The vast majority of professional Roofers and others in the construction sector now recognise the need of allowing building materials and structures to ‘breathe,’ such as roof tiles. Breathability is a surprise technical factor that is crucial and well recognised, especially by conservationists. CK Contracting Solutions, Batesville is an excellent resource for this.
While significant attention has been paid to the harm caused to older buildings by resistant modern paint methods and cement-rich mortars and renders, the roof is generally overlooked. This is odd because the roof is one of the most important places for ventilation, i.e. breathing. In the case of elaborate tiled or slated roofs, for example, ‘breathability’ is a major consideration.
The development of impervious roofing felts and equally unbreathable fibreglass insulation has harmed the endurance and performance of many historic roofs in recent years. Roofing felt was first used as a supplemental barrier to keep the elements, such as rain and snow, from penetrating the roof. The issue with using such impermeable material is that it prevents good air circulation in the underlying roof space, resulting in excessive humidity and damp conditions.
The rafters may become permanently moist as a result of the condensation, and in the worst-case scenario, the rafters may rot. Until recently, whatever felt manufactured seemed impermeable. Today, a major amount of felt is made and advertised as being vapour permeable and so breathable.
The placement of fibreglass and other insulating material directly under the felt often exacerbates the lack of efficient ventilation in the space beneath roofs.
Due to the nature of modern living patterns and lifestyles, many old buildings in use today, historic or otherwise, face humidity issues. Roofing contractors are frequently confronted with such issues.
The following are the main causes that contribute to a lack of efficient ventilation and, as a result, the creation of excessive levels of humidity (water vapour):
- A growing number of us are opting to live in older, historic structures. (With all of the so-called “mod cons,” the vast majority of us now spend more time inside our homes than we did previously.)
- Bathing, with an emphasis on the usage of shower units.
- Preparing meals.
- Water tanks in the loft were put without lids.
- Double and, more recently, triple glazing installation.
- Due to the complete blockage of antique fireplaces and flues, open flames are becoming a faraway luxury.
You’ve probably heard the phrase “the old way is best.” When it comes to roofing, there are strong justifications for employing some of the old traditional methods for the reasons stated above. Reeds were employed as a secondary barrier between the tiles and the battens, for example. Mortar is also applied to the underside of tiles and slates. On old slate roofed structures, the latter was a popular practise. These two methods allow the roofs to ‘breathe.’
CK Contracting Solutions
226 Nelly Belle Ln, Batesville, Arkansas 72501
Phone No: 870-341-5759