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	SECTION 07310
	STEEP SLOPE ROOFING UNDERLAYMENT
	** NOTE TO SPECIFIER ** Interwrap Inc.; Steep Slope Roofing Underlayment. . This section is based on the products of Interwrap Inc., which is located at: 32923 Mission Way. Mission, BC, Canada V2V 6E4. Toll Free Tel: (800)-567-9727. Tel: (604)-820-5400. Fax: (604)-820-5420. Email: info@interwrap.com. Web: www.interwrap.com/titanium. . InterWrap is a fully integrated, global manufacturer of extrusion coated wovens and diverse multi layer laminated reinforced plastic substrates.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Peel and Stick Leak Barriers.
		B.	Synthetic Roofing Underlayment.
	1.2	RELATED SECTIONS
		A.	Section 06100 - Rough Carpentry: Roof framing and sheathing.
		B.	Section 07310 - Shingles, Roof Tiles and Roof Coverings: Roof coverings applied over underlayment.
		C.	Section 07620 - Flashing and Sheet Metal: Gutters and downspouts.
		D.	Section 08630 - Unit Skylights: Skylights.
	1.3	REFERENCES
	** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
		A.	ASTM D 226 - Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing.
		B.	ASTM D 751 - Standard Test Methods for Coated Fabrics; 1995.
		C.	ASTM D 903 - Standard Test Method for Peel or Stripping Strength of Adhesive Bonds.
		D.	ASTM D 1777 - Standard Test Method for Thickness of Textile Materials.
		E.	ASTM D 1970 - Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection.
		F.	ASTM D 2523 - Standard Practice for Testing Load-Strain Properties of Roofing Membranes; 2000.
		G.	ASTM D 2261 - Standard Test Method for Tearing Strength of Fabrics by the Tongue (Single Rip) Procedure (Constant-Rate-of-Extension Tensile Testing Machine).
		H.	ASTM D 4869 - Standard Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope Roofing.
		I.	ASTM D 5261 - Standard Test Method for Measuring Mass per Unit Area of Geotextiles.
		J.	ASTM E 96 - Standard Test Methods for Water Vapor Transmission of Materials; 2000.
		K.	ASTM E 108 - Standard Test Methods for Fire Tests of Roof Coverings.
		L.	ASTM G 154 - Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials.
		M.	National Roofing Contractors Association (NRCA): Steep Slope Roofing and Waterproofing Manual.
		N.	International Code Council (ICC): AC 48 - Acceptance Criteria For Roof Underlayment For Use In Severe Climate Areas.
		O.	UL 790 - Tests for Fire Resistance of Roof Covering Materials.
		P.	UL 997 - Wind Resistance of Prepared Roof Covering Materials.
	1.4	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	Product Data: Manufacturer's data sheets on each product to be used, including:
			1.	Preparation instructions and recommendations.
			2.	Storage and handling requirements and recommendations.
			3.	Installation methods.
		C.	Shop Drawings: Submit copies of manufacturer's standard details describing installation methods and flashing conditions applicable to the project.
	** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.
		D.	Selection Samples: For each finish product specified, two samples representing manufacturer's full range of available colors, patterns, and materials.
		E.	Verification Samples: For each finish product specified, two samples, minimum size 6 inches (150 mm) square, representing actual product, color, and patterns.
	1.5	QUALITY ASSURANCE
		A.	Manufacturer Qualifications: All primary products specified in this section will be provided by a single manufacturer with a minimum of ten (10) years experience.
		B.	Installer Qualifications: All products listed in this section are to be installed by a single installer with a minimum of five (5) years demonstrated experience in installing products of the same type and scope as specified.
	** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
		C.	Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.
			1.	Finish areas designated by Architect.
			2.	Do not proceed with remaining work until workmanship, color, and sheen are approved by Architect.
			3.	Refinish mock-up area as required to produce acceptable work.
	1.6	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's unopened packaging until ready for installation.
		B.	Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.
	1.7	PROJECT CONDITIONS
		A.	Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.
	1.8	WARRANTY
		A.	At project closeout, provide to the owner or owners representative an executed copy of the manufacturer's Limited Warranty against Manufacturing Defect.
	** NOTE TO SPECIFIER ** Select warranty duration based on product specified. UDL 30 and PSU 30 Carry a 30 year warranty, and UDL 50 Carries a 50 year. Delete paragraphs for type(s) not specified.
