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CITY OF TIGARD ,
Approved .1 i . . , />
Conditionally Approved I J= V
For only the wojk as described In:i
PERMIT NO. ' tau- Coo 7f '
See Letter to: Follow . ( J:
Attach
Job Address: 1 . 'r . c�
By:. ./ 1 , Date: 1240 1 ,o\
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r ii � RUBEROID® Specifications I- 1 -1 -TG, I- 1 -1 -TS and I -1 -1 -TSC .'
CORPORATION
- , . melted off the selvage edge of granule surfaced products. The flame should be
® V '
moved from side to side and up the side lap area of the previously applied
• •- , Steep a sheet Unroll the membrane while pressing onto the underlying surface. Be ,
• GAFTEMP sure that the surface of the roll is heated sufficiently so that it develops a sheen
Insuleuen ; 41 ∎∎ and the texture- backed products lose their sharp definition. The generation of .a'
Jr A � •. ' = heavy smoke is an indication that the surface is being overheated. When this
half of the roll is secure, reroll the other half of the roll and torch in place in the
•r. -,,' -' = - same manner. A minimum of 'b inch flow out of modified bitumen compound s
• �� is required at all seams. Field seams should not be troweled. At the 6 inch mini :+ •
F ' r� ' , .. r Min ' ` mum end laps, sufficient heat must be applied to the granule surfaced • r r S id e Lep . RUBEROID Membranes to cause the granules to sink into the top surface coat -
4,-J. ,,!..-,e R
` ~¢ ,0 ... '''/1.' - - - - ' '' ing to assure a receptive surface for bond to the overlapping next roll of
MIA °. .. i =
• p i. : s'•. ' RUBEROID Membrane. .
;_' Y`;� 5. For smooth surfaced installations where a coating is desired, between 1 and
,,-f° ;, � 4 weeks after the installation of the RUBEROID sheets, apply premium
q ;^ WEATHER COAT® Emulsion at a rate of approximately 3 gallons per 100 square
Y• ¢ aE C a feet; Premium Fibered Aluminum Roof Coating at a rate of approximately 1 ' /r2
� gallons per 100 square feet; or other GAF Materials Corporation approved coat-
- `' ?�GAFGI-AS'•" • ' - RUSEROIDTORCH ing; see "UL Systems' Ratings Chart," page 6. The RUBEROID Membrane
• _ 9aseSheet Torch Applied surface must be clean, thy, and free of all loose dirt and dust at
the time of coating.
Substrate —Decks insulated with GAFTEMP® Isotherm, Composite or RUBEROID UL Classifications
PERMALITE ®. See "Application Recommendation #3." UL Class Surfacing Substrate . Slope Insulation Specification
Slope —Up to 3 inches per foot. . . -
A GPFARC C • Jz C _ t-1 -1 -TSC
Materials - . A GPFARC NC • '/: - • A I -11 TSC
•
GAF Materials CorporationAsphalt/Conerete Primer (when applicable) A GWCE . '1 +' • A . I 1 -1 -TSC •
GAF Materials Corporation Steep AsphaltASTM D -312 Type III ,
• GAFGLAS' Base Sheet • • . . V . B GPFARC C - /s 8' 1 -1 -1 -TSC
. GAFTEMP Insulation. , . • •
GAFTITE Insulation-Fastening System (when applicable) For more extensive UL classifications, see page 6. .
RUBEROID TORCH (Smooth or Granule Surfaced) UL Chart Ke y
Surfacing (if desired) V 4
1. Surfacing
. Approximate Weight Per Square Total 140 -200 Ibs' GPFARC = GAF Premium Fibered Aluminum Roof Coating
GWCE = GAF WeatherCoat® Emulsion
' Plus weight of insulation and fasteners. 2. Substrate
C = Combustible and Noncombustible
- Combustible = Wood planks, boards, etc., plywood (min. "/72 inch thickness),
• oriented strand board (min. % inch thickness).
NC = Noncombustible only
Noncombustible = Steel, poured or precast structural concrete, lightweight
General insulating concrete, gypsum, structural wood fiberboard, etc.
Design and Application Considerations detailed in this Manual shall apply in 3. Slope
addition to the following recommendations and specifications. Maximum slope allowed, in inches per foot.
Application Recommendations 4. Insulation
1. On structural concrete decks, insulation may be secured with Steep Roofing A = GAFTEMP Regular and High Density Wood Fiberboard and Perlite,
Asphalt or the GAFTITE® Fastening System. If Steep Roofing Asphalt is to be any thickness.
used, the concrete deck must be primed with Asphalt/ Concrete Primer at a rate B = GAFTEMP Isotherm, Regular and High Density Wood Fiberboard and
of 1 -2 gallons per 100 square feet and allowed to dry. Perlite, any thickness. I
2. For steel decks, insulation must be mechanically attached throughout the C = GAFTEMP Isotherm, PERMALITE, and Composite 1'/2 minimum
entire roof area. See 'Suggested Insulation Fastener Patterns' page 8 or the thickness.
current GAFTEMP® Catalog and the Factory Mutual Loss Prevention Data
Sheet 1 -28.
3. Install one ply of GAFGLAS® #75 Base Sheet over the GAFTEMP®
PERMALITE® or Composite Insulation in a solid mopping of Steep Roofing I
Asphalt ASTM Type III. The side laps must be a minimum of 2 inches. The
end laps must be a minimum of 6 inches. Over GAFTEMP Isotherm, an over-
lay of GAFTEMP PERMALITE or Composite (Perlite side up) is reauired. .
Over steel, concrete and wood decks, a GAFGLAS #75 Base Sheet can be
simultaneously attached with GAFTITE® screws and 3' metal plates with any
GAFTEMP insulation (see Page 20).
4. Starting at the low point of the roof surface, set the RUBEROID® roll in the
course to be followed and unroll half the roll where practical. Position the .
membrane to provide a minimum of 3 inch side laps and a 6 inch end lap. Guarantees Available . . .
Using the propane torch, apply the flame to the surface of the coiled portion of Specification : RUBEROID Liberty • .- ' RUBEROID LMG 0 ,-
the roll until the surface reaches the proper application temperature (approxi- I- 1 -1 -TS 10,5yr. 10yr. •
•
mately 350 F). The side lap and the end lap areas of the previously applied I -1 -1 -TSC - 12, 10, 5 yr. . `- 12,10 yr.
sheet must also be heated to provide proper adhesion. The plastic film must be I- 1 -1 -TG V 12,10,•5 yr: • " . ' 12,10 yr. '
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