lyle Oman Building Official City of Orono TO SCHEDULE AN INSPECTION, CALL: 952.249.4600 952.249.4625-Direct Dial 952.249.4600- Main 952.249.4616- Fax www.ci.orono.mn.us ................................................................................ ................................................................................ Office Hours: Monday- Friday 8:00 am to 4:30 pm ................................................................................ ................................................................................ Physical Address: 2750 Kelley Parkway Orono, MN 55356 Mailing Address: - PO Box 66 Crystaf Bay, MN 55323-0066 1 � ��"'�. ��`i�� c�c � � zoos � �, L r ry 0 F' p�.e, ��.t �, CITY OF ORONO �� 1 `� � ��c3 ( ��iT1�l ' �-�1,�. 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L��!� �� `�4�-� 1� N D 2--c-s� ?� t p � l\L�$�' ��,�4 i— �'��-- �-�� , � ��u� �� P �,,y► �— S l�ti.2.5D�/.R.'�JL � l"��{ , �� L.��l� �e.aZi'�� -bd a A�ls0 �� ,i} �� z�� e4-�� Ol�yll�'t�'� � J�� '� `�'o�,p �''b+Faa—�� o ,�.�� 6�� -�—�'� "�'�_ G1� 4� a��T> � .� '� � �}-N 1> 'L�12-t �c� 'Z_'d�i `Z—�� e�� l t�? ��-�� / ��b�l ��'- LS l�+�s��4/eC� 1 oZC7op i�.�A'� �6�� ?1l?� O�-' t�rY 7 aq,t,t r� ��-", sr�c�-zoe� 2 d 2�r-sors �-�-o� ��r-- Q� 9-"�� `� l 5 Yf'�� vf'�!.1 �25� �1',�c�l-t ^ G,�-P�i2 ? � a�' �'6��. coo� — s�� t4b�� 2S �� Z��a��r,,�� fi-� 'l�-a-��' L�'c+�� '�.� �� r� y� ta� . J �-v�y�v�St:r-Z . ti�� ^ �S/ ' �3�'7 — ��3'Sp G�. �� / � 3�e¢ �- ��o� � � 'W� A-�t... ��'K�}� �j �o�, .�eyr'l CITY OF 'l�rater l THE BIRTHPLACE OF MINNESOTA 216 N.4ih Street Cindy Shilts Stillwater,MN 55082 Burlding Official (651)430-8827 MN Cert�ica'tion#1939 (651)43Q8810 Fa� —_—__ _.__ email:cshilts@ci.sdilwatecmn.us � ----- — � �� - -I" � � �� -Tn��1 � �-��: .�� , , � .� t . , �� : �� c:.�� =�. , 1 �� / ��-(:- �:��1`_� `�L � ��>> �' ` � � , � `; . ; , i �� ..� �,..ti� �,,�1�� -- t.�.. , ;�. .�� , r „ ., _ - i ��lC�.'�%��-� �' � � �i I � � �-�-� �'`} C.� �.�' -� � s-�-- 1�� < . .� _.,,�--�_ , __�, , j � �� cY`�_(� --�.�` � ZC4� lY�{,`�ri_ � � � � � �� ,�`f, �w �� ? /`��,� �� _�1--� � ,E . .,f ��' �J�—. ..-�-""" ��i r. __�__—� �-�� :�- �)-'!�L= �--�� i r �,�.._. � L-% �,�'1�'�" 't�'�`��,�.,t,ti_��. ��-i'�G'i�'( � � 1997 UNIFORM BUILDINc.;C:Uut "' 1403.3 Chapter 14 EXTERIOR WALL COVERINGS SECTION 1401 —GENERAL 1402.3 Waterproofing Weather-exposed Areas. Balconies, landings,exterior stairways,occupied roofs and similar s�rfaces 14011 Applicability. G�terior �vall ro��erings for the building exposed to the weather and sealed underneath shall be water- shall provide weather protection for the building at its exterior proofed and sloped a minimum of i/q unit vertical in 12 units hori- boundaries. zontal(2%slope)for drainage. Exterior��all cavering sh�ill be in accordance with this chapter 1402.4 Dampproofing Foundation Walls. Unless otherwise and as specified by the applicable provisions elsewhere in this ��ppr�ved by the building official, foundation walls enclosing a code. ror additional provisions, see Chapter 19 for concrete, hasement below finished grade shali be dampproofed outside by Chapter 30 for lightweight metals,Chapter 21 for masonry,Chap- �p�roved methods and materials. ter 23 for steel,Chaptcr'_3 for wood.Cha�ter 25 for gypsum wall- board and plaster, and Ct�aptcr 26 for plastics. Also, sec the 4025 Window Wells.All window wells shall extend below the � following: indow sill height. SECTION SUI3JECT 601.5.4 Walls fr�mting on streets SECTION 1403—VENEER 60?.1 Materials in Type I coiistruction 1403.1 Scope. 