A dead load comes from the weight of the structure itself.
Roof on a deck built on concrete blocks.
The builddeck floor roofing decking system is a lightweight stay in place insulating concrete form icf made of expanded polystyrene eps and used to construct a solid monolithic insulating concrete floor and or roof decking system.
The steel joists will provide a strong foundation for the flat concrete roofing.
A free standing roof can be built over a deck paved patio or concrete pad.
A free standing roof needs to have posts sunk into the ground.
Check out our deck footing frost map to help you understand how deep your footings will need to be excavated.
We will teach you how to determine the code compliant size of your footings based on the soil type and tributary loads.
The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab.
To support a wooden deck deck blocks are quick and easy alternative to digging footings.
If the area receives frost the piers can be installed above ground but they normally require additional support underneath.
Learn everything you need to know about installing concrete footings to support your deck.
On aug 26 2009 deck blocks are specially constructed portable foundations generally made from poured concrete.
If it is next to a house or structure it should be secured to the siding or roof of that structure as well to keep it stable through high winds and lashing rains.
Each block is design to support a wooden structure at the primary joints acting in the same fashion as a poured concrete foundation.
This type of deck can only be made in areas that do not have a deep winter frost.
It s a floating deck which means it simply rests on blocks at ground level and is not anchored deeply in the ground.
Spacers let you run sleepers parallel to the house so decking can run perpendicular to the house if that s what you prefer.
Insulated reinforced concrete roof decks the only known roof systems that have consistently survived high category hurricane and tornado velocity winds have been built with structural reinforced concrete decks securely and sufficiently connected to structural reinforced concrete or reinforced concrete block walls.
Above ground deck piers are precast tapered concrete blocks with a wide base that are intended to rest directly on the ground or a concrete base.
Step 3 placing the steel joists.
In many areas an overhead on a concrete slab is allowable if the slab is at least 3 1 2 inches thick and each post can support combined live and dead loads of up to 750 pounds a live load comes from stress exerted by wind people and the like.
You could lay your sleepers directly on the concrete but we bought a 1 2 in thick pvc trim board and cut spacer blocks from it.
