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Frequently Asked Questions (FAQ)

Flashings -

Can Dektite be used over an asphalt built-up roof?
How many SCOTS fasteners would it take to attach a #9 Dektite?
Will Dektite work with a square pipe?
What is the most common fastener for use with the Dektite?
How much sealant is needed to install (5) #7 Dektites?
Can Dektite be used to flash a pipe on a roof with a 25 degree pitch?

Can Dektite be used over an asphalt built-up roof?
Elastomers, such as EPDM, are not compatible with petroleum based materials.
How many SCOTS fasteners would it take to attach a #9 Dektite?
Based on a 1-1/2" recommended spacing between fasteners, and a 25" base diameter, it would take 50 total.  The number of fasteners can be estimated by multiplying the Dektite base diameter by 2.
Will Dektite work with a square pipe?
Yes, Download this File -  Use of Dektite for Flashing Square Section Pipes   - pdf (130 Kb)
What is the most common fastener for use with the Dektite?
SCOTS Teks for attaching Dektite to a metal roof.
How much sealant is needed to install (5) #7 Dektites?
Use the following formula:  The number of sealant tubes = (# of Dektites) x (Dektite base diameter) / 50.  or (5) x (14") / 50 = 1.4 tubes.
Can Dektite be used to flash a pipe on a roof with a 25 degree pitch?
When used on roofs where pitch is steeper than 20 degrees, or when used on deep ribbed profile roof panel (1-1/2" deep corrugation or more).   Consider using next larger size Dektite that will accommodate the same pipe diameter.

Technical Services Manager - Tony Czarkowski  aczarkowski@itwbuildex.com

 Last modified: November 29, 2007

 

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