Roof Deck Drainage Design
One gully can drain at least 150 m2.
Roof deck drainage design. Aco offers functional solutions which are specially designed for flat roof areas and which ensure the water is drained effectively. Our exclusive dual functional structural deck flange and combination roof drains streamline specifications saving installation time and labor. Flat roofs are prone to leaking even without decks because of design errors improper materials and improper installation. Convert the space under a second story deck into a dry spacious patio by installing this simple under the deck roof and gutter system.
Trex rainescape under deck drainage system. The most basic requirement for proper plaza deck design is proper slope to drain provided by the structural slab. Smith carefully designs and manufactures a full line of roof drains deck drains scupper drains promenade and parking area drains and more to satisfy both the artistic eye of the architect and the calculating mind of the engineer. Unfortunately adding tapered insulation to re pitch a roof deck costs about as much as the rest of a re roof job.
Drainage solutions watts roof drains provide flexible solutions for specifiers and installers in any commercial roof application. Many times when roof decks are installed they further damage roofs causing more severe leaking and drainage problems. Proper waterproofing for a roof deck involves installing an epdm membrane and flashing around deck. Design professionals frequently specify the minimum code permitted slope with little if any consideration of the resultant valley slope created by the intersecting planes figure 1 ponding water is commonly observed at valley intersections for low slope roof and deck.
Leaks around the flat roof drain seerp into the fascia aug 29 2012 terry weir mbe said. Rooftop metal deck idea. It might be easier to re frame a sloped surface to drain to a suitable roof edge. For smaller surfaces gravity drainage systems are the ideal solution.
Double your outdoor living space with an under deck drainage system. You can also add small garden trees to aid to your green design. If the deck is a steel deck appropriate roof substrate sheathing i e gypsum based boards plywood may be secured to the metal deck and the fully reinforced rubberized asphalt membrane applied to the surface. One of our readers rune eriksen sent us photos of his design for a home built deck drainage system and we were impressed enough to check it out.
For larger roofs siphonic drainage systems should be installed. The trough and downspout design drains water away from your deck allowing you to create a dry patio or storage area on the ground level below.