Roof Tiles Wind Speed

Two alternative models that use wind speeds near the.

Roof tiles wind speed.

Mean wind speeds at tile surfaces were recorded that were up to 55 higher than the mean wind speed at mid roof height in the approach flow. Clay tiles fracture easily allowing wind penetration through cracks or gaps from missing tiles. During windy weather a tile or slate will be subject to wind uplift forces caused by the wind blowing over the roof and creating vortices as it passes over the edges. Uplift tas 108 95 wind tunnel char as well as.

Long before the wind force is strong enough to rip the tile off the roof it will be lifted and dropped with each wind gust making an impact noise which may result in breakage. Compare contrast wind resistance of installation options mech. Standard asphalt shingles are certified to handle wind speeds from 60 to 80 miles per hour. 45 57 mph.

Develop a wind load model for low medium and high profile roof tiles to compute pressures and attachment forces 2. Use findings to evaluate fbc 1609 5 3 and tas 101 95 mech. As with lifting curling can loosen nails and break seals. If you want the best roof for high winds the decking under the shingles needs to be strong and sturdy and your fastners should be high quality.

Premium priced laminated shingles can be certified for wind speeds of up to 110 miles per hour. This is why wood shakes and clay tiles aren t warranted by roofing manufacturers for wind damage at all and asphalt shingles are typically limited to 75 to 110 mph for just 10 20 years. Craftsmanship is also important. Whilst the over 60 degree statement does agree with bs5534 below 60 degrees it only complies in low wind uplift situations.

Even if that doesn t happen curled tiles will no longer keep water and debris from getting to your roof. Tiles can curl in the wind when they are hit from the side. So what wind speeds do you need to be worried about. In a study of wind load on roof tiles the vulnerability analysis indicated that the net wind uplift loading on tiles caused an increase in tile destruction rather than the external surface pressures li et al.

Whilst the nhbc technical manual seeks to simplify the requirements of roof tile fixings it would appear that for some roofs have passed the nhbc final inspection with roof tiles that are not adequately fixed to comply with regulation 7 of the building regulations.