603.1 Materials in Type fl construction 604.3.1 Exterior walls in Type III construction 1403.1.1 General. All veneer and its application shall conform G0�.3.1 Esteriur walls in Type IV construction to the requirements of this code.Wainscots not exceeding 4 feet 6U6.1 Materials in Type V construction (1219 mm)in height measored above the adjacent ground eleva- tion for ex[erior veneer or the finish floor elevation for interior ve- 1401.2 Standards. Tlie standards listcd below lahcled a"UBC neer may be exempted from the provisions of this chapter if standard"arc als�i(isted in Chapter 3�, Part II,and are part of this approved by the building official. code. l. UBC Standard 14-1. KraCt Waterproof Building Paper 1403.1.2 Limitations. Exterior veneer shall not be attached to wood-frame construction at a point more than 30 feet O144 mm) 2. UIIC Standard 1�-2, Vin��l Siding in height above ihe noncombustible foandation, except the 30-foot(9144 mm)limit may be increased when speciai construc- SECTION 1402—WEATHER PROTECTION tion is designed to provide for differential movement and when approved by the building official. 1402.1 Weather-resistive Barriers. All weather-exposed sur- 1403.2 Definitions. For the purpose of this chapter, certain faces shall have a�veathcr-resistive barricr to protect the interior terms are defined as follows: wall covcring. Surh barrier shall hc eyu<ii t��that provided for in gACKING as used in this chapter is the surface or assembly to UBC Standard ld-I for kraft �vaterprouf building paper or asphait-saluratcd rag felt. I�uilding paper and felt shall be free w'hich veneer is attached. from holes and brcaks other than those created by fasteners and VENEER is nonstructural facing of brick,concrete,stone,tile, construction s�stcm due to auaching of the building paper, and metal, plastic or other similar approved material attached to a shxll bc applicd over stud5 or sheathing of all exterior walls.Such backing for the purpose of ornamentation, protection or insula- fe(i or paper shall be applied horizontally, wilh the upper layer tion. lappcd over the I�nver{ayer not less than 2 inches(51 mm). Where Adhered Veneer is veneer secured and supported thro�gh ad- vertical joints occur, felt or pa��er shall hc lapped not less than hesion to an approved bonding material applied over an approved 6 inches(152 mm). backin g• A ��eather-resistive harrier mav be omitted in thc following Anchored Veneer is ve�eer secured to and supported by ap- cr�5�s: proved connectors attached to an approved backing. 1. When eaterior covcring is of approv�d weatherproof panels. Exterior Veneer is veneer applied to weather-exposed surfaces 2. In back-plastered construction. as defined in Section 224. 3. When there is no human occupancy. Interior Veneer is veneer applied to surfaces other than weather-exposed surfaces as defined in Section 224. 4. Over water-repellcnt panet sheathing. 5. Under approved paperbacked metal or�t�ire fabric lath. 1403.3 Materials. Materials used in the application of veneer shall conform to the applicable requirements for such materials as b. Behind lath and portland cement plaster applied ro the set forth elsewhere in this code. underside of roof and cave projections. For masonry units and mortar,see Chapter 21. 1402.2 Flashing and Countei•flashing. Exterior apenings e�- For precast concrete units,see Chapter 19. posed to the weather shall be (7ashed in such a manner as to make For portland cement plaster,see Chapter 25. them weatherproof. All parapets shall be pro��ided�vith coping of a�proved materi- Anchors,supports and ties shall be noncombustible and corro- als.All tlashing,cuuntert7ashing and coping,when of inetal,shall sion resistant. � have a minimum thickness of U.019-inch(0.48 mm)(No.26 gal- When the terms "corrosion resistant" or "noneorrosive" are vanized sheet metal gage)conosion-resistant metal. used in this chapter,they shall mean having a corrosion resistance 1-141 � __._�_.