On a house advertising a recent roof replacement i found there were missing roof sheathing clips.
Roof sheathing missing h clips.
All over this roof the sheathing panels which is the wood which makes up the roof and into which the shingles are nailed were out of alignment.
Grip h clips are designed to make installing roof deck sheathing easier and faster with better spacing.
Also h clips reduce any buckling of those edges over time so they are a good idea even if not always required.
20 gauge galvanized panel sheathing clip 250 qty grip rite grip rite 1 1 4 in.
Smooth galvanized coil roofing nails 7200 pack simpson strong tie pscl 7 16 in.
20 gauge galvanized panel sheathing clip 50 qty.
This is due to the absence of clips.
Panel edge clip h clip installation errors misplaced and or missing edge clips top.
Simpson strong tie panel sheathing clips are used to brace unsupported sheathing edges and provide a 1 8 gap to address shrinkage and expansion of roof sheathing.
There were no sheathing clips anywhere.
In summary h clips have the ability to decrease deflection in wood panels and reduce the costs required by a building project.
If the h clips are missing if h clips are missing when you are walking on a roof it is often discernible by the slight flexing when you step on an unsupported plywood edge.