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	SECTION 07417
	ROOF UNDERLAYMENT
	Copyright 2009 - 2014 ARCAT, Inc. - All rights reserved
	** NOTE TO SPECIFIER ** SOPREMA, Inc.; waterproofing and waterproofing systems. . This section is based on the products of SOPREMA, Inc., which is located at: 310 Quadral Dr. Wadsworth, OH 44281 Toll Free Tel: 800-356-3521 Tel: 330-334-0066 Fax: 330-334-4289 Email: request info Web: www.soprema.us [ Click Here ] for additional information. Since 1908, SOPREMA has been a world-wide leader in the waterproofing membrane industry. Here in the Unites States, SOPREMA has transformed into "The Building Envelope Company" with waterproofing products for every area of the building envelope. SOPREMA offers a wide range of products including SBS modified bitumen waterproofing membranes, liquid applied systems, waterproofing products for the entire building envelope, a complete line of self-adhered products, green solutions such as garden roof, building integrated photovoltaic systems and much more. See our SpecWizard: Click Here
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Sheet-applied self-adhering underlayment membrane for roofing.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 06100 - Rough Carpentry.
		B.	Section 07310 - Shingles.
		C.	Section 07320 - Roof Tiles.
		D.	Section 07410 - Metal Roof Panels.
		E.	Section 07920 - Sealants.
	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.	American Society of Testing and Materials (ASTM):
			1.	ASTM D 903 Standard Test Method for Peel Resistance.
			2.	ASTM D 1970 Standard Test Method for Flexibility at Cold Temperature.
			3.	ASTM E 96(B) Standard Test Method for Water Vapor Permeance.
			4.	ASTM E 283 Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen.
		B.	International Organization for Standardization (ISO) 9001:2000 Quality Standard.
	1.4	DEFINITIONS
		A.	Waterproofing Terminology: Refer to the following publications for terms related to waterproofing work not otherwise defined in this section.
			1.	ASTM D 1079: Definitions of Terms Relating to Waterproofing, Roofing, and Bituminous Materials.
			2.	National Roofing Contractor's Association (NRCA): Roofing and Waterproofing Manual.
			3.	Roof Consultants Institute Glossary of Terms.
	1.5	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	Submit three copies of the most current technical data sheets. These documents shall describe the physical properties of the specified materials and explanations about product installation, including installation techniques, restrictions, limitations and manufacturer recommendations.
		C.	Certification that all products are in compliance with specified ASTM criteria.
	1.6	QUALITY ASSURANCE
		A.	Installer Qualifications:
			1.	The installer shall have experience with specified product and manufacturer recommended application and detailing.
		B.	Manufacturer Qualifications:
			1.	Shall have a minimum of 10-year experience manufacturing waterproofing membrane systems.
	** 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 is approved by Architect.
			3.	Correct mock-up area as required to produce acceptable work.
	1.7	PRE-INSTALLATION CONFERENCE
		A.	Convene no less than five days prior to commencing Work at a time and location to be determined.
			1.	All parties responsible for Work of this section shall be required to attend including the Architect, Owner, Contractor and any other trades affected by the roofing and underlayment Work.
			2.	Review installation procedures and coordination required with related work.
			3.	Inspect and make notes of job conditions prior to installation:
				a.	Minutes shall be taken at the conference and provided to all parties present.
				b.	All outstanding issues shall be noted in writing designating the responsible party for follow-up action and the timetable for completion.
				c.	Application of waterproofing system shall not take place until all outstanding issues are resolved to the satisfaction of the Building Owner.
	1.8	DELIVERY, STORAGE, AND HANDLING
		A.	Deliver materials clearly labeled with manufacturer's name, brand name, and all identifying numbers.
		B.	Store all materials upright, on pallets, in protected and well-ventilated areas. Only materials to be used the same day shall be removed from this location. Special care may be required at temperatures below 40 degree F (4 degree C). Keep all materials away from open flame or welding sparks.
		C.	Pails of materials shall be carefully stored and adequately protected in accordance with the manufacturer's recommendations.
	1.9	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.
	1.10	WARRANTY
		A.	Sheet Membrane Underlayment: Upon completion of work, the Contractor shall supply the Owner with a single-source warranty issued by the manufacturer of the underlayment.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: SOPREMA, Inc., which is located at: 310 Quadral Dr. ; Wadsworth, OH 44281; Toll Free Tel: 800-356-3521; Tel: 330-334-0066; Fax: 330-334-4289; Email: request info; Web: www.soprema.us
	** 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	UNDERLAYMENT
	** NOTE TO SPECIFIER ** Lastobond is designed to be used under roof systems and is available in split-back release material. Lastobond can be exposed for periods up to ninety days before the roof assembly is installed. Foot and equipment traffic, especially on steeper sloped roof areas can affect the finished surfacing and water tightness of the sheets. Traffic should be limited until specified roof assembly is installed. Designed for use in hot climates where in-service temperatures as high as 240 degree F (116 degree C) are expected.
		A.	Sheet Membrane Underlayment: Lastobond Shield HT is a 40 mil (1 mm) self-adhesive waterproofing membrane. Lastobond MU is a 60 mil (1.5 mm) self-adhesive waterproofing membrane. Both are composed of SBS modified bitumen and a tough UV resistant anti-slip polyethylene woven top facer. The release film backing is UV resistant and protects the product from degradation when stored outside without the cardboard packaging.
			1.	Standards:
				a.	Underwriters Laboratories Inc. File #R21824
				b.	FM Approvals, ICC/ES, Miami-Dade County or Florida Building Code Product Approval for Roof Assembly combinations.
				c.	Soprema is ISO-9001: 2008 Certified.
