Technical Support
Frequently Asked Questions (FAQs)
Below are the answers to the ten most frequently asked questions about Kestrel's products and PVC-UE applications in general...
1. With what do you recommend fixing
cover and corner joints to Fascia Board?
A: Low Modulus Neutral Cure Silicone.
2. What is the minimum coverage of
waveline products - K-Wave &
K-Crest?
A: A minimum of 150mm.
3. Has hollow soffit/cladding got a
Class 1 Fire Rating?
A: No, whilst PVC-UE products in the Kestrel range have, hollow soffit/cladding
has not.
4. Are woodgrain products guaranteed
for external use?
A: Yes for 10 years and white products for 15 years.
5. Does Kestrel supply vented soffit
with an insect mesh?
A: No, Kestrel does not recommend the use of mesh due to the reduction in
vent area and air flow, coupled with the possibility of the mesh becoming
totally blocked from airborne dust and debris. BS5250 recommends a minimum
slot size of 4mm.
6. What expansion gaps are required
when installing Kestrel products?
A: For white products there should be an expansion gap of 5mm per board end
(eg. 2 boards butting up to each other in the same plane = 10mm gap). When
installing woodgrain product this gap is increased from 5mm to 8mm per board
end.
7. Are PVC cladding products suitable
for use in swimming pool buildings?
A: Yes, contact with swimming pool water is not detrimental to PVC.
8. Is it better to install the thickest
board available?
A: For a replacement installation a 16mm fascia board will perform equally
as well as thicker products, requiring no additional support and taking both
gutter and tile loading. If the 16mm board chosen is K16 it can be teamed
with 9mm K605 bargeboard to give a cost effective performance installation.
9. What is the coverage of Kestrel
Shiplap and Open-V Cladding boards?
A: 670/150 Shiplap = 150mm 671/100 Open-V = 100mm
10. What is the length of the leg on
Kestrel ‘L Boards’?
A: Both K16 and K605 have the same length of leg which is 36mm.
