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135mm Helical Flat Roof Nails Warm Roof Fixings ǀ pack of 25

135mm Headed Helical Flat Roof Nails - Warm Roof Fixings
135mm Helical Flat Roof Nails Warm Roof Fixings ǀ pack of 25
  • Diameter: 8mm
  • Improved thermal bridging
  • Minimal compression of insulation
  • approx. 15-20 fixings per 1200x2400mm board
  • Suitable: from 49mm to 95mm Insulation Panels
Estimated delivery:
In Stock
£ 43.18
Ex VAT: £ 35.98
  • Brand: Various
  • Model: 135mm Helical
  • Dimensions: 135mm x 8mm x 135mm
  • SKU: 135mm
  • Product code: P1-710
  • MPN: 135mm-flat-roof-nails

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135mm Helical Flat Roof Nail Warm Roof Fixing is a high performance, self-tapping, zinc plated nail designed for a quick installation and securing structural 6mm Plywood or 9mm OSB composite insulation panels.

Helical Warm Roof Nails are a quick and reliable fixing method for energy efficient warm roof construction.

When standard nails drive straight, helical does not, it rotates as it is driven. 

That way your timber won't split or bounce (unique one-piece stress free fixing).

Best fixing for securing structural 6mm Plywood and 9mm OSB composite insulation panels. 

Approximately 15-20 fixings per 1200m x 2400mm board - depending on rafter spacings.

135mm Helical Fixings are suitable for 49mm to 95mm insulation panels.

165mm Helical Fixings are suitable for 96mm to 129mm insulation panels.

195mm Helical Fixings are suitable for 129mm to 150mm insulation panels.

220mm Helical Fixings are suitable for 150mm to 179mm insulation panels.




Diameter: 8mm

Length: 135mm

Pieces per pack: 25

Suitable: from 49mm to 95mm Insulation Panels


Key points:

 · No drilling

 · Large 20mm head

 · High performance

 · No need for screws

 · Quick installation

 · Unlike a nail, rotates whilst being driven in, eliminating the risk of splitting timber

 · Unique one-piece stress free fixing 

 · Improved design to prevent bending during installation

 · Minimal compression of insulation

 · Improved thermal bridging

 · 8.8 High Tensile Steel

 · Zinc Plated

 · Passivated


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet 

Board covarage 4.00 m2
Diameter 8mm
Length 135mm
Material Zinc Plated Steel
Profile for 49mm to 95mm thick Insulation Panels
Head 20mm
Coverage 15-20 fixings per 8 by 4 sheets
Quantity 25 pcs per pack
Shipping method Courier
Applications Flat Roof ǀ Hot Bitumen ǀ Decking
ETA Notification Yes
Features Quick Installation ǀ Plywood ǀ OSB

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
135mm Headed Helical Flat Roof Nails - Warm Roof Fixings
135mm Helical Flat Roof Nails Warm Roof Fixings ǀ pack of 25
£ 43.18