__.._-.---- � ._ __ _. , _ , ---- _ i � i' ; / � A report by Principal Engineering dated June 25,2008 is attached.The report addresses the causes and makes recommenda.tions for remediation of the observed foundation damage. ased on the soil analysis and report issued by Principal Engineering it is our opinion that soil conditions at the back elevation of the home required the installation of damp proofing and that the damproofing"shall ea�tend from a point 6 inches above grade, down to the top of the spread portion of the footing." [Reference 1997 UBC Appendix 18 Section 1824, Subsection 1824.1�. No other new observations were made during the inspection at this location. Interior Insnection• Carpet was pulled back in the lower level family room and bedroom. The following new observations were made: • Floor tile damaged along interior of rear elevation • Damage to gypsum wallboazd observed in the lower level family room and bedroorn • At the exterior perimeter, and along the common wall between the family room and bedroom, a self-leveling grout had been applied to a maximum thickness of approximately 3/4 inch. Attic Insnectian• No new observations were made. Conclusions• The following additional conclusions aze made: • It appears that the purpose of the self-leveler was to correct differential settlement in the slab which began prior to completion of construction. • Additional conclusions and recommendations for remediation of the foundation structure can be found in the attached Principal Engineering report. Recommendations: The following additional recommendations are made: • Excavate azound the perimeter of the back and right elevations to the top of the spread footing and install damproofing. • Additional recommendations are made in the Principal Engineering and previous FBS reports. Discovery is ongoing.Additional testing and inspections may need to be performed and additional and/or supplemental information and opinions may be contained in future reports issued by Forensic Building Science, Inc. This report is the exclusive property of the client noted previously and cannot be relied upon by a third party, Copies of this �report are released to third parties only by written permission of the client. , � i � ; �Cf� �e r � � 2�Q7 J ; � f Forensic Building Science, Inc. ; 1043 Grand Ave. Box 137 ; ! S� Pauf, Minnesota 55105 ; (651) 222-6509 i teirmit�rla�lar�nsicbui7dinasaerx�a�m i 1 ; i � PI'OJ�Ad�3S: Brad&Lynn Adams 3745 Ja�obs Mill Road � Orono,Minnesota 55356 � � � �,, �December 14,20(}7 � i DRAF�"T FIELD REPORT FOR INTTIAL FORENSIC INVESTIGATION k i t ( . Background Information: � � i j �`�orensic Building Science Inc. (FBS)was contacted by the Owners and asked to provide ' � a visual inspection of the exterior of the home.Our first visit to the site was on October � � 29,2007,shortly after the Owner discovered that the air exchanger had been installed ' incorrecfly and siu�ace mold was developing in one of the upstairs bathrooms.At that ' time we condueted a visual inspection of the exterior ciadding system and fenestration products.After this site visit,it was recommended that additional inspectians and testing ; � be performed ' � ' � The following inspections were performed on November 7,2007 during Phase 1 ; � investigation: j � • Infrared thermography and exterior inspection.(See Photo Log-Infrared Photos) � i • Moisdtre probe inspection of the exterior sheathing. ! � • Interior First Pazty inspection.