To prevent avoid penetrating the roofing membrane.
How to build a concrete roof deck.
The footings for porch decks must be larger than deck footings.
Railing posts can be attached to the eaves as shown.
How vinyl waterproof decking benefits roof decks.
For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.
Many porches use 22 diameter corner and intermediate.
There are a few things that make pvc decking different in regards to roof decks.
Typical decks are designed to support 55 psf lbs per square foot.
We will walk you through the entire process from siting the patio roof to raising posts attaching beams and installing the roof.
It also incorporates coolstep technology so you don t burn your feet and can also potentially lower your.
Check out our deck footing frost map to help you understand how deep your footings will need to be excavated.
To make a grout you will need sand and portland cement.
First it s designed to be waterproof and walkable whereas most other flat roof materials are not.
This raised deck is intended to be attached to a house and sturdy enough to accommodate future additions such as a roof.
A concrete roof is exactly what it sounds like.
Add some water to get a flowing consistency.
Step 10 pouring the grout.
As a result most decks have inadequate footings to support a new porch roof.
Constructing the concrete roof deck.
You can build the structural deck out of concrete as it sounds like you are doing or wood frame construction.
Exact specifications vary but most concrete roofs are several inches thick.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Take a bucket and mix 2 1 2 parts of the sand with 1 part of cement.
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One concern is that the concrete must develop the compressive strength intended by the structural engineer in the design of the roof deck.
However you need to go well beyond code to build a reliable leak proof deck over a living space.
We will teach you how to determine the code compliant size of your footings based on the soil type and tributary loads.
For this step you will have to make the grout mixture.
A grout will hold the flat concrete roof in place.
You can also enclose it later to create a screened in or four season porch.
A solid slab of concrete capping the top of your house.
If local codes allow setting the overhead directly on an existing slab but the concrete is not thick enough to support the overhead s weight you will.
Learn everything you need to know about installing concrete footings to support your deck.
