UL 1897-2015 pdf download

UL 1897-2015 pdf download.Uplift Tests for Roof Covering Systems.
7.8 Ail veilical movement of the assembly o components of the assembly during the test are to be noted
and recorded,
8 Conditions of Acceptance 5 x 9 and 10 x 10 Test
8.1 Upon completion of the test, the sample shall be examined and shall comply with all items of the following conditions of acceptance.
8.2 The roof system test assembly shall comply with (a) — (C) during and at the conclusion of the test procedure described in 82 through 8.9:
a) Maintain their structural integrity and weather resistant integrity during the entire test period,
b) Not disengage, separate o loosen at any location of securement to the test frame that simulates the building structure,
C) Shall not allow permanent deformation of a component that results in loss of structural resistance (an example of permanent deformation is buckling of a seam in standing seam metal roofing in a 10 c 10 test)
8.3 The uplift resistance rating shall be stated in increments of 15 lbs/it2 (0.7 kPa) of uplift resistance and shall be the highest level attained by the assembly that was held for the full 60 sec and continued to meet the conditions of acceptance.
8.4 The results of the 5 x 9 Simulated Uplift Pressure Test shall be stated up to. and including, a maximum of 90 lbs’ft2 (4.3 kPa)
8.5 In accordance with 8.6 to 8.9 the specific material or component(s), if utthzed within the assembly, shall receive a Simulated Uplift Resistance Rating. The rating assigned to the assembly shall be the maximum uplift resistance pressure which the assembly maintained for one mm when tested using the appropriate test method referenced above (see 5.1).
8.6 In reference to 8.5, all fasteners, fastener plates and clips shall:
a) Remain securely embedded into or through roof decks and other structural substrates to which they are being fastened to or through.
b) Not pull through, become dislodged, disconnected or disengaged from plates, battens, seams or substrates.
C) Not fracture, separate or break.
8.7 In reference to 8.5, all insulations shall:
a) Not fracture, break or pull through or over fastener heads, plates or battens or show other evidence of opening of Ihe roofing system.
b) Not delaminate or separate from their facers or adjacent components to which they have been adhered.
C) Be permitted to deflect between points of mechanical securement provided that the insulation boards do not fracture, crack or break.
8.8 In reference to 8.5, all membranes shall:
a) Not tear, puncture, fracture or devefop any through openings (tearing of membrane at fastener,distribution plate o batten is allowed up to ultimate failure).
b) Not delaminate or separate from adjacent components.
Exception: Mechanically fastened membranes shall be permitted to separate and deflect from adjacent components at locations where they are not fastened.
8.9 In reference to 8.5, all adhesives shall maintain full contact between all the surfaces of all components to which it has been applied to or comes in contact with without any separation. delamination, fracture, cracking or peeling of the adhesive or its bond.
Exception No, 1: Mechanically fastened membranes shall be permitted to separate and deflect from adjacent components at location where they are not fastened.
Exception No, 2: Partially adhered membranes shall be permitted to separate and deflect from adjacent components at locations where adhesive placement was nor intended.
Exception No. 3: Tearing of membrane at fastener plates and batten bars is allowed to ultimate failure.
Exception No. 4: Minor areas of delamination are allowed provided they do not continue to grow in size
by more than 50% during a given pressure level. Minor areas of delamination in wind uplift testing are an area approximately 1% of the test sample. For a 12 x 24 ft (3.6 x 7.3 m) test an area of 3 ft2 (0.28 for a 5 x 9 test an area of 0.5 ft2 (0.05 m2), whereby twe adhered components which are intended to be in contact are not In contact.
REPORT
9 General
9.1 The report Is to contain the following information:
a) Assembly and material description.
b) Fastening typesJpatterns.
C) Deflection measurements, when taken.
d) Maximum uplift pressure obtained on the assembly is to be recorded. When a combination of underside uniform static positive pressure and topside uniform static negative pressure is utilized the corresponding pressure developed within the bottom and the top chambers are also to be recorded.