(The results of this inspection are included in a ( � separate report.) � � ! ( PLase II—Moistare Probing: ! � ; � A total of 26 probes were performed on the home to determine moisture levels of the j � sheathing behind the exterior cladding.High moisture readings can indicate a failure of ? � the homes ability to properly shed water.Moisture readings of sheathing between 6—8% j ; considered normal.Probe locations were determined by the Phase I infrazed inspection ? and at typical locations where high readings are often found in homes of this style.Probes ' were performed with a Delmhorst BD-2100 moisture meter,which was calibrated just ; before the inspection was performed. � � s i . ' t � i � � 1 � � � � ! I ( � � i MO1St1liC PfOtiC RC�l�tS' i � � Probe# Locatiou 'X Moispr�+e i � 1. Left Elevarion of gatage 6.3 ; 2. Le8 Elevation of garage 6.5 i 3. Left Elevadon of g�age-below wmdow 6.6 ; 4. Le8 Eleva�io�,ai rear-below window 6.3 i 5. Le&Elevation,at rear-below window 6.0 6. Remr Elevatio4 aro�md oorna from prob�S dt 6-below window 6.0 7. R�ar Fdevation-bebw large lower tripk wind�ow 6.5 8. Rsar Elevation-be�ow lowar right fireplace exha�ut vmt 6.0 ; 9. Rea�Ekvation-below mof to wall i�tion 6.0 ' 10. Rear IIevation-below d�lc ledgra 9.S � 11. Rear Ekvation-i�elow deck ledger 6.1 12. Rear Elevarion-below porch,at bwe,r left comer of window 6.0 ; 13. Rear Ekvation-below soffrt,�Porch 6.1 � 14. Rear Elevaaon-balow roof ta wall i�section,kR of po�h 6.1 � ( 15. Rear Elevation-below main tloor window,kft of porrh 7.0 i 16. R�ear Elevation-bebw single right window,on de�C 6.5 i 17. Re,ar Elevation-rim area betweea main and up�pea 800rs 6.0 ; 18. Right Eievati�-below electrical meter 9S E - 19. Frant Elevation-right of fin�t rig6t window 7•8 ` 20. Fr�t Elevarion-below fra�t right window 6A i 21. Fina�t ElevaGion-below window to right of e�hyway 6.9 ' 22. Front Elevstion-below frieze board in entryvvay 6.1 23. Frorn Eleva�ion-below wmdow and planter box 10.7 24. Fr�t Elevation-below window and planroer box 10.3 ; Z5. Right Elevation-below upper right window 82 ; 26. Right Elevation-below PVC Pipe,co�a+ete tested 452 ' � The infrare�t�ing showed aiwmalies in the wall assembly at a number of locations. After conducting this portion of the Phase I investigation and comparing those results to ; � the moistin�e probing results FBS recominended to the home Ovvners that deshuctive ; for�nsic wall cuts be performed at four locations to answer the following questions: ; � • Why were the anomalies observed during the infrared tesring showing ; relatively dry readings during the moish�re probing? � � • What is the as-built condition of t�exterior wall assembly,ParticularlY ; window flashings and st�co system? I � • Has damage occurred at any of the four locations? � � Brad&Lynn Adams are the original Ow�s of the home.On tbpe Level,Inc.constructexi � ` the home far the Adams and certificate of aGrupancy was given in July of 2000.The i i hame Owner's instu�nce for the property is Arnerican F�nily.Tl�e Adam's have made � � one claim with their home Ovvner's insurance for roof damage.No other claims ha.ve i been filed prior to the time of these inspections. locations on our first site visit i�l to I An exam��on of the s�at several 1� concerns about 1i�e condition of the wall assemblies behind the�.Cracking aad E staining of the stucco were observed at a number of locations on the home.Also, i conccrns about installation and flashing of the windows were discussed with the Ovvner. � The Owners indica�ed thai they had nev�experiemxd bulk water intrusion into the home prior to our visit 1 � 2 � I � ; i • i i � � i Tl�stucco on the home is a traditional cementitious dir�ct applied exterior finish system ; as defined by ICBO ES Standard AC 59(effective date Febn�ary 1, 1993). This standard i places the responsibility for the