When a roof has been professionally thatched, it should last between 40 and 50 years (so, the same as any other roof). However, the roof ridge will have to be replaced roughly every eight to ten years.
Are thatched roofs expensive to maintain?
Thatching is a sought-after and highly skilled service, so it does tend to be quite expensive. There are also different types of thatching material, including Norfolk Reed, Combed Wheat and Long Straw. Each has a different cost and lifespan.
What are the disadvantages of a thatched roof?
Disadvantages of a Thatched Roof
- Size of the roof.
- Shape and design of the roof.
- The material used.
- The height to the ridge.
- Removing existing thatching.
- The condition of the woodwork.
- The thickness of the thatch that is required.
How do you maintain a thatched roof?
Brushing a Thatched Roof
The top layer of thatch on any thatched roof rots over time. This layer of rotten thatch needs to be brushed off every 5-8yrs to ensure no deeper rotting and thatch degeneration. When a thatched roof is originally built the thickness of the thatch should always allow for this maintenance.
How often should thatch be treated?
At a pitch of less than 45° the thatch will decay and leak much sooner. Thatch roofs require regular inspections by an experienced thatcher every 8-10 years. Re-dressing of the thatch roof (removal of rotten thatch and the addition of a new layer) is usually necessary on a 15-20 year cycle.
Do thatched roofs attract vermin?
A Thatch roof is a warm and dry place for pests to live and if it is a straw roof, there will almost certainly be some grain left in it, which will provide a food source for rodents.
How many years does a thatched roof last?
Water Reed thatch should last from 25 to 40+ years. Combed Wheat Reed from 25 to 35 years. Longstraw thatch from 15 to 25 years. Ridges need to be replaced every 10 to 15 years.
Should I buy a thatched roof?
Excellent for insulation – Thatched roofs provide excellent insulation, meaning your home will stay warm when it’s cold outside and keep it cool during the summer. … Great durability – Thatched roofs are typically very durable and long-lasting. With proper maintenance, thatched roofs can last up to 60 years.
Are thatched roofs still used?
Since the bulk of the vegetation stays dry and is densely packed—trapping air—thatching also functions as insulation. It is a very old roofing method and has been used in both tropical and temperate climates. Thatch is still employed by builders in developing countries, usually with low-cost local vegetation.
Are thatched houses more expensive to insure?
Are thatched roofs more expensive to insure? Expect to pay more for your buildings or contents insurance as a thatched roof is a bigger fire risk than a slate roof. They also have a more expensive rebuild value than conventional houses because they’ve been built using specific materials by specialists.
Can you get a grant for a thatched roof?
A change of the thatching material is also included in this. Grants may be available for owners of listed buildings, but it is not standard across the country. Both local councils and English Heritage offer grants but it has reduced considerably over the years.
Is Moss on a thatched roof a problem?
As an expert in thatched roofs will tell you, moss and algae can cause thatching material to deteriorate rapidly. The two grow on the roof’s surface to create a thin film that covers the thatch and prevents it from drying properly. The roof stays moist for longer, allowing for fungi to thrive.
Can you replace a thatched roof with tiles?
Yes, it is possible to replace a thatched roof with tiles. … Others simply like the look of tiles better. However, be aware that replacing thatch with tiles requires your roofing contractor to strip everything down to the bare timbers and start from scratch.
Are thatched roofs hard to maintain?
The lifespan of a thatched roof and therefore its maintenance requirement is due to several factors. Because of the natural degradation of the material over time, it will eventually reach the stage where it requires completely rethatching.
What is the R value of thatch?
As a rule of thumb 10” of thatch has the same R-value as 7” of fiberglass batt, or an R-value of R26. 6.
Can you thatch a roof in winter?
A well-kept thatched roof will keep you warm in the winter and cool in the summer. Prevention is the best and cheapest cure when it comes to thatched roofs.