Choosing the Right System – Commercial and Residential Roof Decks

A Roof deck is the basic structural component that will support the roof of your Building. There are many deck types to choose How To Get Roofing Leads On Facebook from and the deck type that you choose will influence the type of roof system that will be installed on your roof.
Common deck types used with TPO and PVC roof systems include the structural steel type of deck which has a minimum requirement of a 22 gauge unless specifically approved by Everguard contractor services. The structural concrete roof deck is available and the minimum requirements are 2500 psi compressive resistance. Minimum 2″ thickness for precast and 4″ thickness for poured in place. This roof deck must be cured for 28 days of poured in place.
Some tips for concrete is to always check for dryness using ASTM D-4263. Grout joints of precast slabs with masonry grout. If cellular How To Remove Moss From Roof lightweight fill is used as a leveling surface, joints in slabs must not be sealed to provide venting and drying from below.
Wood planking is another roof deck to consider using. For the wood planking the minimum requirements are 1″ nominal thickness, tongue and groove or splined edges are required. Boards must have bearing on the rafters at each end and be securely fastened. When using plywood or oriented strand board, also known as OSB, the minimum requirements are 15/32″ thickness, the tongue and groove edges or full blocking is required, the OSB must have a structural 1 rating, the plywood must be of an exterior grade, the minimum 4 ply and not less than 15/32″ thick. The joist spacing must not exceed 24″ o.c., and the gaps must be 1/8″ -1/4″ maximum and match vertically to within 1/8″.
For a gypsum concrete roof deck, the minimum requirements are they have to be 2″ minimum of a thickness. Steel reinforcing mesh and form boards are required for poured in place decks, steel reinforced edges are required for the precast decking units. For the cementitious wood fiber which is also known as Tectum. The minimum requirements are 2″ minimum thickness, the tongue and groove panel edges are required, must be anchored against lateral movement and wind uplift. For lightweight insulating concrete the minimum requirements are a 2″ thickness, has a slotted steel decking with slot in the bottom of flutes for any drainage problems. For the loadmaster decks the minimum requirements are minimum 25 ga. Steel decking, 15/16 deep with a A�” thick mineral board top panel.

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