Purlins roof
A purlin roof is a roof type for a pitched roof. On this page you will read all kinds of additional information regarding the construction, maintenance and insulation of a purlin roof and what costs you should consider. Read on.
Quickly go to
What is a purlin roof?
A purlin roof is also called a twill roof and is a type of support structure that can be used with pitched roofs. The structure of the roof consists of purlins and rafters.
The purlins of the roof are wooden beams or girders installed longitudinally on the roof or roof, with the two short sides parallel to the roof plane to be supported. The purlins are anchored to the load-bearing walls. The rafters lie on the purlins and run vertically down from the ridge of the roof.
Not the same as a truss roof
A purlin roof is different from a truss roof, although a truss roof is often used as an alternative to a purlin roof. A truss roof is made up of rafters that run vertically from the bottom up to the ridge of the roof. Here they meet on either side at the crossbeam. A rafter roof has its own advantages and disadvantages compared to a purlin roof. Would you like more information or would you like someone to think along with you about the possibilities? Our experts are happy to be part of your project.
Advantages and disadvantages purlins roof
To make the consideration for whether or not to install a purlin roof easier, we have outlined the following overview of purlin roof pros and cons for you.
Advantages purlin roof
- Realization of the purlin roof generally goes very smoothly;
- The possibility of creating an open roof;
- Lots of space under the roof. In many cases even so much space that a full room can be realized. Also ideal for use as additional storage space;
- A years-old form of roof construction known to many roofers. So should you ever need work done on the purlin roof, you can easily turn to an experienced roofer;
- Virtually all types of roofing are possible on a purlin roof.
Drawbacks purlin roof
- The limited span of the purlin roof is the biggest drawback. A purlin roof can span about 3 to 4 meters;
- Pre-assembling a purlin roof is not an option, as the purlins are bricked into the wall on site. This makes labor costs thus higher, as the work and assembly can only be done on site;
- A purlin roof is less flexible than a truss roof, for example.
Free quote?
Building a purlin roof by the experts at Roofers 24/7
A purlin roof is a fairly old type of support structure and therefore has a specialized method of construction. The experts at Roofers 24/7 build a purlin roof in the following order:
Step 1 - Roof construction
The rafters and purlins are attached directly to the wall plates and together form the framework of the load-bearing roof structure. The purlins are placed horizontally to accommodate much of the roof weight and the rafters run vertically from the ridge.
Step 2 - Insulation layer
It is recommended to have your purlin roof insulated, especially if the space under the roof is used as additional living and/or living space. We recommend having your roof insulated anyway, because no one likes to pay more energy costs than necessary. Depending on the insulation method chosen, this step involves placing the insulation material. This can be done under the roof (along the inside) or outside the roof (along the outside).
Step 3 - Shelter
An under-roof acts as a protective layer between the insulation material and the roofing material, usually a type of foil or under-roof sheets.
Step 4 - Roofing
The roof is now almost finished and only needs to be covered with the roofing material of your choice. Almost all types of roofing are possible on a purlin roof. We are happy to inform you about the possibilities.
Insulating roof purlins
We absolutely recommend insulating your roof. It is cost effective, sustainable and an investment that increases the value of your home. Plenty of reasons to have your purlin roof insulated. But how do we do it? This can be done according to two different methods about which you can read more here.
Option 1: Purlin roof insulation from the inside
Having the roof insulated from the inside means that the insulation comes under the roof ín the property. This can be done in two different ways:
-
Two layers of insulation
A thin layer of insulation material is placed between the rafters, e.g. mineral wool. Then thicker insulation boards can be attached between the purlins. This creates a double and tight insulation shell. -
One layer of insulation
In some cases the rafters are too thin to fit insulation material between them. The rafters can then be thickened so that insulation boards can still be installed.
Option 2: Purlin roof insulation from the outside
Insulating a purlin roof can also be done from the outside, also called a sarking roof. The plastic insulation spots are placed on top of the roof covering. Thus, in addition to insulation, these also provide additional protection to the roofing material by blocking moisture and dirt.
Cost purlins roof
The cost of work on a purlin roof depends on the type of work. Is it renovating an existing purlin roof or do you want a new purlin roof completed? Each project has its own price tag. Here we give you an overall picture of different work on a purlin roof and the associated costs:
| Type dakwerken | Wat? | Prijs (excl. btw, incl. plaatsing) |
|---|---|---|
| Gordingendak vernieuwen | Vernieuwen dakconstructie | Gem. € 1.550 per m³ |
| Vernieuwen gordingen | Gem. € 1.750 per m³ | |
| Vernieuwen kepers | Gem. € 1.700 per m³ | |
| Vervangen muurplaat | Vanaf € 500 per lopende meter | |
| Nieuwe dakbedekking | € 15 – € 110 per m² | |
| Gordingendak isoleren | Langs binnen isoleren | € 15 – € 45 per m² |
| Langs buiten isoleren | € 35 – € 55 per m² |
*The prices above are an average price as an indication. Would you like to know exactly what you will pay for (work on) a purlin roof? Ask us for a free, no-obligation quote.
Have purlins roof installed by experienced craftsmen
The professionals at Roofers 24/7 have years of experience installing a purlin roof. We ensure that the project is done carefully and qualitatively, as you have come to expect from us. We guarantee quality and many satisfied customers went before you. We offer not only high quality service, but also:
-
Tailor-made advice
Our professionals can provide you with tailored advice. They think with you and see it as a welcome challenge to realize your personal wishes into reality; -
Quality execution of work
The knowledge and experience we have gained over the past 20 years allow us to deliver extremely good quality work. We are not satisfied until you are; -
Fast execution with an eye for details
Our experts work efficiently and smoothly, but keep an eye for details at all times. No two roofs are the same, which is why it is important to be able to provide customized work.
Free quote purlin roof installation
At Roofers 24/7, we think it’s important to work hard, but also to be transparent. We provide you with a customized quote that includes more information than just our prices. After your quote request, you will receive our quote within 24 hours at the email address known to us. We will contact you a few days after the quote is issued for any additional questions and/or comments. For more information or to request a free, no-obligation quote, please email info@dakdekkers247.nl or fill out the contact form on our contact page. You can request a quote by phone by calling: 06-40125121.
- Free of charge
- Completely without obligation
- Within 24 hours
- Cut costs
Strengths of 24/7
- Nationwide coverage
- Cut costs
- Years of experience
- A quote within 24 hours
- Recognized and certified
- Best value for money
Request for proposal process
- Uw beschrijft uw project zo gedetailleerd mogelijk.
- Onze erkende specialist bekijkt uw aanvraag.
- U ontvangt binnen 24 uur een offerte op maat.