a regular deck can support a certain amount of weight per square foot, but a deck roof requires significantly more support because of the added weight of the roof. larger footings - and in the case of certain types of roofs, additional footings - also are required for a roofed deck.
the size of the screened-in deck is going to determine the price per square foot the homeowner will be charged for. for instance, if the price is $60 per square foot for a 300-square-foot screened-in deck, the homeowner is going to be paying around $18,000.
one of the greatest factors when pricing a covered deck will be the materials. pressure treated wood, for example, can cost as little as $5 per square foot, whereas composite decking can be your costliest option, retailing for as much as $25 per square foot. location. as with anything, the geographical range can play a role.
an average deck costs about $33 per square foot. a patio, on the other hand is not directly connected to the house. the patio is typically at ground level and may or may not be covered; patios cost between $11-$21 per square foot. a porch is somewhat similar to a deck.
inches values should be entered as real number means 3 inches = 0.25 feet; 6 = 0.5; 9 = 0.75 and so on. 2 l length of rooftop deck area in feet. input real numbers only. rooftop deck cost calculator computes project size, average completion time, and total cost to build a new deck.
how to build a roof over a deck. typical decks are designed to support 55 psf lbs per square foot . porch decks require 25 additional psf for roof loads for a total of 80 psf. as a result, most decks have inadequate footings to support a new porch roof. the footings for porch decks must be larger than deck footings.
felt roofs aka: built-up roof are made from ashlapt and ashlapt-saturated felt roofing material typically designated by weight per 100 square feet. so, 15-pound felt is 15 pounds per 100 square foot. such roofs are laid up in multiple plies sometimes with a heavier top ply, which sometimes comes with a mineral surface similar to shingles .