If you want to get the most bang for your buck consider installing a deck drainage system.
Roof deck drainage.
Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs.
Trex rainescape under deck drainage system.
Roof drains watts roof drains provide flexible solutions for specifiers and installers in any commercial roof application.
Depending on the size of the roof deck you will want it to drain toward the middle or to the edges.
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.
If the span under your deck is 12 ft for example the purlin at the outer end of the deck should be 3 in.
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.
Since its founding in 1900 as the hydromechanics division the zurn specification drainage operation has been a leading producer of roof drains deck drains and floor drains for the commercial industrial and institutional building construction industry.
Lower than the purlin along the house 12 x 1 4 3.
All the zurn products are engineered and manufactured to meet all ansi standards.
Building a deck is an investment in your home.
Our exclusive dual functional structural deck flange and combination roof drains streamline specifications saving installation time and labor.
First mark all the purlin locations on the deck joists.
If your roof deck is large enough you want to create slope drainage from two sides toward the middle.
A deck drainage system creates a dry usable space underneath your second story deck and protects your deck substructure from moisture which can lead to wood rot and decay.