Division 7 - Thermal & Moisture Protection

• Waterproofing


  A method of making building surfaces impervious to water
• Dampproofing


  Applying a water-impervious material or a vapor barrier to a surface, usually slab-on-fill, to prevent the penetration of moisture, from the ground or the exterior or to prevent the penetration of condensate to the surface
• Water repelling or water sealing


  Applying, by brush or low-pressure spray, a clear silicon water repellent or sealant to porous surface material such as cement plaster and bricks to prevent weathering or the growth of algae and moss
• Thermal insulation


  Method of installing thermal barriers in surfaces of structures to keep the heat or cold away from the interior spaces
• Termite (anay) proofing


  A method of preventing entrance of termites
• Termite proofing methods


  • Soil poisoning
  • Factory-applied wood preservative
  • Site-applied wood preservative
  • Termite shields
• Powder post


  A condition of wood which has decayed to powder, or has been eaten by worms which leave holes full of powder
• Rot


  Decomposition in wood by fungi and other microorganisms; reduces its strength, density and hardness
• Rat proofing


  A method of protecting rooms against the intrusion of rats and other small destructive animals from gnawing the wooden parts of the house and habitating the under-ceilings and under-floors of houses and buildings
• Fire proofing


  Application of cover materials to structural steel components or systems to provide increased fire resistance
• Floor protection


  A method of protecting finish floor surfaces from wear and tear or from chemical abrasions due to heavy use
• Rust proofing


  A method of protecting the steel and other ferrous materials from corrosion
• Descalers, paint and chemical strippers


  A method of removing old paint by the use of a paint remover; and stains, rust, algae or even cement build-up on forms or equipment, by the use of a chemical stripper or descaler
• Paint remover


  A liquid which is applied to a dry paint or varnish to cause it to soften or lose adhesion so that it may be removed easily

  
• Stripper


  A liquid designed to remove coatings by chemical and/or solvent action
• Descaler


  A liquid designed to remove scale that forms on the inside of hot water heaters, boilers, etc.
• 1. 6


  Gypsum-based, cementitious spray applied fireproofing product from Grace Construction Products
• Application locations for waterproofing


  • Top of roof decks
  • Top of concrete terraces, balconies, ledges and canopies
  • Under-sheathing for wood shingle and tile roofing
  • Interior surfaces of water tanks
  • Exterior surfaces of concrete roof gutters
  • Inside surfaces of plantboxes
  • Kitchen floor
  • Toilets
  • Basement floor and walls
  • Elevator pits
  • Swimming pools and fish ponds
  • Machine, mechanical and pump rooms
  • Refrigeration and cold storage rooms
• Four types of waterproofing


  • Integral type
  • Membrane type
  • Fluid type
  • Cementitious type
• Integral type waterproofing


  Powder form waterproofing compound mixed with the cement-aggregate mixture
• Membrane type waterproofing


  A hot or cold membrane applied to the surface
• Membrane type waterproofing examples


  • Asphalt paper laid with hot asphalt
  • Self sealing asphalt paper
  • BITUTHENE CP for toilet slabs
  • BITUTHENE 3000 for roof decks
  • ICE AND WATER SHIELD self-sealing and self-adhering rubberized membrane for main entrance canopies made of metal
• Fluid type waterproofing


  A fluid applied elastomeric coating formulated to waterproof and preserve the substrate of concrete, wood, and steel
• Fluid type waterproofing examples


  • NEWFLEX
  • NEWFLEX R100 for ledges
• Cementitious type waterproofing


  Powder form waterproofing compound mixed with water and applied by brush to the surface to be waterproofed
• Cementitious type waterproofing examples


  • MORTASEAL
  • HYDRATITE for concrete gutters, ledges
• Ground beam water proofing
• Base slab - pipe penetration water proofing
• "Through wall" penetration water proofing
• Upstand detail-shear member water proofing
• Typical drain detail water proofing
• Typical pipe detail through roof slab (liquid membrane detail) water proofing
• Typical pipe detail through roof slab (sheet membrane detail) water proofing
• Expansion joint cover deck or wall junction water proofing
• Application locations of heat insulators


  • Top or bottom of roof decks
  • Below roofing sheets
  • Above suspended ceiling
• Types of thermal insulators

  • Loose Fill - fibrous type and granular type
  • Blanket Insulation - made from fibrous materials such as mineral wool, wood fiber, cotton fiber or animal hair
  • Block or Rigid Slab Insulation - stiff and inelastic such as foamed plastic, cellular glass, foamed concrete, etc.
  • Sprayed-on Insulation - polyurethane foam, asbestos fiber mixed with inorganic binders, vermiculite aggregate with a binder such as Portland cement or gypsum and perlite aggregate using gypsum as a binder
  • Foamed-in Place Insulation - a polyurethane product made by combining a polyisocyanate and a polyester resin
• Blanket Insulation example


  • PARSEC Thermo Brite II for underneath metal roofing insulation
• Block or Rigid Slab Insulation example


  • STYROFOAM ROOFMATE SL extruded polysterene board as manufactured by DOW Chemicals, for inaccessible roof decks
• Sprayed-on Insulation example


  • MBA SPRAYED-ON POLYURETHANE INSULATION; 25 mm thick x 1.5 pcf density for accessible roof decks
• Types of roofing


  • Sheet Metal Roofing
  • Plastic Roofing
  • Tile Roofing
  • Shingles