Amend 0002 - 071352 Built Up Bituminous Waterproofing.docx
DOCX document 32 KB Posted
- Solicitation number
- 36C77624R0086_1
About this file
This document appears to be a specification for modified bituminous sheet waterproofing to be used for a construction project at the Wilmington, Delaware VA Medical Center. The specification covers the requirements for the waterproofing system, including the modified bituminous sheet material, protection materials, accessories, and installation procedures. Key details include the required thickness of the bituminous sheet, the use of polystyrene insulation and hardboard as protection materials, the need for priming and sealing of seams, and requirements for field testing and inspection. The specification also includes warranty information and sustainability requirements for recycled content in the insulation. This appears to be a standard technical specification that would be included in the construction documents for the project.
The related federal contract opportunity is for a construction contract to renovate and expand the Mental Health program at the Wilmington VAMC. The solicitation number is 36C77624R0086_1, and the Department of Veterans Affairs Technology Acquisition Center Austin is the procuring agency. The contract will involve constructing an addition to the existing facility.
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| Wilmington VAMC, Wilmington DE | Addition for Mental Health | |
| VA Project # 460-325 | Construction Documents Submission | 12/12/22 |
01-01-21
SECTION 07 13 52
MODIFIED BITUMINOUS SHEET WATERPROOFING
SPEC WRITER NOTE: Delete text between // // not applicable to project. Edit remaining text to suit project.
GENERAL
SUMMARY
Section Includes:
Modified bituminous sheet material used for exterior below grade waterproofing and split slab waterproofing.
APPLICABLE PUBLICATIONS
Comply with references to extent specified in this section.
Federal Specifications (Fed. Spec.):
UUB790A Notice 2 v04-1992 Building Paper, Vegetable Fiber: (Kraft, Waterproofed, Water Repellent, and Fire Resistant).
ASTM International (ASTM):
| C57819 | Rigid, Cellular Polystyrene Thermal Insulation. |
| D41/D41M11(2016) | Asphalt Primer Used in Roofing, Dampproofing and Waterproofing. |
| D4586/D4586M07(2018) | Asphalt Roof Cement, AsbestosFree. |
| D6380/D6380M03(2018) | Asphalt Roll Roofing (Organic Felt). |
American Hardboard Association (AHA):
A135.4(r2020) Basic Hardboard.
PREINSTALLATION MEETINGS
Conduct preinstallation meeting at project site minimum 30 days before beginning Work of this section.
SPEC WRITER NOTE: Edit participant list to ensure entities influencing outcome attend.
Required Participants:
Contracting Officer's Representative.
//Architect/Engineer. // //Inspection and Testing Agency. // Contractor.
Installer.
//Manufacturer's field representative. // Other installers responsible for adjacent and intersecting work, including substrate and flashing installers.
SPEC WRITER NOTE: Edit meeting agenda to incorporate project specific topics.
Meeting Agenda: Distribute agenda to participants minimum 3 days before meeting.
Installation schedule.
Installation sequence.
Preparatory work.
Protection before, during, and after installation.
Installation.
Terminations.
Transitions and connections to other work.
Inspecting and testing.
Other items affecting successful completion.
Document and distribute meeting minutes to participants to record decisions affecting installation.
SUBMITTALS
Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.
Submittal Drawings: Show size, configuration, and installation details.
Manufacturer's Literature and Data:
Description of each product.
Installation instructions.
Warranty.
Samples:
Waterproofing and Flashing Sheet: 200 mm (8 inch) square, each type and color.
Insulation: 200 mm (8 inch) square.
Test reports: Certify products comply with specifications.
Certificates: Certify products comply with specifications.
Qualifications: Substantiate qualifications comply with specifications:
Installer with project experience list.
QUALITY ASSURANCE
Installer Qualifications:
Regularly installs specified products.
Installed specified products with satisfactory service on five similar installations for minimum five years.
Project Experience List: Provide contact names and addresses for completed projects.
DELIVERY
Deliver products in manufacturer's original sealed packaging.
Mark packaging, legibly. Indicate manufacturer's name or brand, type, color, production run number, and manufacture date.
Before installation, return or dispose of products within distorted, damaged, or opened packaging.
STORAGE AND HANDLING
Store products indoors in dry, weathertight conditioned facility.
Protect products from damage during handling and construction operations.
FIELD CONDITIONS
Environment:
Product Temperature: Minimum 4 degrees C (40 degrees F) for minimum 48 hours before installation.
Weather Limitations: Install waterproofing only during dry current and forecasted weather conditions.
WARRANTY
SPEC WRITER NOTE: Always retain construction warranty. FAR includes Contractor's one-year labor and material warranty.
Construction Warranty: FAR clause 52.24621, "Warranty of Construction."
SPEC WRITER NOTE:
1. Specify extended manufacturer's warranties for materials only.
2. Contracting Officer's Representative must approve specification of a manufacturer's warranty.
Manufacturer's Warranty: Warrant waterproofing system against material and manufacturing defects and agree to repair any leak caused by a defect in the waterproofing system materials or workmanship of the installer.
SPEC WRITER NOTE: Specify customarily available warranty period for specified products.
Warranty Period: 10 years.
PRODUCTS
SPEC WRITER NOTE: Material varies by manufacturer. Make material requirements agree with applicable requirements specified in the referenced Applicable Publications. Update and specify only that which applies to the project.
SYSTEM DESCRIPTION
Waterproofing System: Modified bituminous sheet material for exterior below grade and split slab waterproofing.
PRODUCTS - GENERAL
Provide each product from one manufacturer.
