Last edited by Vumi
Saturday, May 16, 2020 | History

2 edition of Studies on movement of built-up roofing membranes found in the catalog.

Studies on movement of built-up roofing membranes

Donald E. Brotherson

Studies on movement of built-up roofing membranes

by Donald E. Brotherson

  • 102 Want to read
  • 11 Currently reading

Published in [Urbana?] .
Written in

    Subjects:
  • Roofing.

  • Edition Notes

    Statement[by] Donald E. Brotherson.
    SeriesUniversity of Illinois Small Homes Council-Building Research Council. Research report,, 65-2
    ContributionsNational Roofing Contractors" Association.
    Classifications
    LC ClassificationsTH7 .I4 no. 65-2
    The Physical Object
    Paginationiv, 25 p.
    Number of Pages25
    ID Numbers
    Open LibraryOL6009886M
    LC Control Number66063706
    OCLC/WorldCa4614358

    Forensic Engineering Performance of the Built Environment. Edited by Alicia E. Díaz de León, P.E., Buy E-book Checkout Hail Evaluation of Bituminous Roofing Membranes: Understanding Interply Mopping Voids. Justin Donaldson, Marco DeLeon and Stewart Verhulst. The application of Built-Up Roofing systems is detailed work, but the professional who pays particular attention to those details such as curbs, walls, flashings or other projections that interrupt the membrane, achieves a quality, efficient, long-lasting product for the building owner.

    Breather membranes shall be correctly installed to protect the sheathing and frame from moisture, and allow water vapour from within the frame to pass into the cavity. Breather membranes should be: vapour resistant to less than MNs/g ( Sd) when tested in accordance with BS EN ISO using the set of conditions C and using five test. Effects of Thermal Shrinkage on Built-up Roofing William C. Cullen The effects of thermal movement of bituminous built-up roof membranes are related to some common failures of built-up roofing observed in field exposures. A procedure for determining the amount of thermal movement of built-up membranes is described. Data.

    A virtual swatch book, Case Studies ; Building Science flashings and repairs on SBS modified membranes and is also excellent for repairs on conventional built up roofing membranes where movement is expected to occur. Product Overview. Low Slope Product & System Selection Guide. gfa9q**j9cmejdc9*cneap chmcd95%kqege9-ceegi-!!.dmcd/jdacej/gimjic ijbr% *&'&l'


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Studies on movement of built-up roofing membranes by Donald E. Brotherson Download PDF EPUB FB2

Studies on Movement of Built Up Roofing Membranes: Author(s): Brotherson, Donald E. Subject(s): Buildings Building materials Roofing: Abstract: "Splitting" or "shrinkage" failures in built-up roofing membranes have become a critical problem to the roofing industry.

The problem is defined and examples are given. In order to understand and analyze the causes of these failures, laboratory studies were made to establish and measure the movement characteristics of various roofing membranes when subjected to thermal : Donald E. Brotherson. The house roof dumps tons of water on the patio roof when it rains, so it needs to withstand lots of water.

With Gaco the patio roof is water tight and set for life. The seams of the old composite rolls are completely sealed. Modified Bitumen Roofing Membranes 5 The deck must be completely dry.

NOTE: Dibiten will not be responsible for leaks resulting from splits in the roof membrane which are caused by cracking of the gypsum or light-weight insulating concrete deck, regardless of the causes of the deck cracking. Non-Nailable Deck Types: Steel Decks. Built-Up Roofing Specifications General Information The following section provides the application specifications currently available from Johns Manville (JM) for built-up roofing membranes and covers both hot aphalt and cold adhesive applications included in Section 6A and 6B.

All general information contained in this. Built up roof membranes, referred to by the acronym BUR, have been in use in the U.S. for more than years. These roof systems are commonly referred to as "tar and gravel" roofs.

BUR systems generally are composed of alternating layers of bitumen and reinforcing fabrics that create a finished membrane. Roof Surfacings On flood coat and aggregate roof surfacing, hot bitumen is poured onto the roof membrane at a rate of approximately psf, followed immediately with aggregate meeting ASTM D at a rate if about 4 to 5 psf.