	** NOTE TO SPECIFIER ** For use on multiple roofing types including metal. Delete if not required.
		B.	Product: Lastobond Shield HT by SOPREMA.
			1.	Physical Properties:
				a.	Load strain properties @ 77 degree F (25 degree C):
					1)	Maximum load (lbs/inch) MD/XD: 64/88.
					2)	Elongation @ maximum load (%) MD/XD: 52/24.
				b.	Low Temperature Flexibility (ASTM 1970): -22 degree F (-30 degree C).
				c.	Peel Resistance on plywood (ASTM D 903): 11.4 lb/ft (17 kg/m).
				d.	Maximum Service Temperature: 240 degree F (116 degree C).
				e.	Water Vapor Permeance perm (ng/Pa*s*m2) (ASTM E 96): 0.017 (0.92).
				f.	Air Permeability, (L/sec*m2) (ASTM E 283 - 75 Pa): <0.007.
	** NOTE TO SPECIFIER ** Lastobond ECO is designed to be used under shingles and composition shingle roof systems and is available in split-back release material. Lastobond ECO can be exposed for periods up to ninety days before the roof assembly is installed. Foot and equipment traffic, especially on steeper sloped roof areas can affect the finished surfacing and water tightness of the sheets. Traffic should be limited until specified roof assembly is installed. Delete if not required.
		C.	Product: Lastobond ECO by SOPREMA. (Non-reinforced).
			1.	Self-adhered fiberglass reinforced underlayment composed of special elastomeric modified bitumen blends of SBS with a sanded top.
			2.	Physical Properties:
				a.	Thickness: 47 mil (1.2 mm).
				b.	Load strain properties @ 77 degree F (25 degree C):
					1)	Maximum load (lbs/inch) MD/XD: 46/35.
					2)	Elongation @ maximum load (%) MD/XD: 4/4.
				c.	Low Temperature Flexibility (ASTM 1970): -13 degree F (-25 degree C).
				d.	Peel Resistance on plywood (ASTM D 903): 11.4 lb/ft (27 kg/m).
	2.3	PRIMER
	** NOTE TO SPECIFIER ** Delete if not required.
		A.	Surface Primer: ELASTOCOL 600c by SOPREMA. A solvent based primer used specifically for self-adhered membranes. Primer is composed of a blend of natural resins and solvent/synthetic rubber; may be spray or roller applied.
	** NOTE TO SPECIFIER ** Delete if not required.
		B.	Surface Primer: ELASTOCOL STICK WB by SOPREMA. A polymer, emulsion based primer used specifically for self-adhered membranes. Primer may be spray or roller applied. For use when temperatures are above 41 degree F (5 degree C). Keep from freezing.
	2.4	ACCESSORIES
		A.	Sealant / Mastic: Sopramastic by SOPREMA.
	PART 3	EXECUTION
	3.1	SURFACE INSPECTION
		A.	Do not begin installation until substrates have been properly prepared.
		B.	The installer shall examine conditions of substrates and other conditions under which this work is to be performed and notify Contractor, in writing, of circumstances detrimental to the proper completion of the work. Do not proceed with work until unsatisfactory conditions are completed.
		C.	Determinations of bond strength and moisture content are the responsibility of the contractor and shall be performed periodically by the contractor throughout the course of work.
		D.	Do not install materials in conditions of inclement weather.
	3.2	SURFACE PREPARATION
		A.	Surfaces shall be structurally sound and free of voids, spalled areas, looser aggregate and sharp protrusions. Remove contaminates such as grease, oil and wax from exposed surfaces. Remove dust, dirt, loose stone and debris. Use repair materials and methods which are acceptable to manufacturer of sheet membrane waterproofing.
		B.	Wood Substrates: Prime as necessary for wood. Apply waterproofing membrane over securely fastened, sound surface. All joints and fasteners shall be flush to create a smooth surface.
		C.	Treat joints and install flashing details as recommended by underlayment membrane manufacturer.
	3.3	MEMBRANE INSTALLATION
		A.	Comply with membrane manufacturer's literature and approved details for installation, including but not limited to the following:
			1.	Apply primer by spray or roller at a rate recommended by the membrane manufacturer. Recoat areas not waterproofed if contaminated by dust. Allow primer to dry per membrane manufacturer's recommendations.
	** NOTE TO SPECIFIER ** Acceptable substrates are plywood, OSB, wood plank or composition, concrete, masonry or faced gypsum substrates.
			2.	The membrane shall be bonded to a properly prepared, dry (not damp), clean substrate which is free of dirt; dust; debris; oils; unadhered coatings; any other contaminates that may result in a surface that is not sound or is un-even and affects the adhesion of the membrane to the substrate.
			3.	Remove the release material from the self adhesive underside and apply onto the approved substrate using applied pressure. Starting at the low point, position a full roll or cut the membrane into ten to fifteen feet (3 to 5 m) lengths and re-roll loosely. Peel back one to two feet (300 to 600 mm) of release material, align the membrane, and continue to peel the release film from the membrane. Press the membrane in place with heavy hand pressure. Apply pressure to the membrane roll side and end laps to insure water tightness and bonding to the substrate. Membrane installation shall not prevent ventilation of existing structure.
			4.	Follow good roofing practice by orientating underlayment so side laps shed water. Apply the membrane in valleys before the membrane is applied to the eaves. For valley and ridge application, peel the release material, center the sheet over the valley or ridge, drape, and press it in place. Work the center of the valley or ridge outward in each direction. Following placement along the eaves, continue application of the membrane up the roof. If nailing of the membrane is necessary on steep slopes during hot weather, back nail and cover the nails by overlapping with the next sheet. Extend sheet to the height as recommended by the local building code or to the highest locally expected level in order to maintain water tightness from wind driven rain, headwater back-up, ice dams and snow load.
	END OF SECTION