Instructions / Assembly
4
ONDURA-6V closure strips ll the space created by the
corrugaons. Vented closure strips are recommended along
the eaves and ridge of the roof to enable airow under the
corrugaons. The venlaon holes are small enough to prevent
birds and insects from forming nests under the corrugaons.
Solid closure strips are available to completely block the
openings. There are two ridge strips and two eave strips
per pack.
Place rst ONDURA-6V sheet on roof. Align the ONDURA-6V
sheet to the rake edge. Align the eave edge of the ONDURA-6V
sheet to overhang the eave by 1 to 1-3/4 inches.
If more than one row of ONDURA-6V sheets is needed, then the
sheets must be installed along the eave rst. Then addional
rows are installed above the previous row.
Each row should be installed with the rst sheet at the opposite
end of the roof from the prevailing winds. With this orientaon,
the seam of the overlap will face away from the prevailing
winds. This orientaon will reduce the possibility of wind-driven
rain geng under the corrugaon overlap. If wind-driven rain
could come from both direcons, then we recommend sealing
along the overlap with an elastomeric caulk.
For aesthec reasons, we recommend staggering the posion of
the corrugaon overlap for each row by starng the second row
with a sheet that has fewer corrugaons. As a general guide, an
ONDURA-6V sheet with 3 or 4 corrugaons should be used for
the rst sheet on the second row. Then full-width sheets should
be used across the second row. If installing more than 2 rows,
the odd numbered rows should start with a full-width sheet and
the even numbered rows should start with a 3 or 4 corrugaon
sheet.
If possible, we recommend placing the rst row of ONDURA-6V
sheets on the roof to conrm coverage with overlaps before the
installaon of the sheets.
Note: We recommend genuine
ONDURA nails for installing
ONDURA-6V sheets. Genuine
ONDURA nails are made from
galvanized steel, are ring
shanked, and have a large EPDM
rubber washer to improve
sealing around the nail. Other
types of nails may not provide
sucient hold-down strength.
Color-coordinated screws with
washers may be available.
1/16 inch
diameter head
1/8 inch thick x
5/8 inch O.D.
EPDM rubber
washer
.135 inch
diameter
ring shank
Place closure strips under the ONDURA-6V sheet with the
curved side up to ll the corrugaons. The closure strips
must be placed where the nails will be located so that the
nails will securely hold the closure strips in place during the
life of the roof.
Tip: To help hold closure strips in place, adhere your
strip to the deck or the ONDURA-6V sheet with spray
adhesive before laying your sheet of ONDURA-6V
over it.
Ridge strip
Eave strip