Correspondence N/13/2000 14:35 5032417919 OS- CHASE,INC. PAGE 02/02
07•Chase,
ilk Illabi■ nnn;e`r AND cogsrporrlQN &TANAGEMEN 06'j pRCN CZ t
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Rick Bolen. Inspector II
City of Tigard
13125 SW Hall Blvd.
Tigard, OR 97223
March 13, 2000
RE: Riverlake Village Re -roof project
Dear Rick:
The meeting last Friday was quite , helpful in uuclei'steu► ding your written inspection issues regarding the
roofing project at Riverlake Village. During that meeii g you requested a letter from OS-Chase To stating
T_ that end, the L1
the visual observation of the existing roof sheathing by OS- Chase. , the statement of
observation is outlined below: •
OS-Chase �r,.i. ;,.,,.F..va r�,r observed the exposed letter is to inform you that on several occasions OS -t„ hase A chitect L
damage. - _ _ R`L.. roof sheathing M7►llYP./,�
roof sheathing and found no evidence of dry rot or structural damage. .� he , oo lr shea hin c 1P. - --
sound and ready for cover.
Interstate Roofing will a ddress the other issues you had written on your inspection report.
-_oeireiy,
— '7ouglas L. vuderkirk, t7,ltr�
OS -Chase Architecture, LLC
115 S.W. Ash Street, Suite 200
Portland, Oregon 97204 -5549
7 eI 503.241 -791
f a x 5 0 3 •2 4 1. 7 9 1 9
www.os- chase.ca•rn
(� CI7jPi
U/13/2000 14:35 5032417919 0S-CHASE,INC. PAGE 01/02
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If aucloAitives aKe uoi as note, pieose notify its at Ottk:C. Thank You.
•
10 ROOF COVERING MATERIALS (TEVT) ROOF COVERING MATERIALS (TEVT)
,
PREPARED ROOF COVERING MATERIALS (TFWZ) — Continued PREPARED ROOF COVERING MATERIALS (TFWZ)— Continued
GLOBE4UILDING MATERIALS INC R2472 (N) MASONITE CORP R9553 (N)
'30 INDIANAPOLIS BLVD, WHITING IN 46394 SUITE 2880 1 S WACKER DR, CHICAGO IL 60606
alt organic felt sheet roofing and shingles, for installation as Class C Fire retardant treated hard board shingles, for installation as Class C
fired roof coverings. Asphalt organic felt shingles, for installation as prepared roof coverings. The shingles are to be provided with an underlayment
mind resistant roof coverings. of at least one layer of Type 30 (30 lb) or two layers of Type 15 (15 lb) asphalt
Asphalt glass fiber mat shingles, for installation as Class A prepared roof organic felt, and a .016 in. thick metal tab is to be used under each butt joint
:overings. Suitable for installation on minimum 3/8 in. thick plywood decks. during shingle application.
Asphalt glass fiber mat shingles, for installation as wind- resistant roof Fire retardant treated hard board shingles, for installation as Class B
:overings. prepared roof coverings. The shingles are to be provided with an underlayment
of two layers of Type G -3 cap sheet, and a .016 in. thick metal tab is to be used
G5 ROOFING PRODUCTS CO INC R11655 (N) under each butt joint during shingle application.
SUITE 900 5525 MACARTHUR BLVD, IRVING TX
75038 NELCO ENGINEERING R18103 (N)
Asphalt organic felt sheet roofing and shingles, for installation as Class C 1610 MUSTANG DR, MARYVILLE TN 37801
prepared roof coverings. Asphalt organic felt shingles, for installation as Formed plastic roof tiles, for installation as Class A prepared roof coverings
Class C prepared roof covering. Suitable for installation on minimum 3/8 in. suitable for use on 15/32 in. plywood deck when laid over 1/2 in. gypsum
thick plywood decks. Asphalt organic felt shingles, for installation as wind board or 1/4 in. Georgia- Pacific "Dens- Deck".
resistant roof coverings.
Asphalt glass fiber mat shingles, for installation as Class A prepared roof Formed plastic roof panels, for installation as Class B roof covering in
coverings. Suitable for installation on minimum 3/8 in. thick plywood decks. accordance with manufacturers installation instructions. Suitable for use on
Asphalt glass fiber mat shingles, for installation as wind resistant roof minimum 1/2 in. plywood deck covered with one ply of Type 30 felt followed
coverings. by one layer of Type G3 mineral surfaced cap sheet.