stucco system on the sh�cco manufacturer a�d the shicco � coniractor.in this case,sin�ce the sh�cco is mixed and applied on site the stucco contractor fulfills both roles.Tbe minimum flashing standards established by ICBO ES Stm�dard � AC 59,Part VI,page 4 sub�t 1,2,3,4 were not met.Part V requiring an installation certificate be placed on file with the building official was also not met. ICBO ES Standard AC 11,A,�ceptance Criteria for Cementitious Exterior Wall Coatings(effective � dste Jaavary 1993)Part 6.0 flashing subsections 1,3,5,7 were also not followed Th+e ' E General Se�vices Adminishgtion Specifications W-79(a)sections on sashing(circa j 1968)were not followed. Additional gvidelines publishe�i by the Minnesota Lath and Plaster Bureau in January of 2000 wexe�ut followed.It s�ould be noted that the original �; ( sduxo was painted after campletion by the stucca cont�,ctar due to a color issu�e. ? 1 The roof materials consist of standa�d asphalt shingles with metal pre-formed valleys. ' Roof venting consisted of seventeen R-61 louver vents on the b�ck elevation.The soffit ; extends approx. l6"from the wall assembly and is const�ucted out of aluminum.The ; soffit is vented at one foot intervals.There are gut�rs on the front and�ck of i�home. i There is a four season porch aiui a deck on the rear elevation. No soffrt ass�mbly j inspection was performed. � � The home is a two story wood framed s4ructure with a walk-out ba.Sement an tt�rear i elevation.The elrterior cladding c�nsists of sh�cco on all four elevations.Manufactured � stone is also on the front elevation,along with accent trim installed around the windows. j � There is a friezs board at the stucco to soffit intersection along the left elevation of tl� : garage and on the upper wall assembly on the front elevation. � ; Andersen manufactured t�windows on the home.The windows are vinyl clad � I maintenance fiee casements.There had been no testing of the windows prior to the time ? of our investigatioa.A dining room window was adjusted by Anders�approx�mately I one year after the Adams purcha.sed the home due to opera.tion and haidware issues. � Published installation guidelines from Andersen available to�e framer,sh�cco contractor j and the ge,neral contractor at the time of the construction of the home required that the� ! cladding stop short of the window frame,the caulk be applied in the exp�nsion joint area ; aud that sealant be applied under the nailing flange assembly.Failure to do this can result � i in voiding of the warranty. ( � ( � The exterior wall assembly(working from inside out)consists of 1/2"Gyp.Board,4�i1 i E poly vapor retarder/air baaia continuously installed but not sealed,2x6 SPF studs,R 19 ; i Friction fit Sberglass batt insulation,fiberboard sheathing,and two la.yers of Grade"D" ; ` paper under the exterior cladding. ; E Te.�ting protocol dictatsd a mold test to determine extent,type,a�d volwne of mold � � observed by FBS during the invasive wall assembly testing.Bulk samples were taken and � forvvarded to Neil Carison,Cextified Indusirial Hygienist.Bulk sampling for mold was � conducted on the day of the forensic testing.l�e results of those tests will be i�cluded i�► this repor� 3 � � � 1 , i i � i Dae to the inform�an�+ovic�d by tlye Owner a�d the Phase I inspoctions,FBS ; recommended a Fore�sic Des�s�ctive Inspection be imtiated to determine if exterior bulk j water ino�ion had occmred,the exteat of the water intcusion,the ext�t of water f d�e ar�d the c�ause or so�ac,e of the water infiliration.The study iavolved curiing fo� � opeaings into the sh�a�o.In addition,FBS perform�inspections of the founda�ion and concrete$oor m the�R,along with an inspection of some i�ior wall assemblies. Chris Ar�,P.E.,p�m 1�e teshng Perf°rnned on December 4,2007. i The test locations vvere chosea to exsmine tl�e sub�trat�e and determine the me�hods used to in�all t�e�,the drainage eavelope,the sheathing,ins�ilation and vapor retarders i � aad the winc�ows.This on srte te.sbing was co�on D�cember 4,2007.The t,�ting ` � stsrbed at 930 a.m.s�d was oompleted at 130 p.m.The temperature was approximatelY ; 12 de�.