The Complete Guide to Roof Window Flashings
If you’re not familiar with the ins and outs of roof window flashings, then not to worry – our handy guide will clear up all what all the different types of flashings are, and which roof windows they should be used in combination with.
Click on an option from the list below for information about the specific flashing type you’re looking for, or simply scroll to find out more!
- What do Flashing names mean?
- EZ Flashings
- EH Flashings
- EL Flashings
- EP Flashings
- EBV Flashings
- ES Flashings
WHAT DO FLASHING NAMES MEAN?
Before we jump into the nitty-gritty of the world of flashings, it’s important to understand what the names of each flashing mean. This will not only help you to decipher and differentiate between all the styles, which is no mean feat as they all sound so similar, but it’ll also help you decide which type of flashing is right for you!
So, what do the names mean? Most standard flashings go by 3-letter names, as you may have seen on our website. Luckily, they aren’t named this way just to confuse you – each of the letters stands for a feature of the product!
The first letter, almost always an ‘E’, just means that it’s a roof window flashing. Easy enough, right?
The second letter in the name stands for the type of roof covering with which the flashing should be used. It would make our lives a lot easier if the letter correlated with the starting letter of the name (for example, ‘S’ for slate’), but unfortunately it’s not that simple. Here’s a list of some of the most common roof coverings, and the corresponding letter used in the flashing name:
| Roof covering type | Letter code |
| Flat roof covering | S |
| Profiled roof covering | Z |
| High profile roof covering | H |
| Slate | L |
| Plain tiles | P |
Finally, the third letter in the name simply stands for the level at which the flashing will sit upon the roof. It can be installed at three different levels: +3cm (N), 0cm (V), and -3cm (J).
So, now that you’re equipped with the knowledge of how to decode flashing names, let’s jump into all the different types and what they can be used for!
EZ FLASHINGS
We supply a few different types of EZ flashings: EZV, EZJ, & EZA flashings.
EZV and EZJ flashings are a standard type of roof window flashings. They should be used for profiled roof coverings up to 45mm depth.
As an example, below is a diagram showing the individual elements of EZV flashings:
1 – top part of the flashing
2 – bottom part of the flashing
3 – side parts
4 – gutter
5 – aluminium strips to fix the flashing
EZA flashings are a profiled covering up to 45mm, for use with roof tiles and profiled sheeting. A unique solution for low pitch roofs, these flashings increase the pitch of the window to allow for an increased view outside.
Below is a diagram showing the individual elements of EZA flashings:
1 — top part of the flashing
2 — bottom part of the flashing
3 — side parts with sponge seals
4 — aluminium strips to fix the flashing
EH FLASHINGS
Types of EH flashings include EHN-A, EHN-AT, and EHA.
EHN-A is a standard type of roof window flashing, used for deeply profiled roof coverings up to 90mm depth.
Below is a diagram showing the individual elements of EHN-A flashings:
1 – top part of the flashing
2 – bottom part of the flashing with an apron 210 mm in length
3 –side parts and sponge seals
4 – gutter
5 – aluminium strips to fix the flashing
6 – tile supporting profile
EHN-AT are special flashings for use where you need or desire additional insulation around the window.
EHA flashings are a profiled covering up to 45mm, for use with roof tiles and corrugated & deep profiled sheeting. A unique solution for low pitch roofs, these flashings increase the pitch of the window to allow for an increased view outside.
EL FLASHINGS
EL flashings are designed to be used with flat slate roofing, at up to 10mm thickness.
Types of EL flashings include ELV, ELV-T, and ELJ, which specifically can be used for both natural and man-made, non-interlocking slates.
Below is a diagram showing the individual elements of an ELV window flashing:
1 — top part of the flashing
2 — bottom part of the flashing
3 — side parts
4 — gutter
EP FLASHINGS
EPV and EPJ flashings are designed for use with non-interlocking plain tiles, up to 16mm thick. Examples of these include clay peg, plastic, and concrete tiles. There are also EPV-T flashings, which provide additional thermal insulation if this is required or desired.
Below is a diagram showing the individual elements of an EPV flashing:
1 — top part of the flashing
2 — bottom part of the flashing
3 — modular side parts
4 — gutter
5 — tile supporting profile
EBV FLASHINGS
EBV flashings are supplied with prefabricated joints and are designed for use with steel panel sheeting roofs.
Below is a diagram showing the individual elements of an EBV flashing:
1 – top part of the flashing
2 – bottom part of the flashing with lead apron
3 – side parts
4 – gutter
ES FLASHINGS
ESA flashings are flat coverings with a profile depth of 10mm. They’re designed for use with slates or other flat roof coverings. As with EZA and EHA flashings, they’re the ideal solution for low-pitched roofs, as they increase the pitch of the roof window.
You can view our range of Roof Window Flashings from Fakro here.
If you have any questions that weren’t answered in this article, please don’t hesitate to contact our friendly team! We’re always happy to help with whatever you need, whether it’s expert advice or a quote for our products.