			1.	Titanium UDL-30 Warranty Duration: Thirty (30) Years.
			2.	Titanium PSU-30 Warranty Duration: Thirty (30) Years.
			3.	Titanium UDL-50 Warranty Duration: Fifty (50) Years.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Interwrap Inc., which is located at: 32923 Mission Way ; Mission, BC, Canada V2V 6E4; Toll Free Tel: 800-567-9727; Tel: 604-820-5400; Fax: 604-820-5420; Email: request info; Web: www.interwrap.com/titanium
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
		B.	Substitutions: Not permitted.
		C.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
	2.2	APPLICATION / SCOPE
	** NOTE TO SPECIFIER ** Delete Applications that are not present or are not applicable. Add others as required. Retain only Paragraphs that apply to jobsite conditions.
		A.	Provide a temporary moisture resistant barrier over installed steep slope roof decks to "Dry-In" the structure and allow trades to work beneath. Finished roofing material must be installed over products specified in this section within six (6) months.
		B.	Provide a secondary moisture barrier beneath finished steep slope roof surfaces to assist in preventing moisture infiltration.
	2.3	ROOF UNDERLAYMENT
	** NOTE TO SPECIFIER ** Select Synthetic Roofing Underlayment required. Delete types not required from the next three paragraphs.
		A.	Leak Barrier - Titanium PSU-30: Synthetic polymer surfaced self-adhered membrane roofing underlayment for steep sloped roofs greater than 4:12 pitch, subject to the effects of ice damming and wind driven rain.
			1.	Color: Gray.
			2.	Roll Size: 36 inches by 72 feet (914mm x 21946mm) – 2.16 Sq. (20 sm).
			3.	Weight: 0.24 Lbs (0.1 kg) per square foot.
			4.	Surface: Synthetic Polymer - Slip Resistant Nodular.
			5.	Release Liner: Silicone Treated, Poly Split release.
			6.	Nail Sealability - ASTM D 1970: Pass
			7.	Tensile Strength - ASTM D 1970: MD 100 lb/in (17.5 kN/m)/ CD 80 lb/in (14 kN/m).
			8.	Tear Resistance - ASTM D 1970: MD 140 lbf (622 N) / CD 100 lbf (445 N).
			9.	Low Temperature Flexibility - ICC AC 48; Pass.
			10.	Adhesion to Plywood - ASTM D 903: min. 4.0 lb/in. (700N/m).
			11.	Temperature Range: 40 F to 240 F (4.4 C - 115 C).
			12.	Nominal Thickness - ASTM D 5147: 45 mils.
		B.	Synthetic Roofing Underlayment - Titanium UDL 30: Polyolefin based, asphalt free, high strength reinforced roofing underlayment used on steep slopes beneath shingles, shakes, slate, tile, metal, and composite roofing to prevent leaks caused by wind driven rain and primary roofing breach.
			1.	ICC Approved alternate to ASTM D 226 Type I (#15) or Type II (#30) felt. (ES ER-6043).
			2.	Fire Rating (FG Shingles) - ASTM E 108: Class A.
			3.	Color: Gray.
			4.	Roll Size: 48 inches by 256 feet (1219mm x 78029mm) - 10 Sq. (92.9 sm).
			5.	Nail Sealability - ASTM D 1970: Pass.
			6.	Permeability - ASTM E 96: 0.06 perms.
			7.	Water Transmission ASTM D 4869: Pass.
			8.	Tear Strength - ASTM D 2261: MD 44 lbs (20 kg) / CD 40 lbs (18 kg).
			9.	Tensile Strength ASTM D 751-95: MD 143 lbs (65 kg) / CD 110 lbs (50 kg).
			10.	Burst Strength - ASTM D 751: 250 psi (1720 kPa).
			11.	Elongation - ASTM D 751: MD 18 percent / CD 18 percent.
			12.	Operating Temp Range: -70F (-55C) to 212F (100C).
			13.	Weight per Square - ASTM D 5261: 4.0 lbs (1.8 kg).
			14.	Nominal Thickness - ASTM D 1777: 25 mils (0.64 mm).
		C.	Synthetic Roofing Underlayment - Titanium UDL 50: Polyolefin based, asphalt free, high strength reinforced roofing underlayment used on steep slopes beneath shingles, shakes, slate, tile, metal, and composite roofing to prevent leaks caused by wind driven rain and primary roofing breach.
