b'Acurlite Structural Skylights, Inc.26 Installation Manual 27Rafter For sloped glazing, a main, nominally vertical, framing member.Maintenance & CleaningSafety Data SheetData for evaluating hazards, toxicity and proper handling of chemicals, chemical compounds and chemical (SDS) mixtures. General Inspection of SkylightSafety Glass A strengthened or reinforced glass that is less subject to breakage or splintering.See also Fully TemperedAn annual inspection of the skylight system should include the following:Glass and Laminated Glass.The use of safety glass in hazardous locations.Building codes require safety glazing in hazardous conditions Safety Glazing such as skylights or sloped glazing. Laminated glass is required to reduce the possibility of any part of theVisual inspection of all silicone joints for cracks or damage glazing from vacating the glazed opening when broken. Visual inspection of flashings for damageSealant A compound used to fill and seal a joint or opening. Visual inspections for broken joints or slipped connections especially in areas subject to excessiveSetting Block Generally rectangular, cured extrusions of neoprene, EPDM, silicone, rubber or other suitable material onbuildingmovementwhich the glass product bottom edge is placed to effectively support the weight of the glass. Check system for any loose screws or fastenersShim A thin flat piece of suitable material used to level or plumb a glazing system during installation. Check for any accumulated debris on exterior of skylight and remove if possibleA sealant having as its chemical composition a backbone consisting of alternating silicon-oxygen atoms. If skylight system includes an exterior gutter system check for and clear any accumulated debrisSilicone Sealant Visual inspection of all glazing materialsA glazing and framing assembly consisting of sloped and sometimes vertical surfaces; the assembly is general-Skylight ly inserted into the roof of a building to admit daylight. Visual inspection of all surrounding conditionsSloped Glazing A glass and framing assembly that is sloped more than 15 from vertical and which forms essentially the entire roof of the structure.Snow Load Loads imposed on a building wall, roof or skylight by the accumulation of snow; generally a long term load. Skylight System CleaningA written document often accompanying architectural drawings, giving such details as scope of work, ma-Specification terials to be used, installation method, required performance and quality of workmanship for work underAluminumwhether cleaning a painted or anodized finish a mild detergent and warm water may be contract. applied safely to any aluminum finish. Use of a soft cloth, sponge, chamois or soft bristled brush can be Square Two construction members that meet at a right (90) angle. used to apply the cleaning solution.The surfaces should then be rinsed thoroughly with clean water to Structural SiliconeA system in which the glass product is bonded to the framing members of a glazing system utilizing a structur- remove all cleaning solution, dirt and debris.Avoid the use of cleaners such as steel wool,abrasive acids Glazing al silicone adhesive/sealant without the presence of outdoor retainers or stops. and chemical solutions.Substrate A base material to which other materials are applied and/or attached.An element made of material with relatively low thermal conductivity, which is inserted between two mem- Glass CleaningThermal Break bers having high thermal conductivity, in order to reduce the heat transfer.When dirt and residue are visible on the glass surface it is recommended to clean the glass.Thermal Movement Thermal movement is the expansion and contraction of the glazing system elements due to the rise and fall of their temperature.Mild detergent, with large amounts of water can be used to clean glass. Always use as much water as Tooling The operation of pressing in and striking a sealant in a joint, to press the sealant against the side of a joint andpossible when cleaning.Bristle mops used in window cleaning can be used safely on skylight glass.A soft secure good adhesion; the finishing off of the surface of a sealant in a joint so that it is flush with the surface.cloth, sponge or chamois can also be used.Avoid the use of abrasives of any kind.Two-Part Sealant A product comprised of a base and curing agent or accelerator, necessarily packaged in two separate contain-ers which are uniformly mixed just prior to use. Rinse the entire glass surface with plenty of clean water starting from the top of the skylight unit working Unit Skylight A complete factory assembled and glazed skylight. downward. The excessive dirt and debris must be rinsed from the glass before applying the cleaning solution. U-Value The overall coefficient of heat transfer; a measure of the heat transfer through material or construction due to the difference in air temperature on the two sides. When glass is completely rinsed of dirt and debris the cleaning solution can be applied to the surface. Weephole (Weep) An opening that allows water to drain. A squeegee, soft bristle mop or a soft sponge can be used to wash the glass surface.Make sure plenty of clean water is applied to the glass surface to rinse the cleaning solution from all surfaces.Do not allow Wet Seal A method of sealing utilizing gunnable sealant as the primary seal. the cleaning solutions to remain on the glass surface for an extended period of time before rinsing it off Wind Load Load on a structure and it components due to the effects of the wind. with plenty of clean water.www.acurlite.com570.759.6882'