Innovative Solution is committed to combining traditional craftsmanship with modern technology to produce durable, aesthetic and sustainable thatched roofs to the maximum satisfaction of its customers.
Our services for individuals include highest quality standards working properly. We combine traditional techniques with modern processes to ensure that every thatched roof is durable, aesthetically pleasing and environmentally friendly. Our aim is to make our customers' homes look and feelmaintain their beauty and functionality in the long term.
We use only premium quality, carefully selected reeds and complementary materials for long life and aesthetic appearance.
Our craftsmen work with decades of experience and expertise, ensuring the accurate application of traditional and modern techniques.
Our thatched roofs are not only aesthetically pleasing, but we design and build them to withstand the elements and ensure a long service life
By using natural materials and sustainable construction methods, we contribute to reducing environmental impact.
We tailor each project to the client's needs, with unique design and construction solutions to ensure that the home is in harmony with its surroundings.
Before we start work, we ensure that the client's vision is fully realised through detailed consultation and planning.
We guarantee all thatched roofs we make and support our customers with long-term maintenance services.
Do you have further questions or requests regarding thatched roofs, construction or maintenance?
Open-pitched thatched roofs have been made for centuries. The thatch is attached to battens, creating an air space between the thatch and the substructure. In practice, thatch does not function as an insulating material; it is difficult to make this type of roof airtight. If the roof requires a certain degree of insulation, the conventional roof must be provided with additional insulation in the form of an insulation panel under the raised rafter, or it can be retrofitted with insulation from the inside. If the insulation is installed from the inside, a vapour barrier should preferably be applied to the inside of the insulation, otherwise there is a high risk of internal condensation.
Caution: this type of roof on residential buildings does not comply with the fire safety requirements of the Dutch building regulation.
The thatch covering should be laid on a solid rafter (or laminated timber) structure. The battens are fixed to the rafter. In the case of a conventional open structure, the battens are first covered with a 2-3 cm layer of reed or cane. The covering layer of reed is then laid on top. The bottom layer of reed is not penetrated by the covering layer of reed, only the neatly arranged layer of nailing reed or reed cloth is visible from the inside.
Only first class freshwater reeds should be used. The supplier must guarantee in writing that he will provide freshwater reeds with a sodium content not exceeding 0,13%.
First-class reeds should consist of mature, straight, flexible and strong, leafless, low-cut fibres. It shall not be scorched, mouldy or rotten and shall not be mixed with straw, weeds, hay or similar matter.
The Association advises that when ordering cane, the origin of the cane (country, region, area) should be clearly indicated in the quotation and/or order confirmation.
The presence of cattails, sedges and sedges (e.g. broadleaf sedge) is allowed to a limited extent in the reed, up to 2% of the surface. Any fibres larger than 1 cm in diameter must be removed. There is a close correlation between the length and thickness of the reed used and the thickness of the cane and the work to be carried out.
Where the reed extends beyond the edge of the substructure, care should be taken to ensure that it is braced. Pressurised reeds are more resistant to storms. The pitch of the roof should be between 40 and 60 mm, depending on the local expected wind strength. The thatch should extend about 15 cm from the inside of the span. The Association recommends that the inner curved part should project by about 50 mm less than the outer curved part, so that the inner part remains clear - but there are many different ways of doing things.
For clamping, use a 6 (5 mm) or 7 (4.6 mm) galvanized steel wire.
The first batten shall be laid 180 mm from the tensioning batten.
The second one 120 mm from the first one, and all other slats 280-300 mm.
The top batten is 150 mm from the top, the one below it 200 mm below.
As a rule of thumb, the thickness of the reed cane and the distance between the clamping wires should be the same.
The reed must be tightly fixed to the slats.
Roof tiles must be made using a spinning technique. The soft wire used for this purpose shall be 1 mm thick stainless steel wire and shall be applied at 22 cm intervals.
If the distance from the ridge of the roof to the tension battens is less than or equal to 7 m, the pitch of the roof is 40 degrees or more, and the thatch is less than 1,50 m thick, the thickness of the thatch layer shall be at least 25 cm at the bottom and 22 cm at the top. The top layer covering the wires should be at least 9 cm thick.
If the distance between the ridge and the tension battens exceeds 7 m, or if the pitch of the roof is less than 40 degrees, or if a thatch longer than 1.50 m is used, the above dimensions are changed to at least 28 and 25 cm with a minimum top cover of 10 cm.
A thatched roof laid on a flat surface should be flat. Thatch is a natural material, the colour, length and thickness of which can vary greatly depending on the year and the place of production. This is sometimes noticeable on new roofs - a so-called checkerboard pattern can be observed. The variation in shade has nothing to do with the quality of the thatch used, and the pattern disappears completely during the first year.
The reeds should be laid on the ridge at a height that leaves a maximum of 12 cm between the ridge and the ends of the reed stems, so that the ends of the reed bundles remain visible to a maximum thickness of 12 cm.
The Association advises that netting should be installed to prevent the bottom layer of thatch from sagging during frosts and to reinforce the bottom edge of the masonry if there is a risk of frost.
The absolute minimum angle at which the reed can be laid is 30 degrees. This applies to short roof pitches (roof pitches of up to 2 m, flat or round roof windows, etc.). For longer roof surfaces, the minimum pitch is 40 degrees. Where thatch is installed on roofs with a pitch of less than 45 degrees, this will result in a shorter life span of the thatch.
The above are basic requirements that all new thatched roofs must meet, at least at the time of installation. As thatching is an old craft based on the use of natural materials, in practice roofs differ in appearance and quality. New roofs that meet at least these standards are of adequate quality. Of course, there are also roofs that go far beyond these basic requirements - usually resulting in a longer life and/or a better appearance.
Do you have further questions or requests regarding thatched roofs, construction or maintenance?
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