Take a look at our step by step guide for building a shed roof over your existing deck.
Using grace roofing under deck post.
It is backed by grace the name that roofing professionals.
Round up the materials for an under deck drainage system.
Wide and 12 ft.
If you want to be able to use the space under your deck during rainy weather installing corrugated roofing panels to the deck s underside can solve the problem.
I have built below deck storage sheds using plastic corrugated roofing attached with rubber gasketed roofing screws.
For good drainage you want a minimum of 1 8 in.
In one case i fastened the corrugated plastic roofing to strapping nailed perpendicular to the joists above using tapered spacers to create slope.
Step 1 determine the desired slope of the panels under your deck.
He attached the panels with special roofing screws that have hex heads and neoprene washers for sealing.
But if the decking laps over the fascia the collection zones are limited to the 1 4 inch gaps between the deck boards a cumulative 121 2 inches.
Grace select roofing underlayment offers significant benefits compared to granular surfaced underlayment s at similar price points.
Rune bought corrugated fiberglass panels at a home center to use for his under deck roof.
Coating the post base with asphalt roofing cement driveway sealer tar or a bituminous self adhesive flashing tape are fairly common practices.
These are used to attach the support posts to the frame of the deck.
For a house roof the recommended minimum slope is 2 5 vertical inches for every horizontal foot but a nearly flat.
Per foot of slope away from the house preferably 1 4 in.
In concept these practices would seem to block some moisture transfer into the wood but there isn t any research to suggest that it increases longevity.
Among the newest is the raintight system introduced at deck expo 2014.
If you re building a new deck cover the joists with rubbery adhesive backed flashing tape this will add 50 or more to the cost of your deck but that s cheap insurance to prevent deck joist rot.
A number of recently introduced under deck ceiling systems use corrugated aluminum or plastic panels designed to catch water that drains through decking and channel it away from the area below.
The perfect blend some underdeck panel colors go well with almost any design you can come up with such as this pool fountain combo and a handsome double deck accented by purple railings and a musket brown underdeck.
Install post base connectors.
Notice the white gutter on the left which effectively channels all rainwater runoff from the upper deck out into the backyard.