+ees. 'I1�e sky was cloudy and tl�e wind spaed was 10-15 mph.Light snow was ; �img during this inve,stigation.The last meas�ble precipitation was 3 days prior to the � i�ting in the fami of�w. � i ; OBSERVATIONS• ' , � CIJT#1: 10:05 A.M.CST i The first ca#yvas c�e a#tt�e bottom left comer of the large triple unit window on the + lower level of the back elevation. � - - � a ,.�, �. - �'--4-�: , - i i . � . r�c-�,`` .' ; ,., - � g � ,-3 ` . .--:{ ;��:..._ - T"° S"�tz ��_C� � .v„��,-_ _ � tt I _ � I t ��-{�: l �� i � -- , � _ � The follown�obse�va�io�wea�e made: � • Cracks and discolorati�in sduxo prior to cutting. j • No sealant at stucco to wi�ow int�on. . No�on or co�trol jourt at stucco to window in�tersecfion. i ; • Shuxo less than�/."in thic�ess. ! � • Poot sex to lath • Water staining and fi+ost on fiberboard she�in.g. ! • Two layers of Grade"D"papea'observed behind st�x�co. • Reve�se la�of Ice 8t Water Shield tape and stucco paper over bottom fl�ge. • Fian�e be�t by oveadriven nail. , • Spac;ed caulking uot paforc�ed at bottom s�l�ange. j 1 • S��e � � 4 l ! � "s __ i i CUT#2: 10:40 A.M. . t Tl�seooa�d art involved re�val of st�cco at the lower left oorner of the SE facing � angled lowr,r level window on the bnck elevation. � �' �;T..� � � � � - s � '^` ' � ' = ' I � ' ` . i � 7 f Tl�e following o�ons weae made: � • Stucco thic�less than 3/:widi poor or no sex to lath. � , • Ice&Wa�Shield ova bottom flange of window. ? ; • Sfi�cco fa�ers mis�ed solid fiaming. i • Reveax lap of"D"paper. ; . • Tio gap betv�een stuc�o�d window frame assembly. � • Nail m botto�a wi�low flange n�sted. ' S�thing water stained be�ind weather resistive t�arrie�(WRB)- ' • � ; • S�thing�ts overd�iv�an�d in wrong direction Fasteners missed fiaming in ! wall assembly. i � � • Diff�eat b�ds of insulation in wall ass�nnbly. � I � • S1ab�ed from adj�t foundation. 4 I ! CUT#3: 11:10 A,M.Tbe i3�ird c�t was made below the roof to wall int,ersection of the � � east facing wall on the back elevation,le$of th�e lace vent, � � •w�� _x ��•��y' � �T� �� i�yt '�' 4 #M�4� � _ � , _ } , � � ; , 7 i 1 � S I � t i I � � � i � - i t ' i ' i i ! 5 j , � � � o � � .Q � � � •� � ... � � w � .� . A ��{ � � � '1M O ' ,\y,` .�,•., O�.y O � � y� V Q)�IIII�'��. 3 1 I.SS t t �v t�l �[ �� •�� .n r.ry � � +� �j C.1.' i ,._ � . �, r w Lp�y �.. r.�i df a P N '`�7''{�4��a �i �';� �i;;��t�{�a�.^jF �Y$':w. "� Q� rr � � � 5 y � O � �� .�U';� '� � �y �• � � , �� r :': ��f4 7� � �,; �i-i c� �+ � � �� O � C7 � ,;�Er4a'v,,t'�2.�''f"'� O C.�''.� f� p p� � � +� � o „� 1'4�'�� a� o a �i �i � � � ',�� 'y�1 � � •��. �,`,,'��1� ti�t'�;v i`� _�.�yerE.,��.. � �� b � � �� .� o ��y � � O •� Q� � � Vl � ��,�'� � J�"''� fl�q �f',�"�i r{4`l��E�4� f�4 t y � � � ,�;� }�. �+y r � �� .� �� .� }� �� '� v b ��' `� G � '��°�'�n,� �,'��,��s.. . °�� "`:�.�; � a� a o � � �u ' � � +�n � '� p � � � ..._, ,�.�x„ zti's.^�� '" .� '� � �, .°,� .� � '� � ? 4 � , '�,i•� � � � � o � � � � � �, u: 3 0 � � o ;�° 3 � o 'o � � � ��'� � � �i � � �a � � `� . � � o -� � � „ � a a ° � � � � �� o '� � � '� �" ° � � � � '� ' � � � � �b� � � •5 � � � a '� � � � � .� a � � � ,� o .� � � o y � .� ,d � � . � .� o � o '� � +'' � o a � � � � � . � a �' ' � �� g '� o � � �,� +� � � � � � '^ g, � •� � � • � � , � '� '� � � a � •° �° � .