			1.	ICC Approved alternate to ASTM D 226 Type I (#15) or Type II (#30) felt. (ES ER-6043).
			2.	Fire Rating (FG Shingles) - ASTM E 108: Class A.
			3.	Color: Gray.
			4.	Roll Size: 48 inches by 256 feet (1219mm x 78029mm) - 10 Sq. (92.9 sm).
			5.	Nail Sealability - ASTM D 1970 - Pass.
			6.	Permeability - ASTM E 96: 0.05 perms.
			7.	Water Transmission ASTM D 4869: Pass.
			8.	Tear Strength - ASTM D 2261: MD 55 lbs (25 kg) / CD 55 lbs (25 kg).
			9.	Tensile Strength ASTM D 751-95: MD 178 lbs (81 kg) / CD 176 lbs (80 kg).
			10.	Burst Strength - ASTM D 751-95: 300 psi (2065 kPa).
			11.	Elongation - ASTM D 751: MD 20 percent / CD 20 percent.
			12.	Operating Temp Range: -70F (-55C) to 212F (100C).
			13.	Weight per Square - ASTM D 5261: 4.7 lbs (2.1 kg).
			14.	Nominal Thickness - ASTM D 1777:30 mils (0.75 mm).
	2.4	RELATED MATERIALS
		A.	Sealant: High quality, asbestos free plastic roofing cement meeting or exceeding the requirements of ASTM D 4586 Type I.
		B.	Fasteners: Annular ring or deformed shank roofing fasteners with minimum 1 inch (25mm) diameter metal or plastic caps.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Do not begin installation until substrates have been properly prepared.
		B.	If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
	3.2	PREPARATION
		A.	Clean surfaces thoroughly prior to installation.
		B.	Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
	3.3	INSTALLATION
		A.	Follow manufacturer's current installation guidelines, procedures found in the current version of the National Roofing Contractors Association's (NRCA) "Steep Slope Roofing and Waterproofing Manual", and requirements of all code bodies having jurisdiction. In the event of a conflict in installation requirements, the more stringent method of installation will prevail.
	** NOTE TO SPECIFIER ** Delete flashing conditions to present on this project from the next eight conditions. While not required by most building codes, installation of leak barrier at Hips, Ridges and Rake Edges is strongly recommended by most roofing manufacturers and the NRCA.
		B.	Roof Deck: Starting at the lowest point of the roof section, apply one layer of underlayment horizontally over all sections of roof deck not protected by eave or valley membrane and nail in place. Lap horizontal edges 2 inches (51 mm). Overlap ends at least 4 inches (102 mm); stagger end laps at least 36 inches (915 mm) apart.
		C.	Eaves: Place eave edge metal flashing tight with fascia boards; lap joints 2 inches (50 mm) and seal; nail at top of flange.
		D.	Valleys: Install a full width of leak barrier centered on valley; lap ends 6 inches (150 mm) and seal. Where open valley construction is specified, install metal flashing over leak barrier before roof deck underlayment is installed. Lap underlayment over valley protection at least 6 inches (150 mm).
		E.	Vent Pipes and Field Penetrations: Apply a 24 inch (610 mm) square target sheet of leak barrier around the penetration. Lap over underlayment beneath and at the sides of the penetration and beneath underlayment above the penetration. Apply sealant to the seam above the penetration.
		F.	Sidewalls, Headwalls and Chimneys: Apply leak barrier extending at least 8 inches (203 mm) up the wall and 12 inches (305 mm) on to the roof surface. Lap over roof deck protection.
		G.	Hips and Ridges: Apply leak barrier over the length of the hips and ridges. Where ridge ventilation is specified, remove leak barrier from areas where ventilation slots are required prior to installing ridge vent.
		H.	Rake Edges: Apply Leak barrier and underlayment prior to installation of any rake edge flashing. Apply sealant to the edge prior to installation of metal flashing and nail metal edge flashing every 6 inches (152mm).
		I.	Skylights: Apply leak barrier up the sides of the frame and 12 inches (305 mm) on to the roof surface on all sides, Lap over underlayment beneath and at the sides of the skylight and beneath underlayment above the penetration. Apply sealant to the seam above the skylight.
	3.4	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Touch-up, repair or replace damaged products before Substantial Completion.
	END OF SECTION