Asphalt mineral wool -felt shingles, for installation as Class C prepared roof Formed plastic roof panels, for installation as Class C roof covering in
coverings. Asphalt mineral wool -felt shingles as wind resistant roof coverings. accordance 't,�manufacturers installation instructions. Suitable for use on
Modified asphalt glass fiber mat shingles, for installation as Class A minimu tin. plywood deck covered with two `layers of Type 15 or one layer
prepared roof coverings. Suitable for installation minimum 3/8 in. thick of •e--30 asphalt organic felt. -�,
plywood decks. Modified asphalt glass fiber mat shingles, for installation as
wind resistant roof coverings. \�
Asphalt glass mat shingles, for installation as Class A prepared roof covering ./OWENS FIBERGLAS CORP R2453 (N)
when used with minimum Type 30 underlayment over existing wood shingle T -15 FIBERGLAS TOWER, TOLEDO OH 43659
roof. Asphalt glass fiber mat sheet roofing, for installation as Class C pared
Asphalt glass mat shingles, Classified in accordance with ASTM D34. roof coverings.
including tear resistance. Asphalt glass fiber mat shingles, for installation as Class A prepared roof
oof
coverings. Suitable for installation on minimum 3/8 in. thick plywood decks
HERBERT MALARKEY ROOFING CO R4299 with underlayment such as asphalt saturated felt or shingle underlayment
131 N COLUMBIA BLVD KENTON STATION PO BOX classified by UL as a prepared roofing accessory and on minimum 1/2" tl{ick
3 17217 131 PORTLAND OR 97217 plywood decks without underlayment. Asphalt glass fiber mat shingles/ for
installation as Class C prepared roof coverings on minimum 3/8" thick plywood
halt glass fiber mat shingles, for installation as Class A prepared ro decks without underlayment. Asphalt glass fiber mat shingles for install. on as
rings. Asphalt glass fiber mat shingles, for installation as wind resistan, wind resistant roof coverings.
ruof coverings. French method shingle, Class A, for use in reroofing.
Modified asphalt glass fiber mat shingles may bear the statement "Also Asphalt glass -mat shingles, classified in accordance with : ' M D34 62,
evaluated at wind velocities up to 110 mph ". 1 luding tear resistance.
Asphalt glass fiber mat sheet roofing, for installation as Class C prepared
roof coverings.
PABCO RO r ' , PRODUCTS, DIV OF P. COAST R11271 (N)
HOOVER TREATED WOOD PRODUCTS INC R10660 (N) BUILDING PR r r r "'
PO BOX 746, THOMSON GA 30824 PO BOX 160488, SACRAMENTO CA 95816
Fire retardant treated red cedar wood shingles, for installation as Class C Asphalt organic felt sheet roofing and shingles, for installation as Class C
prepared roof covering when provided with an underlayment of at least one prepared roof coverings. Asphalt glass mat shingles, for installation as Class
layer of Classified Type 15 asphalt saturated organic felt. A prepared roof coverings. Suitable for installation on minimum 3/8 in. thick
plywood decks. Asphalt glass mat shingles, for installation as wind resistant
IKO INDUSTRIES LTD roof coverings. Wind resistance has also been evaluated at wind velocities up
R6765 (N) to 110 mph.
71 ORENDA RD, BRAMPTON ON CANADA
Asphalt organic felt shingles, for installation as Class C roof coverings.
Asphalt organic felt shingles, for installation as wind resistant roof coverings. RE - NEW WOOD INC R18263 (N)
Asphalt glass fiber mat shingles, for installation as Class A prepared roof 104 NW 8TH ST, WAGONER OK 74454
coverings. Formed roofing tile for installation a Class C prepared roof covering when
Asphalt glass fiber mat shingles, for installation as wind resistant roof laid over one ply of shingle underlayment.
coverings.
IKO MFG INC R9806 (N) EINKE SHAKES INC R8491 (N)
HAY RD EDGEMOOR, WILMINGTON DE 19809 ) 210 S 4TH ST, HEBRON NE 68370
Asphalt organic felt shingles, for installation as Class C prepared roof Formed aluminum shakes or installation as Class A prepared roof covering
coverings. when applied with an interlayment of UL Classified Type 15 asphalt organic felt
Asphalt organic felt shingles, for installation as wind resistant roof coverings. of UL Classified shingle underlayment (resulting in the deck being covered with
Asphalt glass fiber mat shingles, for installation as Class A prepared roof 2 layers of felt) when applied over minimum 5/8 in. UL Classified Type X
coverings. gypsum or Georgia- Pacific Corp. "Dens Deck Overlayment" with all joints
Asphalt glass fiber mat shingles, for installation as wind resistant roof staggered minimum of 6 in. from the plywood joints applied directly to
coverings. minimum 15/32 plywood decks.
INTERNATIONAL EXTERIORS LTD R11951 (N) SEKISUI AMERICA CORP R13277 (5)
'689 CLIVEDEN AVE, DELTA BC CANADA V3M 6V5 SUITE 120 SKYPARK 3 23430 HAWTHORNE BLVD,
rmed aluminum shingles for installation as Class B prepared roof coverings TORRANCE CA 90505 'r
Oren applied with an underlayment of Classified Type G3 Owens- Corning Cement tiles, designated "Brook Roofing Tiles," for installation as a Class
Fiberglas "Perma -Cap." May also be applied over 1/2 in. min plywood roof A prepared roof covering when mechanically fastened over minimum 15/32 in.
decks. These coverings have been investigated for fire resistance only. Local Thick plywood decks, as an option, one or more layers of Type 15 asphalt
authorities having jurisdiction should be consulted before installation. saturated organic felt underlayment may be used.
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