Ventilate the roof according to current building codes step 3.
Proper intallation of h clips on roof shaething.
This is what the apa engineered wood construction guide has to say about h clips.
However for maximum security install a clip at each point a diagonal beam meets a horizontal one.
A 1 8 inch space between adjacent panel end and edge joints is recommended unless panel manufacturer indicates otherwise.
Keep these tips in mind when roofing in hurricane areas.
Plywood clips also referred to as h clips or panel edge clips are small metal brackets placed between the unsupported edges of plywood sheathing to effectively reduce the support spacing and stiffen the plywood.
For improved performance consider thicker roof sheathing panels panel edge clips or panels with tongue and groove edges.
If you re fastening 1 2 inch or 5 8 inch zip system roofing panels to rafters or trusses on the typical 16 inch or 24 inch spacing h clips aren t needed.
A low slope roof below 2 12 pitch at the same span is an exception however and an h clip is specified.
The connection between the roof sheathing and the structure is a vulnerable point that is known to fail during a hurricane.
For 7 16 inch zip system panels huber engineered woods requires panel edge support blocking or approved edge clips if the on center spacing of the framing members exceeds 16 inches.
This video shows how some roofs fail under heavy winds in uplift situations.
Check building code requirements for installation of panel edge clips.
Check the nailing surface is level step 2.
One or two h clips will often allow a longer span between roof trusses rafters.
Cover sheathing with.
If the h.
During a hurricane the strength of the sheathing on the roof can greatly impact the homes ability to weather the storm.
H clips are also necessary for other wood panel thickness and span combinations.
Properly fasten panels including fastening and spacing hints step 4.
Your roof or wall will probably have several places where these hurricane clips need to be installed.
Their installation diagram also shows h clips although tongue and groove edges or blocking is noted as an alternative in the text above.
