There are a group of houses in a small coastal village that I often work at, all of the houses are built to the exact same design, all of the houses have parapet walls and all of the houses suffer from leaking at the parapet walls. I have been called in almost every year to deal with these problems from one house or another in that same village and I have perfected the solution for this problem.
The problem lies in the connection of the thatch to the parapet wall - many thatch roof designs for parapets do not allow for rain water drainage. This leads to the rain having no clear drainage channel and leads the parapet to hold the water, decreasing the lifespan of the thatch in that area and creating to rotting and leaking problems.
My solution addresses this problem head on - creating a clean, clear drainage channel (or gutter) for the rain water to exit the roof. This system rids the roof of water and allows the required aeration of the thatch in that area, decreasing the amount of time the thatch takes to dry properly.
|Original parapet wall/thatch connection|
|Drainage being fitted to parapet join|
|Thatch added around drainage|
|Parapet wall connection completed|
|Complex parapet wall design|
before channel was fitted
|Parapet wall join before channel was fitted|
|Close-up of connection of thatch|
to wall in original roof design
|Parapet wall with new drainage channel fitted|
|Close-up of drainage channel around complex parapet wall design|
The perfect water drainage channel for a thatch roof:
|The perfect parapet wall drainage channel - clean, clear and unblocked to |
allow water to drain adequately from thatch roof
For more information regarding water drainage and valley systems for thatch roofs refer to the Thatched Roof Maintenance page on my website.