Accurate, consistent falls
Machine-cut tapers give an even gradient across the whole roof.
Products
Firrings
Firring timbers are tapered sections used in flat-roof construction to create the required fall towards outlets or gutters.
02 / DETAIL
Firring timbers are tapered sections used in flat-roof construction to create the required fall towards outlets or gutters.
At DTE, we supply firring timbers profiled to suit the roof which make the roof installation much easier and very accurate.
Suitable for flat roofs using I-joists, Posi-Joists or roof trusses
Product is labelled and referenced to layout plan for easily locating product in-situ
Extensive technical knowledge from our in-house design team
03 / FALLS + DRAINAGE
Build the fall into the roof
Firring timbers are tapered sections fixed over a flat roof deck to create the fall that moves water to the outlets. Cut accurately in the factory, they take guesswork off site.
No cutting on site
Supplied to length and ready to fix, saving labour and waste.
Supplied with your floor
Ordered alongside joists and decking so the roof arrives as one package.
Timber sections set out in the DTE workshop
CCPI Approved
Our products are CCPI Approved: clear, accurate, accessible, up-to-date and unambiguous product information.
04 / PROJECT INPUTS
What we need to quote
A roof plan and the required fall are usually all it takes to price a firring schedule.
Send project drawings01
Roof plan
Deck layout with outlet and gutter positions.
02
Required fall
The gradient specified, typically expressed as a ratio.
03
Deck build-up
Joist centres, deck material and the finished waterproofing system.
04
Quantities
Roof area or overall dimensions so lengths can be scheduled.
05 / QUESTIONS
Common questions
Flat roof packages
Falls, decking and joists together
Send the roof plan and we will schedule the firrings alongside the rest of your floor or roof package.