Roof Deck Slab Thickness

For a composite deck the factor should be incorporated into the effective thickness that is defined with the deck properties.

Roof deck slab thickness. When using this type of deck in conjunction with bonded vapour control layers it will be necessary to first install a random nailed isolating layer prior to the installation of the main roofing system to cover the joints between. Once the waterproofing membrane is laid drying out of the structural slab will mostly take place from the underside of the deck. Double nailed at each joist. As the interlock between the concrete and the deck is made through embossment and built in ribs resulting in a reinforced concrete slab maxroof has now become one of the biggest metal deck exporter in india.

Large amount of water vapour can evaporate from reinforced concrete or a wet screed. Laid with staggered joints. A minimum thickness of 18mm these will be able to span up to 600mm. Plywood boards used for the deck should be.

Cross ventilation beneath the deck is usually. Insulated panel with a membrane top sheet. Composite decks comprise a polyisocyanurate pir insulation core factory adhered onto a profiled steel liner sheet with a variety of top sheet options. Plywood for a roof deck should be of marine grade and suitable for external use to bs en 636 or a bond class 2 or better complying with bs en 314 check.

Thickness astm c373 water absorption astm c1026 freeze thaw astm c648 breaking strength ansi 137 1 slip resistance 3 4 0 1 resistant 3400 lbs 0 60 unilock architectural roof deck slabs natural stone and porcelain tile have been manufactured and quarried to meet and exceed astm and csa standards. Is one of the common causes of flat roof waterproofing failure. For example if you have 4 inches of concrete above the flutes and want to use 0 35ig the effective thickness would be 0 35 4 1 4 inches.