![]() Applying a little bit at a time is the key, especially when doing complicated shapes or when using very light weight formwork. The next day this shell will be semi-hard and you can easily bang out spots that aren't right (warts) and apply another thin coat to cover the bald spots. If you try to spread it around too much or completely cover the lath you will find that the mortar wants to fall through the lath. Dig mortar out of large buckets and just gently set in on top of the lath. ![]() ![]() We typically "lay" this on with brick trowels. It's good to have a movable scaffold below and a fairly well attached "skywalk " above when building larger vaulted roofs.Ī 3/4" light weight shell goes on top of the plaster lath and before the pour. Pour 2" flat floor for second story- mix: 2 parts light weight aggregate, 3 sand and pea gravel,one cement-volume.Fill low sides of vault with loose light weight aggregate (or empty soda bottles), to level out for the second floor.Polish the same day as the pour, it sticks better and can be thinner. 1/8" polish - mix: 3 screened sand /one cement, sponge finish.4-8" pour with light weight concrete- mixed 5/1 (structural) to 8/1 (insulative) OR 2 1/2" hard concrete.Note that rebar is almost never needed in the membrane of small vaults. #66WW mesh - it can be thinner or thicker than the formwork mesh - this mesh stays in the pour.If you don't have light weight you can use a mortar mix ( 4 sand, 1 cement, 1 lime) 3/4" Shell- 6 parts light weight aggregate, one part cement-by volume -this mix depends upon the aggregate used.(You can substitute plastic mesh onion sacks or burlap on top of reusable chicken wire, for this lath layer, many possible options here) 26 gauge non-galvanized plaster lath - inexpensive in Mexico.2"X2" and 2X4 pine-formwork, (bamboo works well here) holding up the #66ww formwork It is removed after the pour.Curb frame shall have self-adjusting counter flashing. Curbs (by others) shall have a minimum thickness of 5-1/2 inches and shall be designed to support the skylight and thrust of a 20 psf live load. The skylight shall be designed to support 20 psf live load and a 20 psf wind load. Model 311 (Double Glazed, Structural Barrel Vault Skylight) inner acrylic shall be clear, or 2447 white translucent. Model 310 (Single Glazed, Structural Barrel Vault Skylight) outer acrylic shall be clear, 2412 bronze, or 2447 white translucent. Extruded aluminum shall be mill finish, (clear anodized, bronze anodized, flouropolymer (color), or baked enamel (color)). Specifications: Structural Barrel Vault skylight shall be as manufactured by Plasteco. (Click to enlarge) Structural Barrel Vault Sizes – Custom Sizes Also Available Single-GlazedĪdd TB to Model Number for Thermal Break Design Unguarded Skylights Are Holes in Your Roof.OSHA: Roofing Worker’s Death Preventable.Truck Driver Killed in Skylight Accident.Electrical Worker Dies Falling Through A Skylight.Teen Hospitalized After Falling Through Skylight.Man Falls Through Roof on Fort Myers Beach.Solar Company Owner Dies When He Fell Through Skylight.Philly Jury Awards $24.8M to Roofer Who Fell Through Skylight.Single Glaze, Single Wall Curb with Insulation and Wood Nailer.Double Glaze, Single Wall Curb with Insulation and Wood Nailer.Trapezoidal Standing Seam Skylight Screens.Why Choose FallGuard® Skylight Screens?.
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