Putting Slats Under My Deck Roof

Round up the materials for an under deck drainage system.
Putting slats under my deck roof. This pergola offers a metal slanted roof to provide coverage from the hot sun on your deck porch or patio. Rune bought corrugated fiberglass panels at a home center to use for his under deck roof. And then you put down horizontal battens for the roof panel attachment. Heavier underlayment can be put down first but over time it will sag into the spaces as shown by the black lines in the drawing.
He attached the panels with special roofing screws that have hex heads and neoprene washers for sealing. When the old roofs are torn off there are now open spaces between the boards. When a nail ends up in the void it will usually leak within 5 years. Installing wood stripping under a tin roof.
The panels he used are 26 in. Hardware and tools are included for assembly. We live close to the beach and the homes have to be a certain height with the flood zoning leaving a tall front porch with openings that need to be covered. Extremely happy with this purchase.
Tin roofing also known as metal roofing is considered more durable than composition or wood shingles. The resulting vertically oriented chambers can then be ventilated by bringing fresh air in at the bottom and exhausting it out at the top. Among the newest is the raintight system introduced at deck expo 2014. Most often these products need to be installed by licensed contractors so are not a cost saving diy option.
A lot of you have the same thoughts about the lattice under your deck too and were looking for ideas. There s a large range of under deck ceiling products available typically using ceiling or channeling systems installed on the underside of the deck to divert water to the sides. If the original roof deck is boards. Thankfully the homes in our area are full of ideas to replace the lattice work.
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. But generally the major problem is the cost. This involves putting down vertical battens first attaching them through the roof deck to the rafters. The frame is metal and the sunshade is moveable.