Most popular on low-slope roofs below inches per foot, these membranes meet Class-A fire resistance and are. for roof coverings commonly used on high-sloped roofs (such as asphalt shingles, clay and concrete tile, wood shakes and shingles, and metal roofing) and for roof coverings typically used for low-slope applications (such as built-up roofing, thermoset single-ply roofing, thermoplastic single-ply roofing, sprayed polyurethane foam roofing.

Built-up roofing, also called BUR, is the most common roofing material used on low-slope roofs. It is composed of alternating layers of reinforcing fabric and bitumen (asphalt) and is finished with a top layer of aggregate, such as stone or gravel. Built-up roofing system In roofing applications, ballast can perform all of the following functions except contribute to air circulation under the roof membrane.

Conventional: The Built Up Roof (BUR) • constructed of 3 to 5 layers of bitumen impregnated felts, layered on the roof deck with heated asphalt • may be located either over or under the rigid insulation • top layer of gravel ballast to protect asphaltic materials or insulation from UV rays, and to weight roofing materials against.

Mfm Building Product 50W36 Mfm Peel & Seal Self Stick Roll Roof Ing (30, 36 in.), White. Sikaplan is a cost-competitive, single-ply PVC roofing membrane designed for low-slope roofing applications. Unlike Sarnafil, which is formulated to perform above and beyond the industry standard, Sikaplan is formulated to the industry standard like the rest of the thermoplastic roofing membranes.

These membranes are usually made of several layers alternating between bitumen and reinforcing fabrics (TPO and EPDM are single layers). This combination results in a finished membrane. The three types of bitumen material used most commonly in built up roofing systems are asphalt, coal tar, or cold-applied adhesive.

Single-Ply Membrane vs Built-Up Roofing [Infographic] Here at West Roofing Systems, we’ve been installing Single-Ply Membrane Roofing for over 38 years. We have helped many customers decide which roofing systems is best for them. Built-up roofing system. In roofing applications, ballast can perform all of the following functions except: contribute to air circulation under the roof membrane.

In construction, perms are associated with: Vapor Retarders. The terms batten seam, standing seam, and flat seam all describe types of. We illustrate blisters in built-up roofing membranes (these can occur in modified bitumen roofs and EPDM roofs too), alligatoring or cracking (sketch and photo just below) on flat roofs, particularly where tarred surfaces or un-coated modified bitumen roof surfaces are exposed without gravel or mineral granule protection.

or roof membranes in place. Base Ply: the bottom ply of roofing in a roof membrane or roof system. Base Sheet: an impregnated, saturated or coated felt placed as the first ply in some multi-ply built-up and modified bitumen roof membranes.

Blocking: sections of wood built into a roof assembly, usually attached above the. Like built-up roofing (BUR), it is usually installed on low-slope and “flat” roof structures. Application of this type of roofing is less labor intensive than the built-up roofing method that applies several layers to create a waterproof membrane.

prevents condensation from occurring within the roof assembly and causing wetting of insulation or blistering of the roof membrane. Compare a bituminous roof membrane to a single-ply roof membrane. A built-up roof membrane is created on the roof surface by laminating overlapping layers of felt together with bitumen.

Roof cover or membrane—most low-pitch membranes or assemblies can be classified as built-up roof membranes, metal panel roof systems, modified bitumen sheet membranes, synthetic rubber membranes (e.g., EPDM), thermoplastic membranes (e.g., PVC, TPO), or spray polyurethane foam-based (SPF) roof systems.

The roof area should be inspected after every hailstorm to insure that no damage has occurred. All commercial low-slope roof membranes can be damaged by hail to some extent. Damage can occur from improper installation or material defects.

Hail damage to built-up roof systems typically occurs due to improper application of surfacing aggregate.Flat and low-slope roof designs to avoid moisture & condensation problems Flat roofs call up a whole new breed of building moisture problems How to avoid moisture traps under flat roofs Avoid mold & rot caused by moisture trapped under un-vented flat roofs Questions & answers about the cause, cure & prevention of moisture problems in flat roofs and similarly hard-to-ventilate structures., How.