Sustainable Construction Requirements:
SPEC WRITER NOTE: Specify products containing greatest recycled content practicable to maximize material recovery. See HYPERLINK "file:///\\\\server12\\njserver\\Common%20Files\\_Projects\\16022%20NIBS%20VA%20Master%20Specifications%2016.07.01\\16022%20Spec%20in%20Progress\\www3.epa.gov\\epawaste\\conserve\\tools\\cpg\\products\\construction.htm"EPA Comprehensive Procurement Guidelines (CPG) for guidance about individual products and available recycled content. Section 01 81 13 sets overall project recycled content requirements.
Insulation Recycled Content: Rigid Foam: 9 percent total recycled content, minimum.
BITUMINOUS SHEET
Cold applied waterproofing membrane composed primarily of modified bituminous material prefabricated in sheet form designed for below grade exterior and split slab waterproofing. Sheet reinforced with fibers at manufacturer's option.
Thickness: Not less than //1.5 mm (60 mils)// //3.0mm (120 mils), plus or minus 0.13 mm (5 mils), and bonded to 0.1 mm (4 mil) thick plastic sheet.
Provide release sheet to prevent bonding of bituminous sheet to itself.
PROTECTION MATERIAL
Polystyrene Insulation: ASTM C578, Type I or VIII, 13 mm (1/2 inch) minimum thickness.
Hardboard: AHA A135.4, Service Type, 6 mm (1/4 inch) thick.
Waterproofed Building Paper: Fed. Spec. UUB790A Notice 2, Type I, Grade C.
Roll Roofing: ASTM D6380/D6380M, Class S (smooth), Type III with minimum net mass per unit area of roofing, 2495 g/sq. m (51 lbs./100 sq. ft.).
ACCESSORIES
Patching Compound: Factoryprepared, nonshrinking, fastsetting, cementitious adhesive compound containing no ferrous metal or oxide.
Primer: ASTM D41/D41M.
Roof Cement: ASTM D4586/D4586M.
EXECUTION
PREPARATION
Examine and verify substrate suitability for product installation.
Concrete surfaces cured minimum time recommended by waterproofing manufacturer.
Substrate to be dry as recommended by waterproofing manufacturer.
Protect existing construction and completed work from damage.
Correct substrate deficiencies.
Fill voids, joints, and cracks with patching compound.
Clean substrates. Remove contaminants capable of preventing full adhesion.
Priming:
Prime concrete and masonry surfaces.
Application method, amount of primer and condition or primer before installation of bituminous sheet as recommended by primer manufacturer.
Reprime when required according to manufacturer's instructions.
INSTALLATION - GENERAL
Install products according to manufacturer's instructions and approved submittal drawings.
When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative consideration.
WATERPROOFING INSTALLATION
Bituminous Sheet Installation:
Remove release sheet before application.
Lay bituminous sheet from low point to high point so laps shed water.
Treat expansion, construction and control joints and evident working cracks as expansion joints. Apply bituminous sheet in double thickness over joint by first applying a strip of bituminous sheet minimum 200 mm (8 inches) wide, centered over joint.
Lap seams minimum 50 mm (2 inches).
Lay succeeding sheet with laps, and roll or press into place.
Repair misaligned or inadequately lapped seams according to manufacturer’s instructions.
Seal seams and terminations according to sheet manufacturer’s instructions.
Corner Treatment:
At inside and outside corners, apply double cover using an initial strip minimum 280 mm (11 inches) wide, centered along axis of corner.
Cover each strip completely by the regular application of bituminous sheet.
Provide a fillet or cant on inside corners.
Form cants using patching compound.
Do not use wood, fiber, and insulating materials for cants.
Projection Treatment:
Apply a double layer of bituminous sheet around pipes and similar projections at least 150 mm (6 inches) wide.
At drains, apply a bead of roof cement over a double layer of bituminous sheet under clamping rings.
Patching:
Repair tears, punctures, air blisters, and inadequately lapped seams, according to manufacturer’s instructions before protection course is applied.
Permanent Protection:
Vertical Surfaces:
Install hardboard, polystyrene insulation, or roll roofing protection material.
Extend protection full height from footing to top of backfill.
If graded backfill is used, use roll roofing or hardboard.
Horizontal Surfaces:
Install roll roofing protection under concrete wearing courses.
Install roll roofing, hardboard, or polystyrene insulation under earth backfill.
Where no concrete wearing course occurs or when surfaces will bear heavy traffic and will not immediately be covered with a wearing course, use protection specified for vertical surfaces.
Temporary Protection:
When waterproofing materials are subjected to damage by sunlight and cannot be immediately protected as specified, protect waterproofing materials by waterproof building paper or suitable coating approved by manufacturer of waterproofing system used.
FIELD QUALITY CONTROL
SPEC WRITER NOTE: Section 01 45 29, TESTING LABORATORY SERVICES includes VA provided testing for large projects and contractor provided testing for small projects. Coordinate testing responsibility.
Field Tests: Performed by testing laboratory specified in Section 01 45 29, TESTING LABORATORY SERVICES.
Testing:
Before any protection or wearing course is applied, test all horizontal applications of waterproofing with a minimum of 25 mm (1 inch) head of water above highest point and leave for 24 hours.
Mark leaks and repair when waterproofing is dry.
Certify, to Contracting Officer's Representative, that water tests have been made and that areas tested were found watertight.
Inspection:
Do not cover waterproofed surfaces by other materials or backfill until work is approved by Contracting Officer's Representative.
CLEANING
Remove excess adhesive before adhesive sets.
Clean exposed waterproofing surfaces. Remove contaminants and stains.
PROTECTION
Protect waterproofing from construction operations.
Remove protective materials immediately before acceptance.
Repair damage.
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