� � '� .� �t r° p � � '� �i � a � � o �«� O � �S � .CJ O � f�l � r� � �' C/� C/� t/� E�+ N Q � � Ey � Qi � �i � � � v� av� a � N ,SQ a� p � • • • • • • • • � F�+ � � � • • • • Grn � O • • � • • Attic Inspection• The follovving observations were made: , • The lateral bra+cing on the�s was undersiz.erl and did not meet code; � • The a#ic hatch was not gasketed consistent with Category I and II consUnaction; � • The so�t chutes were undersized at some locations; � • No soffit chutes were observed at the front lower roof assembly. ; ; i ; � Conctnsion: � � ; The fallowing conclusions are based on the inspections and testing performed to date: ; ; • The methods used to install the weather resistive bazrier at the base of the windows is consistent with other homes tested by FBS where collateral damage to ' ` sheathing and framing has been observed; �� • Stage I fa�ure was observed at the fiberboard sheathing at a114 test cuts.Tlus means the fiberboard sheathing has began to loose its ability to shed water and is in fact holding water at some locations at indicaxed by the change in color from � deep tan to light tan and or white,and moishire readings taken on the day of the ; � forensic testing; � • Sta,ge II�silure was observed at the fiberboazd sheathing at C�t# 1 behind the ` M window flange.This means the material,was friable when touched indicating a ` � loss of dimensional s�tability; � � • The fiberboard sheathing was not in.stalled to code or manufacturer's standards, � which voided the warranty provided by the manufacturer.Fasteners required to be ; ` installed parallel to framing members were installed perpendicular to the framing ; members.In addition,the fastenexs fracd�red the surface of the sheathing and in ; some cases missed contact with solid fi�.ming completely, • The lath was not installed to code or standards.Lath fasteners were over driven at ' contact with firaming members and at over 60'/0 of the areas tested were affi�ced � into only the sheathing; I • ICBO ES Standard AC 59(effective date Febn�ary 1, 1993),for flashing was not � followed; ! t • ICBO ES Standard AC 11,Acoeptance Criteria for Cementitious Exterior�Vall � Coatings(effective date January 1993)Part 6.0 subsections 1,3,5,7 were also not ! followed; ' • Guidelines published by the Minnesota Lat�and Plaster Bureau in January of � , 2000 were not followed. f �, � � The Andersen windows were not installed to man�specifications; ; • The foundation and or slab has shifted at the back elevation; ; • The improper installation of the air excl�anger contributed to the fungal growth on ; the interior of the home; ' • None of the issues listed in this report are self correcting.The damage to this � home is in the early stages and if effective repairs are made now additional more expensive repairs can be avoided in the future. i i i ; � � j ! � I 7 � � i _ � i , . • . � Recommendations: , Based on the findings we recommend the following steps be taken: 1. Perform an ASTM/AHMA certified window spray testing prior to any repair work. 2. Perform indoor IAQ testing with a Certified Industrial Hygienist(CIH) prior to any more testing. 3. Put the Builder on notice pursuant to all statutory requirements. ' 4. Complete soil testing and analysis of back elevation foundation,footing and slab. 5. Develop scope of repairs in conjuncdon with consulting engineer. Tom Irmiter,from Forensic Building Science,Inc.prepared this report for the Owner. ; This report has been reviewed and is authorized for release. � � k } i � I �� ' Digitally Signed December 14,2007 Thomas Irmiter ; President FBS Date Issued � i � i ; � i i j ( t � � � ; I � ; I i 1 � � � ; � I ! � i 1 � i i � � I � � R � � i } � i ; 8 ` � R � f