How do you build a deck on a flat roof?

Floating Roof Deck Construction Details:

The most common type of floating roof deck is one made up of two or three pieces of plywood attached to each other with nails. These types are called “two-piece” because they consist of two separate sections glued together. A third piece, usually a metal plate, is added at the top to keep the whole structure from tipping over if it gets wet during rainstorms.

However, these types of decks tend to have poor water drainage characteristics. They are not very strong either and they cannot withstand windy conditions well.

A better choice is one made up of four or five pieces of plywood glued together, which makes them stronger than the “two-piece” type but still allows moisture to escape easily. Plywood panels are available in different thicknesses, so there’s no need for extra nails when attaching them all together. Some manufacturers make their own plywood panels.

Others use sheets of plastic that are cut into various shapes and sizes.

If you’re building a deck on a flat roof, then you’ll want to choose a material that will allow your deck to float above the surface of the roof without sinking too much. The best materials for this purpose include concrete blocks (also known as “concrete shingle”), gypsum board, fiberglass batts, wood chips or even metal pipe. The advantage of this type of deck is that it can handle both high winds and heavy rains without falling apart.

Another good option is one made up of six or seven pieces of plywood glued together. These types are known as “seven-piece.” They’re much stronger than the “six-piece” type, but they don’t hold their shape as well under pressure.

Wood pallets, although cheap and readily available, are not recommended. The weight of the people standing on your deck will eventually cause the nails to pull through the soft wood, and then your deck will plunge down onto the roof below.

A concrete block floating roof deck is very easy to build and requires minimal skill. Begin by placing the blocks side-by-side across the entire length of the roof, just like laying bricks. Then fill in any gaps on both sides with more blocks.

These are often made with red or green lumber. If you choose a seven-piece deck, you’ll probably want to add metal screws or bolts to keep things secure. Some manufacturers also offer eight-piece decks, but these are only used in industrial settings.

Deciding on the right materials for your particular project can be tricky. If you’re not sure about what materials to use, your city or county should have guidelines that you can follow. I live in a somewhat rural area.

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Our local building codes are based on a reference table that includes information about which materials and which methods can be used in different situations.

Tip: Always check with your city or county to see if they have any specific building guidelines.

Plywood is easily available at most home centers and hardware stores. It comes in several thicknesses and is suitable for most deck projects. Each region has different regulations, so it’s best to check first.

The easiest way to build a platform is to make it out of wood. A plywood deck is okay, but if you want to make your life a lot easier you can use hardwood instead. The heaviest and most expensive type of decking is concrete.

It’s also the most durable, and if installed correctly can last for more than 50 years.

To build a strong plywood deck, you will need:

You can use either galvanized screws or bolts and nuts to secure the plywood panels together. You’ll need about 60 pounds (27 kilograms) of screws or bolts for every 500 square feet (46 square meters). Use a drill to make the pilot holes in each board before you insert the bolts or nuts.

Tip: The larger the deck, the stronger you’ll want the attachment points to be.

(4) 4′ by 8′ sheets of 3/4″ plywood

(2) 2′ by 8′ pieces of 1/2″ plywood

(4) 2′ by 4′ pieces of pressure-treated plywood

You can use either wood glue or construction adhesive to join the decking together. Always use a clamp to secure the joints while the glue dries.

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If you’re working with a large deck, it’s not unusual to need a couple hundred pounds of bolts or screws. You can buy these items at most home centers and hardware stores, but it might be cheaper to get them online.

You’ll need to lay out the deck in small sections that are easy to work with. Attach the plywood panels together with galvanized screws. Space the screws about eight inches (20 centimeters) apart in each panel.

It can be extremely heavy, but if you want to make your platform even stronger you can use concrete to anchor the posts. Always make sure that there is a good drainage system in place before pouring the concrete, or else you could end up with a sinkhole. You can hire a professional to do the work for you if you don’t want to pour the cement yourself.

You’ll need the following materials:

To build a floating concrete deck, you can use one of two different methods. One uses wood posts set in concrete, the other uses metal beams and slabs. Beams are attached to the house with bolts or metal anchor plates.

You can also fill the hollow spaces with concrete if desired.

Claw your way up from the subterranean depths of this damp cave.

Drill holes in the posts and fill them with concrete using a mixture of sand and gravel. The posts need to be at least three feet (one meter) longer than the actual height of your deck.

Stabilize the top edge of the post by embedding it into the ground with a few inches (centimeters) of post still above ground. Attach the joists to the topside of the post and then lay down the plywood panels on top. The cold and clammy rocks surround you as you make your way out of your underground sanctuary.

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The sun’s rays beat down on you, but the air is cool and fresh. It’s a struggle to leave the earth behind and venture into this open area, but you feel compelled to do so.

A strong wind pushes and pulls at your fur and you lower your head softly to avoid it. The forest around you is thick and lush with vegetation. You can see many types of plants that you’ve never seen before, and the ground is soft and spongy beneath your feet.

The trees are covered with strange fruits that resemble nothing you’ve ever seen before.

You see a small stream running downhill towards a larger body of water. All around you, little creatures are going about their daily routines — birds flying overhead, small mammals scurrying among the underbrush, lizards basking in the sun. There is so much life here.

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