wind uplift

wind uplift

A negative force (i.e., an upward pull) which acts on a roof because of wind.
References in periodicals archive ?
Tenders are invited for remove existing epdm associated flashings at roof penetrations,(except high walls) the underlying epdm roof assembly is to remain in place; repair any damaged and/or loose roof insulation; build or rebuild all curbs in order to achieve the required 10" base flashing height; remove all roof vent penetrations on vertical surfaces, and store for re-installation; mechanically attach a nominal (1/4" thick densdeck 4x8 boards to meet fm i-90 wind uplift requirements; 1 fastener per every 2 sf; over existing 10" iso insulation.
Both products are ANSI/SPRI/FM 4435/ES-1 tested to comply with the International Building Code, along with FM approved for wind uplift protection.
With that amount, homeowners can brace garage doors, install plywood shutters, and seal the roof deck to reduce wind uplift.
Protected membrane systems are vulnerable at the support board attachment to the structural deck, according to the RCI report Wind Uplift Resistance Evaluation of Commercial Roofs With and Without Add-ons.
Wind uplift is caused by the introduction of wind pressure underneath the roof deck where it can cause the roof assembly to pull away from the rafters literally blowing, or tearing, the roof off the building.
We're used to testing wind uplift with typical rectangular buildings, but not odd-shaped structures like a stadium," Ducharme says.
In each case, FM Approvals testing must be done with simulated wind uplift pressure with the module attached to a test frame using a pleated air bag and with tensile loading of the fasteners/clips.
Their major function today, aside from confusing architects, is to protect the edge of roof assemblies from wind uplift forces.
Follow the manufacturer's instructions carefully, as there are some restrictions on blind-nailing wider planks to prevent wind uplift.
The chord bracing prevents buckling of the trusses due to wind uplift.
In reality, the wind uplift pressure is dynamic, and the response of the roofing structure is dynamic as well.
of resistance to wind uplift, connecting interior floors and partitions.